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3Com 7750 Series Command Reference Manual

3com switch command reference guide
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Table of Contents

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Download this manual See also: Configuration Manual, User Manual
www.3Com.com
Part Number: 10015463 Rev. AB
September 2006
3Com Switch 7750 Series

Command Reference Guide

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Summary of Contents for 3Com 7750 Series

  • Page 1: Command Reference Guide

    3Com Switch 7750 Series Command Reference Guide www.3Com.com Part Number: 10015463 Rev. AB September 2006...
  • Page 2 LICENSE.TXT or !LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.

  • Page 3: Table Of Contents

    3Com Switch 7750 Series Command Reference Guide – CLI Chapter 1 CLI Configuration Commands... 1-1 1.1 CLI Configuration Commands ... 1-1 1.1.1 command-privilege level ... 1-1 1.1.2 display history-command ... 1-2 1.1.3 super ... 1-2 1.1.4 super password ... 1-3...

  • Page 4: Chapter 1 Cli Configuration Commands

    System view Parameter level: Command Level. This argument ranges from 0 to 3. view: Command view. This argument can be any command view the switch supports. command: Command to be specified. Description Use the command-privilege level command to set the level of the specified command in a specified view.

  • Page 5: Display History-Command

    3. Description Use the super command to switch the current user level to the one identified by the level argument. If a password is previously set by using the super password [ level level ] { simple | cipher } password command, you need to provide the password as...

  • Page 6: Super Password

    3Com Switch 7750 Series Command Reference Guide – CLI well to switch to the higher user level. You will remain in the original user level if you fail to provide the correct password. Note that: Users logging into a switch also fall into four levels, each of which corresponding to one of the command levels.
  • Page 7 Note that no matter what form of the password (plain text or encrypted text) is in, the password entered for verification must be in plain text. Example # Set the password to switch from the current user level to user level 3 to “zbr”. <3Com> system-view System View: return to User View with Ctrl+Z.
  • Page 8 3Com Switch 7750 Series Command Reference Guide – Login Chapter 1 Login Commands ... 1-1 1.1 Login Commands... 1-1 1.1.1 authentication-mode... 1-1 1.1.2 auto-execute command... 1-2 1.1.3 databits... 1-3 1.1.4 display user-interface ... 1-3 1.1.5 display users ... 1-5 1.1.6 flow-control ... 1-6 1.1.7 free user-interface ...

  • Page 9: Chapter 1 Login Commands

    If you specify to perform local authentication when a user logs in through the Console port, a user can log into the switch with the password not configured. But for a VTY user interface, a password is needed for a user to log into the switch through it under the same circumstance.

  • Page 10: Auto-Execute Command

    Before executing the auto-execute command command and save your configuration, make sure you can log into the switch in other modes and cancel the configuration. Chapter 1 Login Commands...

  • Page 11: Databits

    3Com Switch 7750 Series Command Reference Guide – Login Example # Configure the telnet 10.110.100.1 command to be executed automatically after users log into VTY 0. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] user-interface vty 0 [3Com-ui-vty0] auto-execute command telnet 10.110.100.1...
  • Page 12 3Com Switch 7750 Series Command Reference Guide – Login View Any view Parameter type: User interface type. number: User interface number. summary: Displays the summary information about a user interface. Description Use the display user-interface command to display the information about a specified user interface or all user interfaces.

  • Page 13: Display Users

    3Com Switch 7750 Series Command Reference Guide – Login Filed Tx/Rx Modem Privi Auth # Display the summary information about the user interface. <3Com>display user-interface summary User interface type : [AUX] 0:UXXX XXXX User interface type : [VTY] 8:UUUU X 5 character mode users.

  • Page 14: Flow-Control

    3Com Switch 7750 Series Command Reference Guide – Login <3Com> display users Delay AUX 0 00:00:00 VTY 0 00:06:08 : Current operation user. : Current operation user work in async mode.F 0 Table 1-2 Descriptions on the fields of the display users command...

  • Page 15: Free User-Interface

    3Com Switch 7750 Series Command Reference Guide – Login Description Use the flow-control command to configure the flow control mode of the user interface. Use the undo flow-control command to restore the default flow control mode of the user interface.

  • Page 16: Header

    Use the header command to set the banners that are displayed when a user logs into a switch. The login banner is displayed on the terminal when the connection is established. And the session banner is displayed on the terminal if a user successfully logs in.
  • Page 17 <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] header shell %SHELL: Hello! Welcome% (Make sure the beginning and end characters of the banner are the same.) When you log in the next time, the session banner appears on the terminal as the...

  • Page 18: History-Command Max-Size

    3Com Switch 7750 Series Command Reference Guide – Login (The beginning and end characters of the banner are not displayed.) <3Com> Option 2: Enter the banner in multiple lines. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] header shell %SHELL: (Following appears after you press <Enter>:)

  • Page 19: Idle-Timeout

    3Com Switch 7750 Series Command Reference Guide – Login Use the undo history-command max-size command to revert to the default history command buffer size. Example # Set the size of the history command buffer of AUX 0 to 20 to enable it to store up to 20 commands.

  • Page 20: Lock

    3Com Switch 7750 Series Command Reference Guide – Login 1.1.11 lock Syntax lock View User view Parameter None Description Use the lock command to lock the current user interface to prevent unauthorized operations in the user interface. With the execution of this command, the system prompts to enter and confirm the password, and then locks the user interface.

  • Page 21: Modem Auto-Answer

    3Com Switch 7750 Series Command Reference Guide – Login Description Use the modem command to configure the both attribute of the Modem. Use the undo modem command to disable the both configuration. Both call in and call out are allowed when the modem command is executed without any keyword.

  • Page 22: Modem Timer Answer

    3Com Switch 7750 Series Command Reference Guide – Login [3Com] user-interface aux 0 [3Com>-ui-aux0] modem auto-answer 1.1.14 modem timer answer Syntax modem timer answer seconds undo modem timer answer View User interface view Parameter seconds: Waiting timeout time, in seconds, ranging from 1 to 60.The default value is 30 seconds.

  • Page 23: Protocol Inbound

    3Com Switch 7750 Series Command Reference Guide – Login none: Does not check. odd: Performs odd checks. space: Performs space checks. Description Use the parity command to set the check mode of the user interface. Use the undo parity command to revert to the default check mode.

  • Page 24: Screen-Length

    3Com Switch 7750 Series Command Reference Guide – Login System View: return to User View with Ctrl+Z. [3Com] user-interface vty 0 [3Com-ui-vty0] protocol inbound ssh 1.1.17 screen-length Syntax screen-length screen-length undo screen-length View User interface view Parameter screen-length: Number of lines the screen can contain. This argument ranges from 0 to 512 and defaults to 24.

  • Page 25: Service-Type

    3Com Switch 7750 Series Command Reference Guide – Login Parameter all: Sends messages to all user interfaces. type: User interface type. number: Absolute or relative index of the user interface. Description Use the send command to send messages to a specified user interface or all user interfaces.
  • Page 26 3Com Switch 7750 Series Command Reference Guide – Login Description Use the service-type command to specify the login type and the corresponding available command level. Use the undo service-type command to cancel login type configuration. Commands fall into four command levels: access, monitor, system, and...

  • Page 27: Set Authentication Password

    3Com Switch 7750 Series Command Reference Guide – Login telnet tracert undo 1.1.20 set authentication password Syntax set authentication password { cipher | simple } password undo set authentication password View User interface view Parameter cipher: Specifies to display the local password in encrypted text when you display the current configuration.

  • Page 28: Shell

    Command Reference Guide – Login Example # Set the local password of VTY 0 to “123”. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] user-interface vty 0 [3Com-ui-vty0] set authentication password simple 123 1.1.21 shell Syntax shell undo shell View...

  • Page 29: Speed

    3Com Switch 7750 Series Command Reference Guide – Login 1.1.22 speed Syntax speed speed-value undo speed View User interface view Parameter speed-value: Transmission speed (in bps). This argument can be 300, 600, 1200, 2400, 4800, 9600, 19,200, 38,400, 57,600, and 115,200 and defaults to 9,600.

  • Page 30: Sysname

    Use the undo sysname command to revert to the default domain name. The CLI prompt reflects the domain name of a switch. For example, if the domain name of a switch is “3Com”, then the prompt of user view is <3Com>. Example # Set the domain name of the switch to “ABC”.

  • Page 31: Telnet

    The default TCP port number is 23. Related command: display tcp status, and ip host. Example # Telnet to the switch with the host name of 3Com2 and IP address of 129.102.0.1 from the current switch (with the host name of 3Com1). <3Com1> telnet 129.102.0.1 Trying 129.102.0.1 ...

  • Page 32: User Privilege Level

    3Com Switch 7750 Series Command Reference Guide – Login View System view Parameter type: User interface type. first-number: User interface index, which identifies the first user interface to be configured. last-number: User interface index, which identifies the last user interface to be configured.
  • Page 33 3Com Switch 7750 Series Command Reference Guide – Login Example # Configure that commands of level 0 are available to the users logging into VTY 0. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] user-interface vty 0...

  • Page 34: Chapter 2 Commands For User Control

    Filters the users Telneting to other switches from the current switch. Description Use the acl command to apply an ACL to filter Telnet users. Use the undo acl command to disable the switch from filtering Telnet users using the ACL. By default, Telnet users are not filtered by ACLs.

  • Page 35: Snmp-Agent Group

    By default, SNMPv1 and SNMPv2c access a switch by community names. Example # Set the community name to “h123”, enable users to access the switch in the name of the community (with read-only permission), and apply ACL 2,000 to filter network management users (assuming that ACL 2000 already exists.)
  • Page 36 Use the undo snmp-agent group command to remove a specified SNMP group. By default, the snmp-agent group v3 group-name command is provided without the authentication and privacy keyword. That is, the switch does not authenticate or encrypt the specified group.

  • Page 37: Snmp-Agent Usm-User

    3Com Switch 7750 Series Command Reference Guide – Login 2.1.4 snmp-agent usm-user Syntax snmp-agent usm-user { v1 | v2c } user-name group-name [ acl acl-number ] undo snmp-agent usm-user { v1 | v2c } user-name group-name snmp-agent usm-user v3 user-name group-name [ authentication-mode { md5 |...
  • Page 38 ACL-related configuration. Example # Add the user named “3Com” to the SNMP group named “3Comgroup”, specifying to authenticate the user, specifying the authentication protocol to be HMAC-MD5-96, the authentication password to be “3Com”, and applying ACL 2002 to filter network management users (assuming that ACL 2002 already exists).
  • Page 39 3Com Switch 7750 Series Command Reference Guide – Configuration File Management Chapter 1 Configuration File Management Commands ... 1-1 1.1 Configuration File Management Commands ... 1-1 1.1.1 display current-configuration ... 1-1 1.1.2 display saved-configuration... 1-7 1.1.3 display this... 1-8 1.1.4 display startup ... 1-9 1.1.5 reset saved-configuration...

  • Page 40: Chapter 1 Configuration File Management Commands

    3Com Switch 7750 Series Command Reference Guide – Configuration File Management Chapter 1 Configuration File Management 1.1 Configuration File Management Commands 1.1.1 display current-configuration Syntax display current-configuration [ [ controller | interface [ interface-type [ interface-number ] ] | configuration [ configuration ] ] [ | { begin | exclude |...
  • Page 41 3Com Switch 7750 Series Command Reference Guide – Configuration File Management exclude: Displays the configuration excluding the specified characters. include: Displays the configuration including the specified characters. text: Text included in a configuration item, expressed in a regular expression. .
  • Page 42 3Com Switch 7750 Series Command Reference Guide – Configuration File Management Description Use the display current-configuration command to display the currently effective configuration parameters of the switch. By default, if some running configuration parameters are the same with the default operational parameters, they will not be displayed.
  • Page 43 3Com Switch 7750 Series Command Reference Guide – Configuration File Management vlan 1 vlan 2 interface Vlan-interface1 interface Vlan-interface2 ip address 10.1.1.2 255.255.255.0 interface Aux0/0 interface Ethernet1/0/1 duplex full speed 1000 port access vlan 2 interface Ethernet1/0/2 interface Ethernet1/0/3 interface Ethernet1/0/4...
  • Page 44 # View the lines containing the character string “10*” in the configuration information. The “*” indicates that the “0” before it can appear 0 times or multiple consecutive times. <3Com> display current-configuration | include 10* primary authentication 127.0.0.1 1645 primary accounting 127.0.0.1 1646 local-server nas-ip 127.0.0.1 key hello...
  • Page 45 Command Reference Guide – Configuration File Management interface Ethernet2/0/1 network 10.1.1.0 0.0.0.255 # View configuration information beginning with “user”. <3Com> display current-configuration | include ^user user-interface aux 0 user-interface vty 0 4 # View the configuration information except the port configuration.

  • Page 46: Display Saved-Configuration

    Use the display saved-configuration command to view the configuration files saved in the flash memory of the Ethernet Switch. If the Ethernet Switch works abnormally after startup, execute the display saved-configuration command to view the startup configuration of the Ethernet Switch.

  • Page 47: Display This

    3Com Switch 7750 Series Command Reference Guide – Configuration File Management ospf 1 ip route-static 10.12.0.0 255.255.0.0 Ethernet 12/0/0 user-interface con 0 user-interface aux 0 user-interface vty 0 4 authentication-mode none return The configurations listed above are global configuration, port configuration and user interface configuration respectively.

  • Page 48: Display Startup

    3Com Switch 7750 Series Command Reference Guide – Configuration File Management Example # Display the running configuration parameters in system view. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] display this sysname 3Com S6506R ftp server enable ftp timeout 36 local-server nas-ip 127.0.0.1 key 3Com...

  • Page 49: Reset Saved-Configuration

    Ethernet Switch should be configured again. Erase the original configuration files for reconfiguration. If the configuration files do not exist in the flash memory when Ethernet Switch is electrified and initialized, it will enter setup switch view automatically. Related command: saved-configuration.

  • Page 50: Save

    3Com Switch 7750 Series Command Reference Guide – Configuration File Management <3Com> reset saved-configuration The saved configuration will be erased. Are you sure?[Y/N]y Configuration in flash memory is being cleared. Please wait ... Configuration in flash memory is cleared. 1.1.6 save...

  • Page 51: Startup Saved-Configuration

    3Com Switch 7750 Series Command Reference Guide – Configuration File Management Example # Get the current configuration files stored in the flash memory. <3Com> save The configuration will be written to the device. Are you sure?[Y/N]y Now saving current configuration to the device.
  • Page 52 3Com Switch 7750 Series Command Reference Guide – VLAN Commands Chapter 1 VLAN Configuration Commands... 1-1 1.1 VLAN Configuration Commands... 1-1 1.1.1 broadcast-suppression... 1-1 1.1.2 description ... 1-2 1.1.3 display interface Vlan-interface ... 1-2 1.1.4 display vlan... 1-4 1.1.5 interface Vlan-interface ... 1-5 1.1.6 name ...

  • Page 53: Chapter 1 Vlan Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – VLAN Commands Chapter 1 VLAN Configuration Commands 1.1 VLAN Configuration Commands 1.1.1 broadcast-suppression Syntax broadcast-suppression { ratio | pps pps } undo broadcast-suppression View VLAN view Parameter ratio: Specifies the bandwidth ratio for the maximum broadcast traffic in specific VLAN.

  • Page 54: Description

    3Com Switch 7750 Series Command Reference Guide – VLAN Commands 1.1.2 description Syntax description { string | text } undo description View VLAN view, VLAN interface view Parameter string: Contiguous string describing the VLAN. It contains 1 to 32 characters without space.
  • Page 55 3Com Switch 7750 Series Command Reference Guide – VLAN Commands Parameter vlan-id: ID of the specific VLAN interface. Description Use the display interface Vlan-interface command to display the related information of a VLAN interface, including, physical state and link state of the VLAN interface,...

  • Page 56: Display Vlan

    3Com Switch 7750 Series Command Reference Guide – VLAN Commands 1.1.4 display vlan Syntax display vlan [ vlan-id [ to vlan-id ] | all | static | dynamic ] View Any view Parameter vlan-id: Specifies the VLAN ID, ranging from 1 to 4094.

  • Page 57: Interface Vlan-Interface

    3Com Switch 7750 Series Command Reference Guide – VLAN Commands Untagged Ports: Ethernet3/0/30 Table 1-2 Description of the fields of the display vlan command 1.1.5 interface Vlan-interface Syntax interface Vlan-interface vlan-id undo interface Vlan-interface vlan-id View System view Parameter vlan-id: ID of the VLAN interface, in the range of 1 to 4,094.

  • Page 58: Name

    3Com Switch 7750 Series Command Reference Guide – VLAN Commands Description Use the interface Vlan-interface command to create a VLAN interface or enter VLAN interface view. Use the undo interface Vlan-interface command to delete the VLAN interface. Related command: display interface Vlan-interface.

  • Page 59: Shutdown

    3Com Switch 7750 Series Command Reference Guide – VLAN Commands 1.1.7 shutdown Syntax shutdown undo shutdown View VLAN interface view Parameter None Description Use the shutdown command to disable a VLAN interface. Use the undo shutdown command to enable a VLAN interface.

  • Page 60: Vlan To

    3Com Switch 7750 Series Command Reference Guide – VLAN Commands View System view Parameter vlan-id: ID of the VLAN that you want to enter. Its value ranges from 1 to 4094. to: Specifies the range of VLANs to be removed.
  • Page 61 [3Com] vlan 4 to 100 This operation may take a few minutes. Please wait... Done. [3Com] # Display all the VLANs in the switch after multiple VLANs are created in batch. [3Com] display vlan Now, the following VLAN exist(s 1(default), 4-100 98 VLAN(s) found...

  • Page 62: Vlan All

    The operation of creating all VLANs and the operation of removing all VLANs will occupy plenty of system resources. As a result, the switch will not respond to the current user interface. During the operation, you cannot configure VLANs on the other user interfaces.

  • Page 63: Port-Based Vlan Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – VLAN Commands This may delete all static VLAN except the VLAN kept by protocol and the default VLAN. Continue?[Y/N]:y This operation may take a few minutes. Please wait... Can't delete vlan when shared-vlan enabled!

  • Page 64: Protocol-Based Vlan Configuration Commands

    VLAN, you can use the port trunk permit vlan and port hybrid vlan commands in Ethernet port view. For related command information, refer to the Port Basic Configuration Command section of the 3Com Switch 7750 Command Reference Guide.

  • Page 65: Display Protocol-Vlan Slot

    3Com Switch 7750 Series Command Reference Guide – VLAN Commands Example # Display protocol information and protocol index configured for Ethernet1/0/1 and Ethernet1/0/2 ports. <3Com> display protocol-vlan interface Ethernet 1/0/1 to Ethernet 1/0/2 Interface: Ethernet1/0/1 VLAN ID Protocol-Index Interface: Ethernet1/0/2...

  • Page 66: Display Protocol-Vlan Vlan

    VLANs. Related command: display vlan. Example # Display the protocol information and protocol indices configured for VLAN 2 through VLAN 20.. <3Com> display protocol-vlan vlan 2 to 20 VLAN ID: 2 VLAN Type: Protocol-based VLAN Protocol Index VLAN ID: 20...

  • Page 67: Port Hybrid Protocol-Vlan Vlan

    <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface Ethernet1/0/1 [3Com-Ethernet1/0/1] port hybrid protocol-vlan vlan 3 0 to 6 1.3.5 protocol-vlan vlan slot Syntax protocol-vlan vlan vlan-id { protocol-index [ to protocol-end ] | all } { slot slot-number |...
  • Page 68 3Com Switch 7750 Series Command Reference Guide – VLAN Commands View System view Parameter vlan-id: VLAN ID, ranging from 1 to 4094. protocol-index: Beginning protocol index, ranging from 0 to 6. Its value must be smaller than or equal to the value of the protocol-end argument.

  • Page 69: Protocol-Vlan

    # Associate protocols 0 to 6 in VLAN3 with board 5. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] protocol-vlan vlan 3 0 to 6 slot 5 1.3.6 protocol-vlan Syntax protocol-vlan [ protocol-index ] { at | ip [ ip-address [ net-mask ] ] | ipx { ethernetii | llc...
  • Page 70 3Com Switch 7750 Series Command Reference Guide – VLAN Commands protocol-end: End protocol index, ranging from 0 to 6. Note that its value must be larger than or equal to the value of the protocol-index argument. all: Specifies all protocol indices.
  • Page 71 # Configure VLAN 5 as a VLAN based on network segment 123.34.56.0. [3Com-vlan3] vlan 5 [3Com-vlan5] protocol-vlan ip 123.34.56.0 # Cancel protocols 0 to 5 in VLAN 5. [3Com-vlan5] undo protocol-vlan 0 to 5 Chapter 1 VLAN Configuration Commands 1-19...
  • Page 72 3Com Switch 7750 Series Command Reference Guide – Extended VLAN Applications Chapter 1 Voice VLAN Configuration Commands ... 1-1 1.1 Voice VLAN Configuration Commands ... 1-1 1.1.1 display voice vlan oui ... 1-1 1.1.2 display voice vlan status ... 1-1 1.1.3 display vlan...

  • Page 73: Voice Vlan Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – Extended VLAN Applications Chapter 1 Voice VLAN Configuration Commands Chapter 1 Voice VLAN Configuration Commands 1.1 Voice VLAN Configuration Commands 1.1.1 display voice vlan oui Syntax display voice vlan oui View Any view...
  • Page 74 3Com Switch 7750 Series Command Reference Guide – Extended VLAN Applications Chapter 1 Voice VLAN Configuration Commands Parameter None Description Use the display voice vlan status command to display voice VLAN-related information, including voice VLAN status (disabled/enabled), security mode, aging time, port mode (manual mode or automatic mode), and so on.

  • Page 75: Display Vlan

    3Com Switch 7750 Series Command Reference Guide – Extended VLAN Applications Chapter 1 Voice VLAN Configuration Commands Caution: The “Current voice vlan enable port mode” field lists the ports with the voice VLAN function enabled. Note that a port listed in this field may not currently operate in a voice VLAN.

  • Page 76: Voice Vlan

    3Com Switch 7750 Series Command Reference Guide – Extended VLAN Applications Chapter 1 Voice VLAN Configuration Commands 1.1.4 voice vlan Syntax voice vlan vlan-id enable undo voice vlan enable View System view Parameter vlan-id: ID of the VLAN that needs to be enabled with the voice VLAN function, ranging from 2 to 4094.

  • Page 77: Voice Vlan Aging

    3Com Switch 7750 Series Command Reference Guide – Extended VLAN Applications Chapter 1 Voice VLAN Configuration Commands 1.1.5 voice vlan aging Syntax voice vlan aging minutes undo voice vlan aging View System view Parameter minutes: Aging time (in minutes) to be set for a voice VLAN. This argument ranges from 5 to 43,200 and defaults to 1,440.

  • Page 78: Voice Vlan Mac-Address

    3Com Switch 7750 Series Command Reference Guide – Extended VLAN Applications Chapter 1 Voice VLAN Configuration Commands Use the undo voice vlan enable command to disable the voice VLAN function for a port. The voice VLAN function takes effect on a port only when it is enabled in both system view and port view.

  • Page 79: Voice Vlan Mode

    Use the undo voice vlan mac-address command to disable a MAC address from being used to identify voice devices. A switch can use up to 16 MAC addresses to identify voice devices, including the five default OUI addresses (as listed in Table 1-2). When the number of MAC addresses reaches 16, you will fail to add new MAC addresses.

  • Page 80: Voice Vlan Security Enable

    # Configure GigabitEthernet3/0/2 port to operate in the manual voice VLAN mode. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface GigabitEthernet 3/0/2 [3Com-GigabitEthernet3/0/2] undo voice vlan mode auto 1.1.9 voice vlan security enable Syntax voice vlan security enable...
  • Page 81 3Com Switch 7750 Series Command Reference Guide – Extended VLAN Applications Chapter 1 Voice VLAN Configuration Commands [3Com] undo voice vlan security enable...

  • Page 82: Chapter 2 Isolate-User-Vlan Configuration Commands

    You need to configure the hybrid attribute for a port in the process of configuring an isolate-user-VLAN. For hybrid port-related commands, refer to the Port Basic Configuration part of the 3Com Switch 7750 Command Reference Guide. 2.1 isolate-user-VLAN Configuration Commands 2.1.1 display isolate-user-vlan...

  • Page 83: Isolate-User-Vlan

    3Com Switch 7750 Series Command Reference Guide – Extended VLAN Applications Isolate-user-VLAN type : isolate-user-VLAN Route Interface: not configured Description: VLAN 0003 Tagged Ports: none Untagged Ports: Ethernet1/0/4 Vlan ID: 4 Vlan Type: static Private-vlan Type : Secondary Route Interface: not configured...

  • Page 84: Isolate-User-Vlan Enable

    Example # Map the isolate-user-VLAN 10 with the secondary VLAN 2, 3, 4, 5, and 9. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] isolate-user-vlan 10 secondary 2 to 5 9 2.1.3 isolate-user-vlan enable Syntax isolate-user-vlan enable...
  • Page 85 Command Reference Guide – Extended VLAN Applications Note: Multiple isolate-user-VLANs can be configured for a switch. With GVRP function enabled, a switch cannot be enabled with isolate-user-VLAN function. The isolate-user-VLAN function and super VLAN function cannot be enabled simultaneously for a VLAN. If a VLAN is specified as an isolate-user-VLAN or a secondary VLAN, you cannot configure it as a super VLAN or a sub VLAN additionally.

  • Page 86: Chapter 3 Super Vlan Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – Extended VLAN Applications Chapter 3 Super VLAN Configuration Commands Chapter 3 Super VLAN Configuration Commands 3.1 Super VLAN Configuration Commands 3.1.1 dhcp-server Syntax dhcp-server groupNo undo dhcp-server View VLAN interface view Parameter groupNo: Number of DHCP server, ranging from 0 to 19.
  • Page 87 3Com Switch 7750 Series Command Reference Guide – Extended VLAN Applications Chapter 3 Super VLAN Configuration Commands Description Use the display supervlan command to view the mapping relationship between Super VLAN and Sub VLAN, and the ports identifying mapping relationship between super VLAN and sub VLAN.

  • Page 88: Subvlan

    3Com Switch 7750 Series Command Reference Guide – Extended VLAN Applications Chapter 3 Super VLAN Configuration Commands Broadcast MAX-ratio: 100 Tagged Ports: none Untagged Ports: Ethernet3/0/4 3.1.3 subvlan Syntax subvlan vlan-list undo subvlan [ vlan-list ] View VLAN view of the super VLAN...

  • Page 89: Supervlan

    # Establish the mapping relationship between sub VLAN 3, 4, 5, 9 and super VLAN 10. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] vlan 10 [3Com-vlan10] supervlan [3Com-vlan10] subvlan 3 to 5 9 3.1.4 supervlan Syntax supervlan undo supervlan...
  • Page 90 3Com Switch 7750 Series Command Reference Guide – Extended VLAN Applications Chapter 3 Super VLAN Configuration Commands...
  • Page 91 3Com Switch 7750 Series Command Reference Guide — IP / IPX Chapter 1 IP Address Configuration Commands... 1-1 1.1 IP Address Configuration Commands ... 1-1 1.1.1 display ip interface ... 1-1 1.1.2 ip address... 1-3 Chapter 2 IP Performance Configuration Commands ... 2-1 2.1 IP Performance Configuration Commands...
  • Page 92 3Com Switch 7750 Series Command Reference Guide — IP / IPX 3.1.15 ipx route-static ... 3-16 3.1.16 ipx sap disable... 3-17 3.1.17 ipx sap gns-disable-reply ... 3-17 3.1.18 ipx sap gns-load-balance ... 3-18 3.1.19 ipx sap max-reserve-servers... 3-19 3.1.20 ipx sap mtu ... 3-19 3.1.21 ipx sap multiplier ...

  • Page 93: Chapter 1 Ip Address Configuration Commands

    3Com Switch 7750 Series Command Reference Guide — IP / IPX Chapter 1 IP Address Configuration Commands 1.1 IP Address Configuration Commands 1.1.1 display ip interface Syntax display ip interface [ brief ] [ interface-type [ interface-number ] View Any view...
  • Page 94 3Com Switch 7750 Series Command Reference Guide — IP / IPX Source quench: Routing redirect: Echo request: Router advert: Router solicit: Time exceed: IP header bad: Timestamp request: Timestamp reply: Information request: Information reply: Netmask request: Netmask reply: Unknown type:...

  • Page 95: Ip Address

    3Com Switch 7750 Series Command Reference Guide — IP / IPX ICMP packet Echo reply: Unreachable: Source Routing redirect: Echo Router advert: Router solicit: Time Timestamp Timestamp Information request: Information reply: Netmask Netmask Unknown 1.1.2 ip address Syntax ip address ip-address { mask | mask-length } [ sub ]...
  • Page 96 When you configure a primary IP address for an interface which already has a primary IP address, the new address will replace the old one. If you execute the undo ip address command without any parameter, the switch deletes both primary and secondary IP addresses of the interface. The undo ip address ip-address { mask | mask-length } command is used to delete the primary IP address.

  • Page 97: Display Fib

    3Com Switch 7750 Series Command Reference Guide — IP / IPX Chapter 2 IP Performance Configuration 2.1 IP Performance Configuration Commands 2.1.1 display fib Syntax display fib fib-rule View Any view Parameter fib-rule: Specifies FIB entries that conform to specific rules. It can be a combination of multiple rules.
  • Page 98 3Com Switch 7750 Series Command Reference Guide — IP / IPX Description Use the display fib command to view the summary of the forwarding information base (FIB). Each line indicates an FIB entry. The information includes: destination address/mask length, next hop, current flag, timestamp, and output interface. For the ACL configuration, refer to the ACL module of this manual.

  • Page 99: Display Icmp Statistics

    Route Entry matched by access-list 2001 Summary Counts :1 Destination/Mask 211.71.75.0/24 # View all the lines from the line containing the string 1.1.1.1. <3Com> display fib | begin 1.1.1.1 1.1.1.1/32 1.1.1.0/24 # View the total number of FIB entries. <3Com> display fib statistics Route Entry Count : 30 2.1.2 display icmp statistics...

  • Page 100: Display Ip Socket

    3Com Switch 7750 Series Command Reference Guide — IP / IPX timestamp mask requests 0 time exceeded 0 Table 2-3 Description on the fields of the display icmp statistics command Field bad formats bad checksum echo destination unreachable source quench...
  • Page 101 Use the display ip socket command to display the information of the current socket. Example # Display the information about the socket of the TCP type. <3Com> display ip socket socktype 1 SOCK_STREAM: Task = VTYD(18), socketid = 1, Proto = 6, LA = 0.0.0.0:23, FA = 0.0.0.0:0,...

  • Page 102: Display Ip Statistics

    3Com Switch 7750 Series Command Reference Guide — IP / IPX Field socket option socket state 2.1.4 display ip statistics Syntax display ip statistics View Any view Parameter None Description Use the display ip statistics command to view the statistics about IP packets.

  • Page 103: Display Tcp Statistics

    3Com Switch 7750 Series Command Reference Guide — IP / IPX Output: Fragment: Reassembling: 2.1.5 display tcp statistics Syntax display tcp statistics View Any view Parameter None Description Use the display tcp statistics command to view the statistics about TCP packets.
  • Page 104 3Com Switch 7750 Series Command Reference Guide — IP / IPX Example # View the statistics about TCP packets. <3Com> display tcp statistics Received packets: Total: 753 packets in sequence: 412 (11032 bytes) window probe packets: 0, window update packets: 0...
  • Page 105 3Com Switch 7750 Series Command Reference Guide — IP / IPX Sent packets Retransmitted dropped in retransmitted timeout Keepalive timeout/ Keepalive timeout, disconnected Initiated connections/ connections/ established connections Closed connections (dropped:\ initiated dropped: ) Chapter 2 IP Performance Configuration Field...

  • Page 106: Display Tcp Status

    3Com Switch 7750 Series Command Reference Guide — IP / IPX Packets dropped with MD5 authentication Packets permitted with MD5 authentication 2.1.6 display tcp status Syntax display tcp status View Any view Parameter None Description Use the display tcp status command to view the state of all the TCP connections so that you can monitor TCP connections in real time.

  • Page 107: Display Udp Statistics

    3Com Switch 7750 Series Command Reference Guide — IP / IPX 2.1.7 display udp statistics Syntax display udp statistics View Any view Parameter None Description Use the display udp statistics command to view the statistics about UDP packets. Related command: reset udp statistics.
  • Page 108 3Com Switch 7750 Series Command Reference Guide — IP / IPX Field total multicast packets no socket broadcast or multicast packets socket full input packets missing pcb cache Sent Total packet: 2.1.8 ip Syntax ip { ttl-expires | unreachables }...

  • Page 109: Ip Forward-Broadcast

    Use the ip forward-broadcast command to forward layer 3 broadcast packets. Use the undo ip forward-broadcast command to forbid forwarding layer 3 broadcast packets. By default, the switch does not forward layer 3 broadcast packets Example # Configure to forward layer 3 broadcast packets.

  • Page 110: Reset Tcp Statistics

    3Com Switch 7750 Series Command Reference Guide — IP / IPX Example # Clear the statistics information about IP packets. <3Com> reset ip statistics 2.1.11 reset tcp statistics Syntax reset tcp statistics View User view Parameter None Description Use the reset tcp statistics command to clear the statistics information about TCP packets.

  • Page 111: Tcp Timer Fin-Timeout

    The default value is 675 seconds. When the TCP connection state changes from FIN_WAIT_1 to FIN_WAIT_2, the finwait timer is enabled. If the switch does not receive FIN packets before finwait timer time outs, the TCP connection will be terminated.

  • Page 112: Tcp Window

    3Com Switch 7750 Series Command Reference Guide — IP / IPX Parameter time-value: TCP synwait timer value, in seconds, with the value ranging from 2 to 600. Description Use the tcp timer syn-timeout command to configure the TCP synwait timer.
  • Page 113 3Com Switch 7750 Series Command Reference Guide — IP / IPX Example # Configure the size of the transmission and receiving buffers to 3KB. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] tcp window 3 Chapter 2 IP Performance Configuration...

  • Page 114: Chapter 3 Ipx Configuration Commands

    If no vlan-id is specified, the IPX information of all the IPX-enabled VLAN interfaces will be displayed. Example # View the IPX information of VLAN interface 1. <3Com> display ipx interface Vlan-interface 1 Vlan-interface1 is down IPX address is 1.0020-9c68-448e [down] SAP is enabled...
  • Page 115 3Com Switch 7750 Series Command Reference Guide — IP / IPX 0 RIP general requests received, 0 RIP general responses sent 0 SAP received, 0 SAP sent, 0 SAP discarded 0 SAP requests received, 0 SAP responses sent Table 3-1 Description on the fields of the display ipx interface command...

  • Page 116: Display Ipx Routing-Table

    3Com Switch 7750 Series Command Reference Guide — IP / IPX 3.1.2 display ipx routing-table Syntax display ipx routing-table [ network [ verbose ] | protocol { default | direct | rip | static } [ inactive | verbose ] | statistics | verbose ]...
  • Page 117 3Com Switch 7750 Series Command Reference Guide — IP / IPX Table 3-2 Description on the fields of the display ipx routing-table command Field Dest_Ntwk_ID Proto Ticks Hops Nexthop Interface # Display the detailed IPX routing information, including the active and inactive routes.

  • Page 118: Display Ipx Service-Table

    3Com Switch 7750 Series Command Reference Guide — IP / IPX Field State # View the IPX routing statistics. <3Com> display ipx routing-table statistics Routing tables: Proto/State Direct Static Default Total Table 3-4 Description on the fields of the display ipx routing-table statistics command...
  • Page 119 3Com Switch 7750 Series Command Reference Guide — IP / IPX network network: Displays the network number information of the specified server. The network number comprises eight hexadecimal numbers and is in the range of 0x1 to 0xFFFFFFFF. The leading 0s can be omitted when you input a network number.

  • Page 120: Display Ipx Statistics

    3Com Switch 7750 Series Command Reference Guide — IP / IPX Table 3-5 Description on the fields of the display ipx service-table command Field Name Type NetId NodeId Sock Pref Hops Recv-If 3.1.4 display ipx statistics Syntax display ipx statistics...
  • Page 121 3Com Switch 7750 Series Command Reference Guide — IP / IPX 0 requests sent, 0 periodic updates SAP: 0 general requests received 0 specific requests received 0 GNS requests received 0 general responses sent 0 specific responses sent 0 GNS responses sent...

  • Page 122: Ipx Enable

    3Com Switch 7750 Series Command Reference Guide — IP / IPX SAP: 0 general requests received 0 specific requests received 0 GNS requests received 0 general responses sent 0 specific responses sent 0 GNS responses sent 0 periodic updates, 0 errors...

  • Page 123: Ipx Encapsulation

    3Com Switch 7750 Series Command Reference Guide — IP / IPX 3.1.6 ipx encapsulation Syntax ipx encapsulation [ dot2 | dot3 | ethernet-2 | snap ] undo ipx encapsulation View VLAN interface view Parameter dot2: Sets the encapsulation format to Ethernet_802.2.

  • Page 124: Ipx Network

    3Com Switch 7750 Series Command Reference Guide — IP / IPX Description Use the ipx netbios-propagation command to enable the current VLAN interface to forward type 20 broadcast packets. Use the undo ipx netbios-propagation command to disable the current VLAN interface from forwarding type 20 broadcast packets.

  • Page 125: Ipx Rip Import-Route Static

    3Com Switch 7750 Series Command Reference Guide — IP / IPX [3Com-Vlan-interface2]ipx network 675 3.1.9 ipx rip import-route static Syntax ipx rip import-route static undo ipx rip import-route static View System view Parameter None Description Use the ipx rip import-route static command to enable RIP to import static routes.

  • Page 126: Ipx Rip Multiplier

    3Com Switch 7750 Series Command Reference Guide — IP / IPX Description Use the ipx rip mtu command to configure the IPX RIP update packet size. Use the undo ipx rip mtu command to restore the default size. By default, the default size of IPX RIP update packets is 432 bytes.

  • Page 127: Ipx Rip Timer Update

    Related command: ipx rip multiplier Example # Set the RIP update interval to 30 seconds. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] ipx rip timer update 30 3.1.13 ipx route load-balance-path Syntax ipx route load-balance-path paths undo ipx route load-balance-path...

  • Page 128: Ipx Route Max-Reserve-Path

    When the configured new value is less than the old one, the switch, however, does not delete the excessive route entries. These route entries either time out or are manually deleted.

  • Page 129: Ipx Route-Static

    3Com Switch 7750 Series Command Reference Guide — IP / IPX Example # Set the maximum number of dynamic routes saved in the device to the same destination to 200. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] ipx route max-reserve-path 200 3.1.15 ipx route-static...

  • Page 130: Ipx Sap Disable

    # Configure an IPX static route, with the destination network number being 0x5a, next hop being 675.0-0c91-f61f, tick value being 10 and hop count being 2. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] ipx route-static 5a 675.0-0c91-f61f tick 10 hop 2 3.1.16 ipx sap disable Syntax ipx sap disable...

  • Page 131: Ipx Sap Gns-Load-Balance

    GNS requests with information of the nearest server. By default, the switch responds to SAP GNS requests with the information of a server that is picked out in turn from all the known servers. This prevents a server from getting overloaded.

  • Page 132: Ipx Sap Max-Reserve-Servers

    3Com Switch 7750 Series Command Reference Guide — IP / IPX Example # Respond to GNS requests with the information of the nearest server. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] undo ipx sap gns-load-balance 3.1.19 ipx sap max-reserve-servers...

  • Page 133: Ipx Sap Multiplier

    3Com Switch 7750 Series Command Reference Guide — IP / IPX View VLAN interface view Parameter bytes: The maximum SAP packet size, in bytes. It is in the range of 480 to 1500. Description Use the ipx sap mtu command to configure the maximum size of SAP update packets.

  • Page 134: Ipx Sap Timer Update

    Example # Set the SAP update interval to 300 seconds. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] ipx sap timer update 300 3.1.23 ipx service Syntax ipx service service-type name network.node socket hop hops [ preference preference ] undo ipx service { service-type [ name [ network.node ] ] [ preference preference ] |...
  • Page 135 130, node number to 0000-0a0b-abcd, hop count to 1 and server preference to 60. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] ipx service 4 FileServer 130.0000-0a0b-abcd 451 hop 1 preference 60 Chapter 3 IPX Configuration Commands 3-22...

  • Page 136: Ipx Split-Horizon

    3Com Switch 7750 Series Command Reference Guide — IP / IPX 3.1.24 ipx split-horizon Syntax ipx split-horizon undo ipx split-horizon View VLAN interface view Parameter None Description Use the ipx split-horizon command to enable split horizon on the current VLAN interface.

  • Page 137: Ipx Update-Change-Only

    3Com Switch 7750 Series Command Reference Guide — IP / IPX Use the undo ipx tick command to restore the default value. By default, the forwarding delay on the VLAN interface is one tick. Example # Configure VLAN interface 2 to experience a delay of five ticks before forwarding IPX packets.

  • Page 138: Reset Ipx Statistics

    IPX routes of a specific route type. Related command: display ipx routing-table statistics. Example # Clear the statistics of the IPX static routes. <3Com> reset ipx routing-table statistics protocol static 3.1.28 reset ipx statistics Syntax reset ipx statistics...
  • Page 139 3Com Switch 7750 Series Command Reference Guide — GVRP Commands Chapter 1 GVRP Configuration Commands ... 1-1 1.1 GARP Configuration Commands... 1-1 1.1.1 display garp statistics ... 1-1 1.1.2 display garp timer ... 1-2 1.1.3 garp timer ... 1-2 1.1.4 garp timer leaveall... 1-4 1.1.5 reset garp statistics ...

  • Page 140: Display Garp Statistics

    Number of the GVRP packets transmitted Number of the packets discarded Example # Display the GARP statistics of port Ethernet1/0/1. <3Com> display garp statistics interface Ethernet1/0/1 GARP statistics on port Ethernet1/0/1 Number Of GMRP Frames Received Number Of GVRP Frames Received...

  • Page 141: Display Garp Timer

    Hold timer Related command: garp timer, garp timer leaveall. Example # Display the settings of the GARP timers on port Ethernet1/0/1. <3Com> display garp timer interface Ethernet1/0/1 GARP timers on port Ethernet1/0/1 1.1.3 garp timer Syntax garp timer { hold | join | leave } timer-value...
  • Page 142 3Com Switch 7750 Series Command Reference Guide — GVRP Commands View Ethernet port view Parameter hold: Sets the GARP Hold timer. When a GARP entity receives a piece of registration information, it does not send out a Join message immediately. Instead, to save the...

  • Page 143: Garp Timer Leaveall

    3Com Switch 7750 Series Command Reference Guide — GVRP Commands Timer This greater than or equal to twice the timeout time of the Hold Join timer. You can change the threshold by changing the timeout time of the Hold timer.

  • Page 144: Reset Garp Statistics

    3Com Switch 7750 Series Command Reference Guide — GVRP Commands Also note that this argument needs to be a multiple of 5 and cannot be larger than 32,765. By default, the LeaveAll timer is set to 1,000 centiseconds (that is, 10 seconds).

  • Page 145: Gvrp Configuration Commands

    GVRP registration type of a port Example # Display the GVRP statistics of port Ethernet1/0/1, assuming that the port is a trunk port. <3Com> display gvrp statistics interface Ethernet1/0/1 GVRP statistics on port Ethernet1/0/1 Chapter 1 GVRP Configuration Commands GVRP Status...

  • Page 146: Display Gvrp Status

    3Com Switch 7750 Series Command Reference Guide — GVRP Commands 1.2.2 display gvrp status Syntax display gvrp status View Any view Parameter None Description Use the display gvrp status command to display the global GVRP status (enabled or disabled). Example # Display the global GVRP status.

  • Page 147: Gvrp Registration

    3Com Switch 7750 Series Command Reference Guide — GVRP Commands By default, GVRP is disabled both globally and on ports. Note that: To enable GVRP for a port, you need to enable GVRP globally first. GVRP is disabled on any ports if GVRP is disabled globally. In this case, you cannot enable GVRP for a port.
  • Page 148 3Com Switch 7750 Series Command Reference Guide — GVRP Commands Related command: display gvrp statistics Example # Configure the GVRP registration type on the port Ethernet1/0/1 to fixed. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface Ethernet1/0/1...
  • Page 149 3Com Switch 7750 Series Command Reference Guide — Q-in-Q Commands Chapter 1 Q-in-Q Configuration Commands ... 1-1 1.1 Q-in-Q Configuration Commands ... 1-1 1.1.1 display port vlan-vpn ... 1-1 1.1.2 vlan-vpn enable ... 1-1 1.1.3 vlan-vpn priority ... 1-2 Chapter 2 Selective Q-in-Q Configuration Commands... 2-1 2.1 Selective Q-in-Q Configuration Commands ...

  • Page 150: Chapter 1 Q-In-Q Configuration Commands

    3Com Switch 7750 Series Command Reference Guide — Q-in-Q Commands Chapter 1 Q-in-Q Configuration Commands 1.1 Q-in-Q Configuration Commands 1.1.1 display port vlan-vpn Syntax display port vlan-vpn View Any view Parameter None Description Use the display port vlan-vpn command to display the Q-in-Q configuration of the current system, including the current status of VLAN-VPN and the VLAN ID of VLAN-VPN.

  • Page 151: Vlan-Vpn Priority

    3Com Switch 7750 Series Command Reference Guide — Q-in-Q Commands Description Use the vlan-vpn enable command to enable the Q-in-Q function for a port. Use the undo vlan-vpn command to disable the Q-in-Q function for a port. By default, the Q-in-Q function is disabled.
  • Page 152 3 is tagged with an outer tag with the priority of <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface Ethernet 1/0/1 [3Com-Ethernet1/0/1] vlan-vpn priority 3 remark 5 Chapter 1 Q-in-Q Configuration Commands...

  • Page 153: Chapter 2 Selective Q-In-Q Configuration Commands

    Command Reference Guide — Q-in-Q Commands Chapter 2 Selective Q-in-Q Configuration Note: You can implement traffic-based selective Q-in-Q on an Switch 7750 Series switch by using ACLs and QoS techniques. Refer to the QoS part of this manual for related commands and operations.

  • Page 154: Vlan-Vpn Vid

    VLAN tag. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface Ethernet 1/0/1 [3Com-Ethernet1/0/1] vlan-vpn vid 20 uplink Ethernet 1/0/5 untagged [3Com-Ethernet1/0/1-vid-20] raw-vlan-id inbound 8 to 15 2.1.2 vlan-vpn vid Syntax...
  • Page 155 VLAN tag of the packets. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface Ethernet 1/0/1 [3Com-Ethernet1/0/1] vlan-vpn vid 20 uplink Ethernet 1/0/5 untagged [3Com-Ethernet1/0/1-vid-20] raw-vlan-id inbound 10 Chapter 2 Selective Q-in-Q Configuration Commands...

  • Page 156: Chapter 3 Shared-Vlan Configuration Commands

    3Com Switch 7750 Series Command Reference Guide — Q-in-Q Commands Chapter 3 Shared-VLAN Configuration Commands 3.1 Shared-VLAN Configuration Commands 3.1.1 display shared-vlan Syntax display shared-vlan View Any view Parameter None Description Use the display shared-vlan command to display shared-VLAN configured on all the boards in the system.

  • Page 157: Shared-Vlan Slot

    3Com Switch 7750 Series Command Reference Guide — Q-in-Q Commands Description Use the shared-vlan mainboard command to configure shared-VLAN on an SRPU. Use the undo shared-vlan mainboard command to remove the configuration. By default, no shared-VLAN is configured on the SRPU.
  • Page 158 3Com Switch 7750 Series Command Reference Guide — Q-in-Q Commands Use the undo shared-vlan slot command to remove the configuration. By default, no shared-VLAN is configured on the LPU. Note: You must use a created VLAN as shared-VLAN; otherwise the system gives an error prompt.
  • Page 159 3Com Switch 7750 Series Command Reference Guide — Basic Port Commands Chapter 1 Port Basic Configuration Commands... 1-1 1.1 Port Basic Configuration Commands... 1-1 1.1.1 broadcast-suppression... 1-1 1.1.2 copy configuration ... 1-2 1.1.3 description ... 1-3 1.1.4 display brief interface ... 1-4 1.1.5 display interface ...

  • Page 160: Chapter 1 Port Basic Configuration Commands

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands Chapter 1 Port Basic Configuration Commands 1.1 Port Basic Configuration Commands 1.1.1 broadcast-suppression Syntax broadcast-suppression { ratio | bandwidth bandwidth | pps pps } undo broadcast-suppression View Ethernet port view...

  • Page 161: Copy Configuration

    Command Reference Guide — Basic Port Commands Note: Broadcast suppression is set in different ways for different LPUs of the switch 7750 series: For type-A LPUs, broadcast suppression must be set in VLAN view; for non-type-A LPUs, broadcast suppression must be set in Ethernet port view.

  • Page 162: Description

    # Copy the configuration of Ethernet3/01 to Ethernet3/0/2. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] copy configuration source Ethernet3/0/1 destination Ethernet3/0/2 The operation will be invalid for some special port(s) in the destination port list, such as aggregation port.

  • Page 163: Display Brief Interface

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands Parameter text: Port description, a string of up to 80 characters. Description Use the description command to set a port description string. Use the undo description command to remove the port description string.

  • Page 164: Display Interface

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands This command is similar to the display interface command, but the information it displays is briefer. Note: Currently, for the port types other than Ethernet port, this command only displays the link state, and shows "--"...
  • Page 165 3Com Switch 7750 Series Command Reference Guide — Basic Port Commands View Any view Parameter interface-type: Port type. interface-number: Port number. Description Use the display interface command to display port configuration. When using this command: If you specify neither port type nor port number, the command displays information about all ports.
  • Page 166 3Com Switch 7750 Series Command Reference Guide — Basic Port Commands Input(normal): - broadcasts, - multicasts, - pauses Input: - input errors, 0 runts, - giants, 0 frame, Output(total): 1288 packets, 116919 bytes 0 broadcasts, 886 multicasts, 0 pauses Output(normal): - packets, - bytes...

  • Page 167: Display Loopback-Detection

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands Input(total): 1150 packets, 149854 bytes 542 broadcasts, 55 multicasts, - pauses Input(normal): - packets, - bytes - broadcasts, - multicasts, - pauses Input: - input errors, 0 runts, - giants, 0...

  • Page 168: Display Port

    Example # Display the information about loopback detection on the port and “e” is not included in the interface name. <3Com> display loopback-detection | exclude e Loopback-detection interval time is 30 seconds Interface -------------------------------------------------------------------------- RprGE1/0/1 RprGE1/0/1.1...

  • Page 169: Display Transceiver-Information Interface

    Use the display port display transceiver-information interface command to display information about a specified optical port. Example # Display the information about the optical interface GigabitEthernet1/0/1. <3Com> display transceiver-information interface GigabitEthernet 1/0/1 Hardware Type Interface Type Wave Length(nm) Vendor Name...

  • Page 170: Duplex

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands Table 1-4 describes the fields of the display transceiver-information interface command. Table 1-4 Description on the fields of the display transceiver-information interface command Hardware Type Interface Type Wave Length(nm)

  • Page 171: Flow-Control

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands System View: return to User View with Ctrl+Z. [3Com] interface GigabitEthernet1/0/1 [3Com-GigabitEthernet1/0/1] duplex full 1.1.10 flow-control Syntax flow-control undo flow-control View Ethernet port view Parameter None Description Use the flow-control command to enable flow control on the port so as to avoid packet loss during congestion.

  • Page 172: Flow Interval

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands undo flow-control disable View System view Parameter None Description Use the flow-control enable command to enable flow control globally. Use the flow-control disable command to disable flow control globally.

  • Page 173: Hardspeedup

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands rates in the interval. For example, if you set the interval to 100 seconds, the displayed information is as follows: Last 100 seconds input: Last 100 seconds output: Related command: display interface.

  • Page 174: Interface

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] hardspeedup enable 1.1.14 interface Syntax interface interface-type interface-number View System view Parameter interface-type: Port type, which can be Aux, Ethernet, GigabitEthernet, LoopBack, M-Ethernet, NULL, Tunnel or Vlan-interface.

  • Page 175: Jumboframe Enable

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands 1.1.15 jumboframe enable Syntax jumboframe enable [ jumboframe-value ] undo jumboframe enable View Ethernet port view Parameter jumboframe-value: Size of the permitted jumbo frame, in the range of 1,536 to 9,216 in byte.

  • Page 176: Loopback-Detection Interval-Time

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands Description Use the loopback-detection enable command to enable the loopback detection feature on the port. Use the undo loopback-detection enable command to disable the loopback detection feature on the port.

  • Page 177: Loopback-Detection Control

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands 1.1.18 loopback-detection control Syntax loopback-detection control { block | nolearning | shutdown } undo loopback-detection control View Ethernet port view Parameter block: Specifies to block the port where loop is detected, that is, the port cannot receive or send any packets except BPDU packets.

  • Page 178: Loopback-Detection Per-Vlan Enable

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands 1.1.19 loopback-detection per-vlan enable Syntax loopback-detection per-vlan enable undo loopback-detection per-vlan enable View Ethernet port view Parameter None Description Use the loopback-detection per-vlan enable command to enable loopback detection for all the VLANs on the current trunk port or hybrid port.

  • Page 179: Multicast-Suppression

    Ethernet ports. By default, the port identifies the network type automatically. Caution: The Switch 7750 series supports the auto mode only. If another mode is specified, the system prompts “Operation not supported”. Example # Specify Ethernet1/0/1 to identify the network cable type automatically.
  • Page 180 3Com Switch 7750 Series Command Reference Guide — Basic Port Commands 1 to 100 for 100 Mbps Ethernet ports; 1 to 1,000 Mbps for Gigabit Ethernet ports; 1 to 10,000 Mbps for 10 GE ports. kbps kbps-value: Specifies the maximum bandwidth (in Kbps) for receiving multicast traffic, in the range of 64 to 1,024,000 in the step of 64.

  • Page 181: Port Access Vlan

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands 1.1.22 port access vlan Syntax port access vlan vlan-id undo port access vlan View Ethernet port view Parameter vlan-id: VLAN ID defined in IEEE802.1Q, in the range of 2 to 4,094.

  • Page 182: Port Hybrid Vlan

    Use the undo port hybrid pvid command to restore the default VLAN ID of the hybrid port. Set the default VLAN ID of the local hybrid port to the same value as that of the hybrid port on the peer switch. Otherwise, packets cannot be forwarded properly. Related command: port link-type. Example # Set the default VLAN ID of the hybrid port Ethernet1/0/1 to 100.

  • Page 183: Port Link-Type

    100, with tags assigned to their packets. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface Ethernet1/0/1 [3Com-Ethernet1/0/1] port hybrid vlan 2 4 50 to 100 tagged 1.1.25 port link-type Syntax port link-type { access | hybrid | trunk }...

  • Page 184: Port Monitor Last

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands 1.1.26 port monitor last Syntax port monitor last [ value ] undo port monitor last View Ethernet port view Parameter value: Delay of reporting down state to the system, in the range of 0 to 60. When this argument is set to 0, the port will report its state as soon as it is brought down.

  • Page 185: Port Monitor Last Slot

    # Set the delay of report down state to the system to 10 for the ports on the LPU in slot <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] port monitor last slot 5 10 1.1.28 port trunk permit vlan Syntax...

  • Page 186: Port Trunk Pvid Vlan

    # Add the trunk port Ethernet1/0/1 to VLAN 2, VLAN 4 and VLAN 50 through VLAN 100. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface Ethernet1/0/1 [3Com-Ethernet1/0/1] port trunk permit vlan 2 4 50 to 100 Please wait... Done. # Remove Ethernet1/0/1 form VLAN1. [3Com-Ethernet1/0/1] undo port trunk permit vlan 1 Please wait...

  • Page 187: Reset Counters Interface

    Use the undo port trunk pvid command to restore the default setting. To guarantee the proper packet transmission, the default VLAN ID of the local trunk port must be identical with that of the trunk port on the peer switch connected with the local trunk port.

  • Page 188: Shutdown

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands 1.1.31 shutdown Syntax shutdown undo shutdown View Ethernet port view Parameter None Description Use the shutdown command to disable an Ethernet port. Use the undo shutdown command to enable an Ethernet port.

  • Page 189: Speedup

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands Note: For ports of different types, the parameter prompts after you enter the speed command are also different. Description Use the speed command to set the port speed. Use the undo speed command to restore the port speed to the default setting.

  • Page 190: Unicast-Suppression

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands Note: The commands above are applicable to type-A LPUs only, including 3C16860, 3C16861, 3C16858, and 3C16859. The commands above are diagnostic, so you cannot use them at discretion. Example # Enable the hardware speedup function outside the port.

  • Page 191: Virtual-Cable-Test

    3Com Switch 7750 Series Command Reference Guide — Basic Port Commands Description Use the unicast-suppression command to set the size of unknown unicast traffic allowed to be received on the current port. Use the undo unicast-suppression command to restore the size of unknown unicast traffic allowed to be received on the current port.
  • Page 192 3Com Switch 7750 Series Command Reference Guide — Basic Port Commands Description Use the virtual-cable-test command to enable the system to test the cable connected to a specific port and to display the results. The system can test these attributes of the...
  • Page 193 3Com Switch 7750 Series Command Reference Guide — Basic Port Commands Pair polarity: normal Insertion loss: 7 db Return loss: 7 db Near-end crosstalk: 7 db Chapter 1 Port Basic Configuration Commands 1-34...
  • Page 194 3Com Switch 7750 Series Command Reference Guide — Link Aggregation Chapter 1 Link Aggregation Configuration Commands... 1-1 1.1 Link Aggregation Configuration Commands... 1-1 1.1.1 display lacp system-id ... 1-1 1.1.2 display link-aggregation interface... 1-1 1.1.3 display link-aggregation summary... 1-3 1.1.4 display link-aggregation verbose... 1-4 1.1.5 hash...

  • Page 195: Chapter 1 Link Aggregation Configuration Commands

    3Com Switch 7750 Series Command Reference Guide — Link Aggregation Chapter 1 Link Aggregation Configuration 1.1 Link Aggregation Configuration Commands 1.1.1 display lacp system-id Syntax display lacp system-id View Any view Parameter None Description Use the display lacp system-id command to display the device ID of the local system, including the system priority and the MAC address.
  • Page 196 3Com Switch 7750 Series Command Reference Guide — Link Aggregation View Any view Parameter interface interface-type interface-number [ to Specifies a port range. If the to keyword is not specified, only one port is specified; If the to keyword is specified, multiple contiguous ports are specified;...

  • Page 197: Display Link-Aggregation Summary

    3Com Switch 7750 Series Command Reference Guide — Link Aggregation Table 1-2 Description on the fields of the display link-aggregation interface command Attached AggID Local: Port-Priority: 32768, Oper key: 1, Flag: 0x00 Remote: System ID: 0x0, 0000-0000-0000 Port Number: 0, Port-Priority: 0,...

  • Page 198: Display Link-Aggregation Verbose

    3Com Switch 7750 Series Command Reference Guide — Link Aggregation Partner ID Type ------------------------------------------------------------------- 0x8000,00e0-fcff-ff01 1 none 0x8000,00e0-fcff-ff01 1 Table 1-3 Description on the fields of the display link-aggregation summary command Field Actor ID AL ID AL Type Partner ID...
  • Page 199 3Com Switch 7750 Series Command Reference Guide — Link Aggregation Local end details: device ID, port number, port status, port priority, LACP flag, operation key and connection status; Remote end details: local port, remote port index, remote port priority, operation key, and device ID.

  • Page 200: Hash

    3Com Switch 7750 Series Command Reference Guide — Link Aggregation Field Port state Local Remote 1.1.5 hash Syntax hash { dstip | dstmac | ip | l4port | mac | srcip | srcmac } { ioboard slot slot-number | mainboard }...

  • Page 201: Lacp Enable

    Example # For LPU 2, use the destination IP address as the parameter of the HASH algorithm. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] hash dstip ioboard solt 2 1.1.6 lacp enable Syntax lacp enable undo lacp enable...

  • Page 202: Lacp System-Priority

    3Com Switch 7750 Series Command Reference Guide — Link Aggregation Parameter port-priority-value: Port priority, ranging from 0 to 65,535 and defaulting to 32,768. Description Use the lacp port-priority command to set the priority of the current port. Use the undo lacp port-priority command to restore the default port priority.

  • Page 203: Link-Aggregation

    # Set up an aggregation group with Ethernet1/0/1 to Ethernet1/0/4 and perform load sharing for both inbound and outbound traffic of the aggregation group. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] link-aggregation ethernet1/0/1 to ethernet1/0/4 both 1.1.10 link-aggregation group description Syntax link-aggregation group agg-id description agg-name...

  • Page 204: Link-Aggregation Group Mode

    Example # Set the description "office" for aggregation group 22. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] link-aggregation group 22 description office 1.1.11 link-aggregation group mode Syntax link-aggregation group agg-id mode { manual | static }...

  • Page 205: Port Link-Aggregation Group

    3Com Switch 7750 Series Command Reference Guide — Link Aggregation <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] link-aggregation group 22 mode manual 1.1.12 port link-aggregation group Syntax port link-aggregation group agg-id undo port link-aggregation group View...
  • Page 206 3Com Switch 7750 Series Command Reference Guide — Link Aggregation If the to keyword is not specified, only one port is specified; If the to keyword is specified, multiple contiguous ports are specified; The interface-type argument represents the port type and the interface-num argument represents the port number.
  • Page 207 3Com Switch 7750 Series Command Reference Guide – Port Isolation Chapter 1 Port Isolation Configuration Commands ... 1-1 1.1 Port Isolation Configuration Commands... 1-1 1.1.1 description ... 1-1 1.1.2 display isolate port ... 1-1 1.1.3 port ... 1-2 1.1.4 port isolate... 1-3 1.1.5 port-isolate group ...

  • Page 208: Chapter 1 Port Isolation Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – Port Isolation Chapter 1 Port Isolation Configuration Commands 1.1 Port Isolation Configuration Commands 1.1.1 description Syntax description text undo description View Isolation group view Parameter text: Description string for an isolation group, in the range of 1 character to 80 characters.

  • Page 209: Port

    Description string for the isolation group Ports that the isolation group contains Example # Display the configuration of isolation group 1. <3Com> display isolate port group 1 Isolate group ID: 1 Description: home Isolated port(s) in group 1: GigabitEthernet1/0/3 GigabitEthernet1/0/1 GigabitEthernet1/0/2 1.1.3 port...

  • Page 210: Port Isolate

    3Com Switch 7750 Series Command Reference Guide – Port Isolation This command functions the same as the 1.1.4 port isolate command except that Ethernet ports must be specified in this command. Example # Add GigabitEthernet1/0/1 to isolation group 1. <3Com> system-view System View: return to User View with Ctrl+Z.

  • Page 211: Port-Isolate Group

    3Com Switch 7750 Series Command Reference Guide – Port Isolation <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface gigabitethernet1/0/1 [3Com-GigabitEthernet1/0/1] port isolate group 1 1.1.5 port-isolate group Syntax port-isolate group group-id undo port-isolate group group-id View...
  • Page 212 3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding Chapter 1 Port Security Commands... 1-1 1.1 Port Security Commands... 1-1 1.1.1 display port-security ... 1-1 1.1.2 port-security enable... 1-3 1.1.3 port-security intrusion-mode... 1-4 1.1.4 port-security authorization ignore... 1-6 1.1.5 port-security max-mac-count...

  • Page 213: Chapter 1 Port Security Commands

    3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding Chapter 1 Port Security Commands 1.1 Port Security Commands 1.1.1 display port-security Syntax display port-security [ interface interface-list ] View Any view Parameter interface-list: Ethernet port list, which can contain multiple Ethernet ports. The interface-list argument is in the format of { interface-type interface-number [ to interface-type interface-number ] } &...
  • Page 214 3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding AddressLearn trap is Enabled Intrusion trap is Enabled Dot1x logon trap is Enabled Dot1x logoff trap is Enabled Dot1x logfailure trap is Enabled RALM logon trap is Enabled...

  • Page 215: Port-Security Enable

    3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding Vlan id assigned is NULL Disableport Timeout: 20 s OUI value GigabitEthernet1/0/1 is link-down Port mode is Userlogin NeedtoKnow mode is needtoknowonly Intrusion mode is disableport Max mac-address num is 100...

  • Page 216: Port-Security Intrusion-Mode

    3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding Caution: To avoid confliction, the following restrictions on 802.1x authentication and MAC address authentication occur after port security is enabled: The access control mode (set by the dot1x port-control command) automatically changes to auto.
  • Page 217 3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding Note: If intrusion protection mode is set to disableport-temporarily on the port, the time set by the port-security timer disableport command determines how long the system temporarily disables the port when intrusion protection is triggered on the port.

  • Page 218: Port-Security Authorization Ignore

    3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding [3Com] interface GigabitEthernet1/0/1 # Configure the switch to disable GigabitEthernet1/0/1 when intrusion protection is triggered on the port. [3Com-GigabitEthernet1/0/1] port-security intrusion-mode disableport 1.1.4 port-security authorization ignore Syntax...

  • Page 219: Port-Security Max-Mac-Count

    3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding 1.1.5 port-security max-mac-count Syntax port-security max-mac-count count-value undo port-security max-mac-count View Ethernet port view Parameter count-value: Maximum number of MAC addresses allowed on the port, in the range of 1 to 16,384.
  • Page 220 3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding View Ethernet port view Parameter ntkonly: Allows successfully-authenticated destination MAC addresses. ntk-withbroadcasts: Allows the port to transmit broadcast packets and unicast packets with successfully-authenticated destination MAC addresses.

  • Page 221: Port-Security Oui

    3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding 1.1.7 port-security oui Syntax port-security oui OUI-value index index-value undo port-security oui index id-value View System view Parameter OUI-value: OUI value. You can input a full MAC address (in hexadecimal format) for this argument and the system will calculate the OUI value from your input.

  • Page 222: Port-Security Port-Mode

    MAC addresses, in order for you to implement different network security management as needed. With port security, packets whose source MAC addresses cannot be learned by your switch in a security mode, or packets that fail to pass 802.1x authentication are considered illegal.
  • Page 223 3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding Table 1-2 Description of port security modes Security mode In this mode, the port is disabled from learning MAC addresses. secure Only those packets whose source MAC addresses are static MAC addresses configured can pass through the port.
  • Page 224 3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding Security mode The port is enabled only after an access user passes the 802.1x authentication. When the port is enabled, only the packets of the successfully authenticated user can pass through the port.

  • Page 225: Port-Security Timer Disableport

    3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding Note: When a port works in the userlogin-secure-else-mac-ext mode or the userlogin-secure-else-mac mode, for the same packet, intrusion protection can be triggered only after both MAC authentication and 802.1x authentication fail.

  • Page 226: Port-Security Trap

    3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding Note: After the port-security intrusion-mode disableport-temporarily command is executed on a port, the time set by the port-security timer disableport timer command determines how long the port can be temporarily disabled.
  • Page 227 By default, the system disables the sending of any types of trap messages. Note: This command is based on the device tracking feature, which enables the switch to send trap messages when special data packets (generated by illegal intrusion, abnormal user logon/logoff, or other special activities) are passing through a port, so as to help the network administrator to monitor special activities.

  • Page 228: Chapter 2 Port Binding Commands

    3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding Chapter 2 Port Binding Commands 2.1 Port Binding Commands 2.1.1 am user-bind interface Syntax am user-bind mac-addr mac-address ip-addr ip-address interface interface-type interface-number undo am user-bind mac-addr mac-address ip-addr ip-address interface...

  • Page 229: Am User-Bind

    3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] am user-bind mac-addr 00e0-fc00-5101 ip-addr 10.153.1.1 interface GigabitEthernet1/0/1 2.1.2 am user-bind Syntax am user-bind mac-addr mac-address ip-addr ip-address...

  • Page 230: Display Am User-Bind

    3Com Switch 7750 Series Command Reference Guide – Port Security & Port Binding 2.1.3 display am user-bind Syntax display am user-bind [ interface interface-type interface-number | mac-addr mac-addr | ip-addr ip-addr ] View Any view Parameter interface: Displays binding information on a specified port.
  • Page 231 3Com Switch 7750 Series Command Reference Guide – DLDP Chapter 1 DLDP Configuration Commands... 1-1 1.1 DLDP Configuration Commands ... 1-1 1.1.1 display dldp ... 1-1 1.1.2 dldp... 1-2 1.1.3 dldp authentication-mode... 1-3 1.1.4 dldp interval ... 1-4 1.1.5 dldp reset... 1-5 1.1.6 dldp unidirectional-shutdown...

  • Page 232: Chapter 1 Dldp Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – DLDP Chapter 1 DLDP Configuration Commands 1.1 DLDP Configuration Commands 1.1.1 display dldp Syntax display dldp [ interface-type interface-number ] View Any view Parameter interface-type: Port type. interface-number: Port number. Description Use the display dldp command to display the configuration information, status information and neighbor tables of the DLDP-enabled port.

  • Page 233: Dldp

    3Com Switch 7750 Series Command Reference Guide – DLDP dldp link state : down The neighbor number of the port is 0. interface GigabitEthernet2/0/2 dldp port state : advertisement dldp link state : up The neighbor number of the port is 1.

  • Page 234: Dldp Authentication-Mode

    When you use the dldp enable/dldp disable commands in system view to enable/disable DLDP globally on all optical ports of the switch, these commands are only valid for the existing optical ports on the device, however, they are not valid for those added subsequently.

  • Page 235: Dldp Interval

    3Com Switch 7750 Series Command Reference Guide – DLDP When you configure the DLDP authentication mode and authentication password, make sure the same DLDP authentication mode and password are set for the ports connecting the local and peer devices. Otherwise, DLDP authentication fails. DLDP cannot work when DLDP authentication fails.

  • Page 236: Dldp Reset

    3Com Switch 7750 Series Command Reference Guide – DLDP unidirectional links. On the contrary, if too short an interval is set, network traffic increases, and port bandwidth is reduced. Generally, the STP convergence time is 30 seconds. Example # Set the interval of sending advertisement packets to 20 seconds for all the DLDP-enabled ports.

  • Page 237: Dldp Unidirectional-Shutdown

    3Com Switch 7750 Series Command Reference Guide – DLDP 1.1.6 dldp unidirectional-shutdown Syntax dldp unidirectional-shutdown { auto | manual } undo dldp unidirectional-shutdown View System view Parameter auto: Disables the corresponding port automatically when DLDP detects a unidirectional link. manual: Prompts the user to disable the corresponding port manually instead of disabling the port automatically when DLDP detects an unidirectional link.
  • Page 238 3Com Switch 7750 Series Command Reference Guide – DLDP Parameter enhance: Configures DLDP to work in enhanced mode. In this mode, DLDP probes actively whether neighbors exist when neighbor tables are aging. normal: Configures DLDP to work in normal mode. In this mode, DLDP does not probe actively whether neighbors exist when neighbor tables are aging.
  • Page 239 3Com Switch 7750 Series Command Reference Guide – MAC Address Table Chapter 1 MAC Address Table Configuration Commands ... 1-1 1.1 MAC Address Table Configuration Commands... 1-1 1.1.1 bridgemactocpu... 1-1 1.1.2 display mac-address aging-time ... 1-2 1.1.3 display mac-address ... 1-2 1.1.4 mac-address...

  • Page 240: Chapter 1 Mac Address Table Configuration Commands

    This chapter describes the management of static and dynamic MAC address entries. For information on the management of multicast MAC address entries, refer to the section related to multicast protocol in the 3Com Switch 7750 Series Command Reference Guide. 1.1 MAC Address Table Configuration Commands 1.1.1 bridgemactocpu...

  • Page 241: Display Mac-Address Aging-Time

    3Com Switch 7750 Series Command Reference Guide – MAC Address Table System View: return to User View with Ctrl+Z. [3Com] bridgemactocpu enable 1.1.2 display mac-address aging-time Syntax display mac-address aging-time View Any view Parameter None Description Use the display mac-address aging-time command to display the aging time for the dynamic MAC address entries in the MAC address table.
  • Page 242 <3Com> display mac-address 00e0-fc01-0101 MAC ADDR VLAN ID 0014-222c-9d6a # Display the MAC address entries for the port Ethernet1/0/4. <3Com> display mac-address interface Ethernet 1/0/4 MAC ADDR VLAN ID Chapter 1 MAC Address Table Configuration Value Displays information about a specified MAC address entry.

  • Page 243: Mac-Address

    7 mac address(es) found on port Ethernet1/0/4 --- # Display the total number of MAC address entries found in VLAN 2. <3Com> display mac-address vlan 2 count 9 mac address(es) found in vlan 2 Table 1-2 Description on the fields of the display mac-address command...
  • Page 244 3Com Switch 7750 Series Command Reference Guide – MAC Address Table dynamic: Specifies that the MAC address entry to be added/updated is of dynamic type. mac-address: MAC address. interface-type: Port type. interface-number: Port number. vlan-id: VLAN ID. This argument ranges from 1 to 4094.

  • Page 245: Mac-Address Learning Synchronization

    Outbound port: Ethernet1/0/1 port Ethernet1/0/1 port belongs to VLAN 2. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] mac-address static 00e0-fc01-0101 interface Ethernet 1/0/1 vlan 2 1.1.5 mac-address learning synchronization Syntax mac-address learning synchronization undo mac-address learning synchronization...

  • Page 246: Mac-Address Max-Mac-Count

    3Com Switch 7750 Series Command Reference Guide – MAC Address Table Parameter None Description Use the mac-address mac-learning disable command to disable the current port from learning MAC addresses. Use the undo mac-address mac-learning disable command to re-enable the current port to learn MAC addresses.

  • Page 247: Mac-Address Timer

    Set the aging time for dynamic MAC address entries as required but ensure that the aging time does not decrease the layer 2 packet forwarding performance of the switch. If the aging time is too short, the MAC address entries that are still valid may be removed.
  • Page 248 If the aging time is too long, MAC address entries may still exist even if they turn invalid. This causes the switch to be unable to update its MAC address table in time. In this case, the MAC address table cannot reflect the position changes of network devices in time.
  • Page 249 3Com Switch 7750 Series Command Reference Guide – MSTP Chapter 1 MSTP Configuration Commands ... 1-1 1.1 MSTP Configuration Commands ... 1-1 1.1.1 active region-configuration ... 1-1 1.1.2 check region-configuration ... 1-2 1.1.3 display stp ... 1-3 1.1.4 display stp region-configuration ... 1-5 1.1.5 instance ...
  • Page 250 3Com Switch 7750 Series Command Reference Guide – MSTP 1.1.37 stp root secondary... 1-39 1.1.38 stp root-protection ... 1-40 1.1.39 stp tc-protection... 1-41 1.1.40 stp timer forward-delay... 1-42 1.1.41 stp timer hello ... 1-43 1.1.42 stp timer max-age ... 1-44 1.1.43 stp timer-factor ...

  • Page 251: Chapter 1 Mstp Configuration Commands

    MST region-related settings or enable MSTP, and then the new settings can really take effect. This command causes the switch to operate with the new MST region-related settings you configured and spanning trees to be regenerated. Related command: instance, region-name, revision-level, vlan-mapping modulo, and check region-configuration.

  • Page 252: Check Region-Configuration

    MST region-related settings does not be consistent with that of another switch in the region. You can use this command to find the MST region the switch currently belongs to or check to see whether or not the MST region-related configuration is correct.

  • Page 253: Display Stp

    3Com Switch 7750 Series Command Reference Guide – MSTP Table 1-1 Description on the fields of the check region-configuration command Field Format selector Region name Revision level Instance Vlans Mapped 1.1.3 display stp Syntax display stp [ instance instance-id ] [ interface interface-list | slot slot-number ] [ brief ]...
  • Page 254 BPDUs, the RST BPDUs, and the MST BPDUs transmitted/received by each port. Related command: reset stp. Example # Display the state and statistical information about a spanning tree. <3Com> display stp instance 0 interface Ethernet 1/0/1 to Ethernet 1/0/4 brief MSTID Port Ethernet1/0/1...

  • Page 255: Display Stp Region-Configuration

    3Com Switch 7750 Series Command Reference Guide – MSTP Field Role STP State Protection 1.1.4 display stp region-configuration Syntax display stp region-configuration View Any view Parameter None Description Use the display stp region-configuration command to display the activated MST region configuration, including the region name, region revision level, and spanning tree instance-to-VLAN mappings configured for the switch.

  • Page 256: Instance

    VLAN IDs/VLAN ID ranges for this argument. Normally, a VLAN ID can be a number ranging from 1 to 4094. VLANs with their IDs beyond this range (if the switch supports this kind VLAN IDs), such as VLAN 4095, VLAN 4096, can only be mapped to the CIST (spanning tree instance 0).

  • Page 257: Region-Name

    View MST region view Parameter name: MST region name to be set for the switch, a string of 1 to 32 characters. Description Use the region-name command to set an MST region name for a switch. Use the undo region-name command to revert to the default MST region name.

  • Page 258: Reset Stp

    <3Com> reset stp interface Ethernet 1/0/1 to Ethernet 1/0/3 1.1.8 revision-level Syntax revision-level level undo revision-level View MST region view Parameter level: MSTP revision level to be set for the switch. This argument ranges from 0 to 65,535. Chapter 1 MSTP Configuration Commands...

  • Page 259: Stp

    3Com Switch 7750 Series Command Reference Guide – MSTP Description Use the revision-level command to set the MSTP revision level for a switch. Use the undo revision-level command to revert to the default revision level. By default, the MSTP revision level is 0.

  • Page 260: Stp Bpdu-Protection

    BPDUs deliberately to edge ports to cause network jitter. You can prevent this type of attacks by utilizing the BPDU protection function. With this function enabled on a switch, the switch shuts down the edge ports that Chapter 1 MSTP Configuration Commands...

  • Page 261: Stp Bridge-Diameter

    3Com Switch 7750 Series Command Reference Guide – MSTP receive configuration BPDUs and then reports these cases to the administrator. If a port is shut down, only the administrator can restore it. Example # Enable the BPDU protection function. <3Com> system-view System View: return to User View with Ctrl+Z.

  • Page 262: Stp Config-Digest-Snooping

    BPDUs received from the switch, which will be put in the BPDUs to be send to the peer switch.. In this way, the switch can interwork with the partners' switches in an MST region.

  • Page 263: Stp Cost

    To enable the digest snooping feature, the interconnected switches must be configured with exactly the same MST settings. The digest snooping feature must be enabled on all the switch ports that connect to partners' proprietary protocol-adopted switches in the same MST region.

  • Page 264: Stp Edged-Port

    Use the undo stp cost command to revert to the default path cost of the current port in the specified spanning tree instance. By default, a switch automatically calculates the path costs of a port in different spanning tree instances based on a specified standard.

  • Page 265: Stp Interface

    An edge port is a port that is directly connected to a user terminal instead of another switch or a network segment. Rapid transition is applied to edge ports because, on these ports, no loops can be incurred by network topology changes. You can enable a port to transit to the forwarding state rapidly by setting it to an edge port.

  • Page 266: Stp Interface Config-Digest-Snooping

    Use the stp interface command to enable or disable MSTP on specified ports in system view. By default, MSTP is enabled on the ports of a switch if MSTP is globally enabled on the switch, and is disabled on the ports if MSTP is globally disabled.
  • Page 267 This problem can be overcome by implementing the digest snooping feature. If a port on an Switch 7750 series switch is connected to a partner's switch that has the same MST region-related settings as its own but adopts a proprietary spanning tree protocol, you can enable digest snooping on the port.

  • Page 268: Stp Interface Cost

    Command Reference Guide – MSTP Note: The digest snooping feature is needed only when your Switch 7750 series switch is connected to partner's proprietary protocol-adopted switches. To enable the digest snooping feature successfully, you must first enable it on all the ports of your Switch 7750 series switch that are connected to partner's proprietary protocol-adopted switches and then enable it globally.

  • Page 269: Stp Interface Edged-Port

    Use the undo stp interface cost command to revert to the default path cost(s) of the specified port(s) in the specified spanning tree instance in system view. By default, a switch automatically calculates the path costs of a port in different spanning tree instances based on a specified standard.

  • Page 270: Stp Interface Loop-Protection

    An edge port is a port that is directly connected to a user terminal instead of another switch or a network segment. Rapid transition is applied to edge ports because, on these ports, no loops can be incurred by network topology changes. You can enable a port to transit to the forwarding state rapidly by setting it to an edge port.

  • Page 271: Stp Interface Mcheck

    Example # Enable the loop prevention function on Ethernet1/0/1 port. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] stp interface Ethernet 1/0/1 loop-protection 1.1.20 stp interface mcheck Syntax stp [ interface interface-list ] mcheck View...

  • Page 272: Stp Interface No-Agreement-Check

    A port on an MSTP-enabled switch toggles to the STP-/RSTP-compatible mode automatically if an STP-/RSTP-enabled switch is connected to it. But when the STP-/RSTP-enabled switch is disconnected from the port, the port cannot toggle back to the MSTP mode automatically.

  • Page 273: Stp Interface Point-To-Point

    RSTP in the way to implement rapid transition on designated ports. When a switch of this kind operates as the upstream switch of an Switch 7750 series switch running MSTP, the upstream designated port fails to change their states rapidly.
  • Page 274 Related command: stp point-to-point. Example # Configure the link connected to Ethernet1/0/3 port as a point-to-point link in system view. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] stp interface Ethernet 1/0/3 point-to-point force-true Chapter 1 MSTP Configuration Commands 1-24...

  • Page 275: Stp Interface Port Priority

    CIST. The role a port plays in a spanning tree instance is determined by the port priority in the instance. A port on an MSTP-enabled switch can have different port priorities and play different roles in different MSTIs. This enables packets of different VLANs to be forwarded along different physical paths, so as to achieve load balancing by VLANs.

  • Page 276: Stp Interface Root-Protection

    3Com Switch 7750 Series Command Reference Guide – MSTP 1.1.24 stp interface root-protection Syntax stp interface interface-list root-protection undo stp interface interface-list root-protection View System view Parameter interface-list: Ethernet port list. You can specify multiple Ethernet ports by providing this argument in the form of interface-list = { interface-type interface-number [ to interface-type interface-number ] } &<1-10>, where &<1-10>...

  • Page 277: Stp Interface Transmit-Limit

    Related command: stp transmit-limit. Example # Set the maximum transmitting speed of Ethernet1/0/3 port to 5. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] stp interface Ethernet 1/0/3 transmit-limit 5 Chapter 1 MSTP Configuration Commands 1-27...

  • Page 278: Stp Loop-Protection

    By default, the loop prevention function is disabled. A switch maintains the states of the root port and other blocked ports by receiving and processing BPDUs from the upstream switch. These BPDUs may get lost because of network congestions and link failures.

  • Page 279: Stp Max-Hops

    MST region. With such a mechanism, the maximum hops configured on the switch operating as the root bridge of the CIST or an MSTI in a MST region becomes the network diameter of the spanning tree, which limits the size of the spanning tree in the current MST region.

  • Page 280: Stp Mcheck

    STP enabled downstream switch is then replaced by an MSTP-enabled switch, the port cannot automatically transit to the MSTP mode but remains in the STP-compatible mode. In this case, you can force the port to transit to the MSTP-compatible mode by performing the mCheck operation on the port.

  • Page 281: Stp No-Agreement-Check

    Use the undo stp mode command to revert to the default MSTP operation mode. By default, a switch operates in MSTP mode. To make a switch compatible with STP/RSTP, MSTP provides following three operation modes: STP-compatible mode, where a switch sends out STP BPDU packets...

  • Page 282: Stp Pathcost-Standard

    RSTP in the way to implement rapid transition on designated ports. When a switch of this kind operates as the upstream switch of an Switch 7750 series switch running MSTP, the upstream designated port fails to change their states rapidly.
  • Page 283 Use the undo stp pathcost-standard command to specify to use the default standard. By default, a switch uses the IEEE 802.1t standard to calculate the default path costs of ports.

  • Page 284: Stp Point-To-Point

    3Com Switch 7750 Series Command Reference Guide – MSTP Normally, when a port operates in full-duplex mode, the corresponding path cost is slightly less than that when the port operates in half-duplex mode. When calculating the path cost of an aggregated link, the 802.1D-1998 standard does not take the number of the ports on the aggregated link into account, whereas the 802.1T standard does.

  • Page 285: Stp Port Priority

    3Com Switch 7750 Series Command Reference Guide – MSTP Description Use the stp point-to-point command to specify whether the link connected to the current Ethernet port is a point-to-point link. Use the undo stp point-to-point command to restore the link connected to the current Ethernet port to its default link type, which is automatically determined by MSTP.

  • Page 286: Stp Priority

    Spanning tree instance ID ranging from 0 to 16. A value of 0 specifies the CIST. priority: Switch priority to be set. This argument ranges from 0 to 61,440 and must be a multiple of 4,096 (such as 0, 4,096, and 8,192). There are totally 16 available switch priorities.

  • Page 287: Stp Region-Configuration

    Command Reference Guide – MSTP Description Use the stp priority command to set the priority of the switch in the specified spanning tree instance. Use the undo stp priority command to restore the switch to the default priority in the specified spanning tree instance.

  • Page 288: Stp Root Primary

    You can specify the current switch as the root bridge of a spanning tree instance regardless of the priority of the switch. You can also specify the network diameter of the switched network by using the stp root primary command. The switch will then figure out the following three time parameters: Hello time, Forward delay, and Max age.

  • Page 289: Stp Root Secondary

    Configuring multiple root bridges for a spanning tree instance causes unpredictable spanning tree computing results. Once a switch is configured as the root bridge or a secondary root bridge, its priority cannot be modified. Example # Configure the current switch as the root bridge of spanning tree instance 1, setting the network diameter of the switched network to 4, and the Hello time to 500 centiseconds.

  • Page 290: Stp Root-Protection

    MAC address becomes the root bridge. You can also specify the network diameter and the Hello time of the switch that you are configuring as a secondary root bridge. The switch will then figures out the other two time parameters: Forward delay and Max age.

  • Page 291: Stp Tc-Protection

    3Com Switch 7750 Series Command Reference Guide – MSTP Use the undo stp root-protection command to restore the root protection function to the default state on the current port. By default, the root protection function is disabled. Configuration errors or attacks may result in configuration BPDUs with their priorities higher than that of a root bridge, which causes new root bridge to be elected and network topology jitter to occur.

  • Page 292: Stp Timer Forward-Delay

    A switch removes MAC address entries and ARP entries upon receiving TC-BPDUs. If a malicious user sends a large amount of TC-BPDUs to a switch in a short period, the switch may busy itself in removing MAC address entries and ARP entries, which may decreases the performance and stability of the switch.

  • Page 293: Stp Timer Hello

    A root bridge regularly sends out configuration BPDUs to maintain the existing spanning trees. The Hello time is used to set the sending interval. When a switch becomes a root bridge, it regularly sends BPDUs at the interval specified by the hello time you have configured on it.

  • Page 294: Stp Timer Max-Age

    4,000 and defaults to 2,000. Description Use the stp timer max-age command to set the Max age of the switch. Use the undo stp timer max-age command to revert to the default Max age. MSTP is capable of detecting link problems and automatically restoring redundant links to forwarding state.

  • Page 295: Stp Timer-Factor

    Use the stp timer-factor command to set the timeout time of MSTP protocol packets on a switch in the form of a multiple of the Hello time. For example, with the number argument set to 3, the timeout time is three times of the Hello time.

  • Page 296: Stp Transmit-Limit

    A larger number configured by the stp transmit-limit command allows more configuration BPDUs can be transmitted in each Hello time, which may occupy more switch resources. So configure it to a proper value to avoid MSTP from occupying too many network resources.

  • Page 297: Vlan-Mapping Modulo

    3Com Switch 7750 Series Command Reference Guide – MSTP 1.1.45 vlan-mapping modulo Syntax vlan-mapping modulo modulo View MST region view Parameter modulo: Modulo ranging from 1 to 16. Description Use the vlan-mapping modulo command to map VLANs to specific spanning tree instances.

  • Page 298: Vlan-Vpn Tunnel

    Parameter None Description Use the vlan-vpn tunnel command to enable the BPDU Tunnel function for a switch. Use the undo vlan-vpn tunnel command to disable the BPDU Tunnel function. The BPDU Tunnel function enables BPDUs to be transparently transmitted between geographically dispersed user networks through specified VLAN VPNs in operator’s...
  • Page 299 3Com Switch 7750 Series Command Reference Guide – Routing Protocol Chapter 1 Static Route Configuration Commands ... 1-1 1.1 Routing Table Monitoring Commands ... 1-1 1.1.1 display ip routing-table ... 1-1 1.1.2 display ip routing-table acl... 1-2 1.1.3 display ip routing-table ip-address ... 1-5 1.1.4 display ip routing-table ip-address1 ip-address2 ...
  • Page 300 3Com Switch 7750 Series Command Reference Guide – Routing Protocol 2.1.21 rip work... 2-19 2.1.22 summary... 2-19 2.1.23 timers... 2-20 2.1.24 traffic-share-across-interface ... 2-21 Chapter 3 OSPF Configuration Commands... 3-1 3.1 OSPF Configuration Commands ... 3-1 3.1.1 abr-summary ... 3-1 3.1.2 area ...
  • Page 301 3Com Switch 7750 Series Command Reference Guide – Routing Protocol 3.1.37 ospf timer dead... 3-43 3.1.38 ospf timer hello ... 3-44 3.1.39 ospf timer poll ... 3-45 3.1.40 ospf timer retransmit ... 3-46 3.1.41 ospf trans-delay... 3-46 3.1.42 peer ... 3-47 3.1.43 preference ...
  • Page 302 3Com Switch 7750 Series Command Reference Guide – Routing Protocol 4.1.26 isis timer holding-multiplier... 4-24 4.1.27 isis timer lsp... 4-25 4.1.28 isis timer retransmit ... 4-25 4.1.29 is-level ... 4-26 4.1.30 log-peer-change ... 4-27 4.1.31 md5-compatible... 4-28 4.1.32 network-entity ... 4-28 4.1.33 preference ...
  • Page 303 3Com Switch 7750 Series Command Reference Guide – Routing Protocol 5.1.23 display bgp routing-table peer... 5-24 5.1.24 display bgp routing-table regular-expression ... 5-24 5.1.25 display bgp routing-table statistic ... 5-25 5.1.26 filter-policy export ... 5-26 5.1.27 filter-policy import ... 5-27 5.1.28 group ...
  • Page 304 3Com Switch 7750 Series Command Reference Guide – Routing Protocol Chapter 6 IP Routing Policy Configuration Commands... 6-1 6.1 IP Routing Policy Configuration Commands ... 6-1 6.1.1 apply as-path... 6-1 6.1.2 apply community ... 6-2 6.1.3 apply cost ... 6-3 6.1.4 apply cost-type ...

  • Page 305: Chapter 1 Static Route Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Chapter 1 Static Route Configuration Commands Note: The words “router” covered in the following text represent routers in common sense and Ethernet switches running a routing protocol. To improve readability, this will not be mentioned again in this manual.

  • Page 306: Display Ip Routing-Table Acl

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 2.2.2.1/32 3.3.3.0/24 3.3.3.1/32 4.4.4.0/24 4.4.4.1/32 127.0.0.0/8 127.0.0.1/32 Table 1-1 Description on the fields of the display ip routing-table command Destination/Mask Protocol Cost Nexthop Interface 1.1.2 display ip routing-table acl Syntax...
  • Page 307 Refer to Table 1-1 for the description on the displayed information above. # Display the detailed information about the active and inactive routes filtered by the basic ACL 2000. <3Com> display ip routing-table acl 2000 verbose Routes matched by access-list 2000: Generate Default: no...
  • Page 308 3Com Switch 7750 Series Command Reference Guide – Routing Protocol Field Mask Mask Protocol Routing protocol that detects this route Preference Preference of the route Nexthop Address of the next hop Outbound interface where packets to the destination network segment Interface are forwarded.

  • Page 309: Display Ip Routing-Table Ip-Address

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Field Static Unicast The time that a route exists in the routing table, expressed in the form of hh:mm:ss. Cost Route cost Route tag 1.1.3 display ip routing-table ip-address Syntax...
  • Page 310 <3Com> display ip routing-table 169.253.0.0 Destination/Mask 169.0.0.0/8 # There are corresponding routes in the natural mask range. Display detailed information. <3Com> display ip routing-table 169.0.0.0 verbose Routing Tables: Generate Default: no + = Active Route, - = Last Active, # = Both Summary count:2 **Destination: 169.0.0.0...

  • Page 311: Display Ip Routing-Table Ip-Address1 Ip-Address

    Age: 3:47 Cost: 0/0 # There is no corresponding route in the natural mask range (only the longest matched route is displayed). Display the detailed information. <3Com> display ip routing-table 169.253.0.0 verbose Routing Tables: Generate Default: no + = Active Route, - = Last Active, # = Both Summary count:1 **Destination: 169.0.0.0...

  • Page 312: Display Ip Routing-Table Ip-Prefix

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Display the routing information of destination addresses ranging from 1.1.1.0 to 2.2.2.0. <3Com>display ip routing-table 1.1.1.0 24 2.2.2.0 24 Routing tables: Summary count: 3 Destination/Mask 1.1.1.0/24 1.1.1.1/32 2.2.2.0/24 For detailed description of the output information, see Table 1-1.

  • Page 313: Display Ip Routing-Table Protocol

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] ip ip-prefix abc2 permit 10.1.1.0 24 less-equal 32 [3Com] display ip routing-table ip-prefix abc2 Routes matched by ip-prefix abc2: Summary count: 2 Destination/Mask 10.1.1.0/24...
  • Page 314 Use the display ip routing-table protocol command to display the route information of a specific protocol. Example # Display the summary of all direct-connect routes. <3Com> display ip routing-table protocol direct DIRECT Routing tables: Summary count: 8 DIRECT Routing table status:<active>:...

  • Page 315: Display Ip Routing-Table Radix

    Command Reference Guide – Routing Protocol Summary count: 1 Destination/Mask 100.100.1.1/32 # Display the static routing table. <3Com> display ip routing-table protocol static STATIC Routing tables: Summary count: 1 STATIC Routing tables status:<active>: Summary count: 0 STATIC Routing tables status:<inactive>:...

  • Page 316: Display Ip Routing-Table Statistics

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Table 1-3 Description on the fields of the display ip routing-table radix command INET inodes routes 1.1.8 display ip routing-table statistics Syntax display ip routing-table statistics View Any view Parameter...

  • Page 317: Display Ip Routing-Table Verbose

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol IS-IS OSPF O_ASE O_NSSA AGGRE Total Table 1-4 Description on the fields of the display ip routing-table statistics command Proto route active added deleted Total 1.1.9 display ip routing-table verbose...
  • Page 318 3Com Switch 7750 Series Command Reference Guide – Routing Protocol Then, the statistics of the entire routing table will be output. Finally, the verbose description of each route will be output. The display ip routing-table verbose command can display all current routes, including inactive routes and invalid routes.

  • Page 319: Static Route Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 1.2 Static Route Configuration Commands 1.2.1 delete static-routes all Syntax delete static-routes all View System view Parameter None Description Use the delete static-routes all command to delete all static routes.
  • Page 320 All the packets that fail to find a routing entry will be forwarded through this default route. You cannot configure an interface address of the local switch as the next hop address of a static route.

  • Page 321: Ip Route-Static Default-Preference

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 1.2.3 ip route-static default-preference Syntax ip route-static default-preference default-preference-value undo ip route-static default-preference View System view Parameter default-preference-value: Default precedence of the static routes, in the range of 1 to 255.

  • Page 322: Chapter 2 Rip Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Chapter 2 RIP Configuration Commands Note: The word “router” covered in the following text represent routers in common sense and Ethernet switches running a routing protocol. To improve readability, this will not be mentioned again in this manual.

  • Page 323: Default Cost

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol System View: return to User View with Ctrl+Z. [3Com] rip [3Com-rip] undo checkzero 2.1.2 default cost Syntax default cost value undo default cost View RIP view Parameter value: Default routing cost to be set, ranging from 1 to 16. It is 1 by default.

  • Page 324: Display Rip Routing

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Description Use the display rip command to display the current RIP operation state and RIP configuration. Example # Display the current RIP operation state and configuration. <3Com> display rip RIP is running...
  • Page 325 3Com Switch 7750 Series Command Reference Guide – Routing Protocol View Any view Parameter None Description Use the display rip routing command to display RIP routing information. Example # Display RIP routing table information. <3Com> display rip routing A = Active Destination/Mask 6.0.0.0/8...

  • Page 326: Filter-Policy Export

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 2.1.5 filter-policy export Syntax filter-policy { acl-number | ip-prefix ip-prefix-name } export [ protocol | interface interface-type interface-number ] filter-policy route-policy route-policy-name export undo filter-policy { acl-number | ip-prefix ip-prefix-name } export [ protocol |...

  • Page 327: Filter-Policy Import

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol [3Com] rip [3Com-rip] filter-policy 2000 export 2.1.6 filter-policy import Syntax filter-policy gateway ip-prefix-name import undo filter-policy gateway ip-prefix-name import filter-policy { acl-number | ip-prefix ip-prefix-name [ gateway ip-prefix-name ] |...

  • Page 328: Host-Route

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol You can control the range of routes received by RIP by specifying an ACL, ip-prefix list and routing policies. Related command: acl, filter-policy export, ip ip-prefix. Example # Configure to filter incoming routing information by acl 2000.

  • Page 329: Import-Route

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 2.1.8 import-route Syntax import-route protocol [ cost value | route-policy route-policy-name ]* undo import-route protocol View RIP view Parameter protocol: Source routing protocol whose routes will be imported by RIP. At present, RIP can import the following types of routes: direct, ospf, ospf-ase, ospf-nssa, static, isis and bgp.

  • Page 330: Network

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol [3Com-rip] import-route static cost 4 # Set the default cost and import OSPF routes with the default cost. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] rip...

  • Page 331: Peer

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Related command: rip work. Example # Enable RIP on the interface with the network address 129.102.0.0. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] rip [3Com-rip] network 129.102.0.0 2.1.10 peer...

  • Page 332: Preference

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 2.1.11 preference Syntax preference value undo preference View RIP view Parameter value: Preference level, ranging from 1 to 255. By default, the value is 100. Description Use the preference command to configure the route preference of RIP.

  • Page 333: Rip

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol When you need to re-configure the parameters of RIP, you can use this command to restore the default setting. Example # Reset the RIP system configuration. <3Com> system-view System View: return to User View with Ctrl+Z.

  • Page 334: Rip Authentication-Mode

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol System View: return to User View with Ctrl+Z. [3Com] rip [3Com-rip] 2.1.14 rip authentication-mode Syntax rip authentication-mode { simple password | md5 { rfc2453 key-string | rfc2082 key-string key-id } }...

  • Page 335: Rip Input

    <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface Vlan-interface 10 [3Com-Vlan-interface10] rip version 2 [3Com-Vlan-interface10] rip authentication-mode md5 rfc2453 aaa 2.1.15 rip input Syntax rip input undo rip input...

  • Page 336: Rip Metricin

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol <3Com> system-view System View: return to User View with Ctrl+Z. [3Com]interface Vlan-interface 10 [3Com-Vlan-interface10] undo rip input 2.1.16 rip metricin Syntax rip metricin value undo rip metricin View Interface view Parameter value: Additional route metric added when receiving a RIP route, ranging from 0 to 16.

  • Page 337: Rip Output

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Parameter value: Additional route metric added when transmitting a RIP route, ranging from 1 to 16. By default, the value is 1. Description Use the rip metricout command to configure the additional route metric added to the RIP routes to be transmitted on an interface.

  • Page 338: Rip Split-Horizon

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Use the undo rip output command to disable an interface from transmitting RIP packets. By default, all interfaces except loopback interfaces are enabled to transmit RIP packets to the external.

  • Page 339: Rip Version

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Specify the interface Vlan-interface 10 not to use split horizon when processing RIP packets. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface Vlan-interface 10 [3Com-Vlan-interface10] undo rip split-horizon 2.1.20 rip version...

  • Page 340: Rip Work

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol System View: return to User View with Ctrl+Z. [3Com] interface Vlan-interface 10 [3Com-Vlan-interface10] rip version 2 broadcast 2.1.21 rip work Syntax rip work undo rip work View Interface view Parameter...

  • Page 341: Timers

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol View RIP view Parameter None Description Use the summary command to enable RIP-2 automatic route aggregation. Use the undo summary command to disable RIP-2 automatic route aggregation. By default, RIP-2 route aggregation is enabled.

  • Page 342: Traffic-Share-Across-Interface

    # Set the values of the Period Update timer and the Timeout timer of RIP to 10 seconds and 30 seconds respectively. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] rip [3Com-rip] timers update 10 timeout 30 2.1.24 traffic-share-across-interface Syntax traffic-share-across-interface undo traffic-share-across-interface...
  • Page 343 3Com Switch 7750 Series Command Reference Guide – Routing Protocol Description Use the traffic-share-across-interface command to enable traffic sharing across RIP interfaces, so as to distribute traffic evenly over equal-cost routes across the interfaces on a router. Use the undo traffic-share-across-interface command to cancel traffic sharing.

  • Page 344: Chapter 3 Ospf Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Chapter 3 OSPF Configuration Commands Note: The words “router” covered in the following text represent routers in common sense and Ethernet switches running a routing protocol. To improve readability, this will not be mentioned again in this manual.

  • Page 345: Area

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol route aggregation. You can configure multiple aggregation routes in an area so that OSPF can aggregate multiple network segments. Example # Aggregate the routes in the two network segments, 36.42.10.0 and 36.42.110.0, in OSPF area 1 into one summary route 36.42.0.0 and transmit it to other areas.

  • Page 346: Asbr-Summary

    Type-5 LSAs transformed from Type-7 LSAs. If the router is not the router in the NSSA, the aggregation is disabled. Related command: display ospf asbr-summary. Example # Set aggregation of routes imported by the router 3Com. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] ospf 1 [3Com-ospf-1] asbr-summary 10.2.0.0 255.255.0.0 not-advertise...

  • Page 347: Authentication-Mode

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 3.1.4 authentication-mode Syntax authentication-mode { simple | md5 } undo authentication-mode View OSPF Area view Parameter simple: Uses simple text authentication mode. md5: Uses MD5 cipher text authentication mode. Description Use the authentication-mode command to configure one area of OSPF to support the authentication attribute.

  • Page 348: Default Cost

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 3.1.5 default cost Syntax default cost value undo default cost View OSPF view Parameter value: Default routing cost of external route imported by OSPF, ranging from 0 to 16,777,214. By default, its value is 1.

  • Page 349: Default Limit

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Parameter seconds: Default interval, in seconds, of importing external routes. It ranges from 1 to 2147483647 and defaults to 1. Description Use the default interval command to configure the default interval for OSPF to import external routes.

  • Page 350: Default Tag

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol device. Therefore, it is necessary to limit the number of external routes imported during each import interval. Related command: default interval. Example # Specify the default limit on the number of external routes imported by OSPF in each import interval as 200.

  • Page 351: Default Type

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 3.1.9 default type Syntax default type { 1 | 2 } undo default type View OSPF view Parameter type 1: External routes of type 1. type 2: External routes of type 2.

  • Page 352: Default-Route-Advertise

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Parameter value: Cost value of the default route transmitted by OSPF to the STUB or NSSA area. It ranges from 0 to 16,777,214 and defaults to 1. Description Use the default-cost command to configure the cost of the default route transmitted by OSPF to the STUB or NSSA area.
  • Page 353 3Com Switch 7750 Series Command Reference Guide – Routing Protocol Parameter always: Generates an ase lsa describing the default route and advertises it if the local router is not configured with the default route. If this keyword is not provided, the local router must be configured with the default route before it can import the ase lsa, which generates the default route.

  • Page 354: Display Ospf Abr-Asbr

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 3.1.12 display ospf abr-asbr Syntax display ospf [ process-id ] abr-asbr View Any view Parameter process-id: OSPF Process ID, in the range of 1 to 65,535. If you do not specify a process ID, this command applies to all current OSPF processes.
  • Page 355 3Com Switch 7750 Series Command Reference Guide – Routing Protocol View Any view Parameter process-id: OSPF Process ID, in the range of 1 to 65,535. If you do not specify a process ID, this command applies to all current OSPF processes.

  • Page 356: Display Ospf Brief

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Table 3-2 Description on the fields of the display ospf asbr-summary command. Field mask status 3.1.14 display ospf brief Syntax display ospf [ process-id ] brief View Any view Parameter process-id: OSPF Process ID, in the range of 1 to 65,535.
  • Page 357 3Com Switch 7750 Series Command Reference Guide – Routing Protocol Area 0.0.0.0: Authtype: none SPF scheduled: <Router Net Intra> Interface: 110.1.1.1 (Vlan-interface110) Cost: 11 State: DR Priority: 11 Designated Router: 110.1.1.1 Backup Designated Router: 110.1.1.2 Timers: Hello 10, Dead 40, Poll 40, Retransmit 5, Transmit Delay 1...

  • Page 358: Display Ospf Cumulative

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Field Timers Transmit Delay 3.1.15 display ospf cumulative Syntax display ospf [ process-id ] cumulative View Any view Parameter process-id: OSPF Process ID, in the range of 1 to 65,535. If you do not specify a process ID, this command applies to all current OSPF processes.

  • Page 359: Display Ospf Error

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol LSAs Originated: 146 Area 0.0.0.0: Neighbors: 4 Spf: 163 Checksum Sum 3C60A5F8 rtr: 105 net: 187 sumasb: 0 sumnet: 30500 Routing Table: Intra Area: 8 Table 3-4 Description on the fields of the display ospf cumulative command...
  • Page 360 3Com Switch 7750 Series Command Reference Guide – Routing Protocol View Any view Parameter process-id: OSPF Process ID, in the range of 1 to 65,535. If you do not specify a process ID, this command applies to all current OSPF processes.
  • Page 361 3Com Switch 7750 Series Command Reference Guide – Routing Protocol Field OSPF: wrong version OSPF: wrong checksum OSPF: wrong area id OSPF: area mismatch OSPF: wrong virtual link OSPF: wrong authentication type OSPF: wrong authentication OSPF: too small packet OSPF: packet size > ip length...

  • Page 362: Display Ospf Interface

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Field LS REQ: neighbor state low LS REQ: empty request LS REQ: wrong request LS UPD: neighbor state low LS UPD: newer self-generate LS UPD: LSA checksum wrong LS UPD:received less recent...
  • Page 363 If the verbose keyword is provided, the detailed information about the OSPF interface is displayed. Example # Display the OSPF interface information of Vlan-interface1. <3Com> display ospf interface vlan-interface 1 OSPF Process 1 with Router ID 1.1.1.1 Interfaces Interface: 10.110.10.2 (Vlan-interface1)

  • Page 364: Display Ospf Lsdb

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Table 3-6 Description on the fields of the display ospf interface command Field Cost State Type Priority Designated Router Backup Designated Router Timers Transmit Delay 3.1.18 display ospf lsdb Syntax...
  • Page 365 3Com Switch 7750 Series Command Reference Guide – Routing Protocol asbr: Displays the brief information about Type-4 LSAs (summary-Asbr-LSAs) advertised by ASBR routers in the LSDB. ase: Displays the brief information about the Type-5 LSAs (AS-external-LSAs) in the LSDB. This argument is unavailable if you have provided a value for area-id.
  • Page 366 3Com Switch 7750 Series Command Reference Guide – Routing Protocol SNet 10.153.17.0 2.2.2.2 AS External Database: Type LinkState ID 10.153.18.0 10.153.16.0 10.153.17.0 10.153.17.0 Table 3-7 Description on the fields of the display ospf lsdb command Type LinkStateID AdvRouter Sequence Metric Where <3Com>...

  • Page 367: Display Ospf Nexthop

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Table 3-8 Description on the fields of the display ospf lsdb ase command type ls id adv rtr ls age seq# chksum Options Net mask E type Forwarding Address 3.1.19 display ospf nexthop...

  • Page 368: Display Ospf Peer

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Next hops: Address Type --------------------------------------------------------------- 202.38.160.1 Direct 202.38.160.2 Neighbor 1 Table 3-9 Description on the fields of the display ospf nexthop command Field Address Type Refcount Intf Addr Intf Name nexthop 3.1.20 display ospf peer...
  • Page 369 3Com Switch 7750 Series Command Reference Guide – Routing Protocol Area 0.0.0.0 interface 10.153.17.88(Vlan-interface1)'s neighbor(s) RouterID: 2.2.2.2 State: Full DR: 10.153.17.89 Dead timer expires in 31s Neighbor has been up for 01:14:14 Table 3-10 Description on the fields of the display ospf peer command...

  • Page 370: Display Ospf Request-Queue

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Field Attempt Init 2-Way ExStart Exchange Loading Full 3.1.21 display ospf request-queue Syntax display ospf [ process-id ] request-queue View Any view Parameter process-id: OSPF Process ID, in the range of 1 to 65,535. If you do not specify a process ID, this command applies to all current OSPF processes.

  • Page 371: Display Ospf Retrans-Queue

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Display the information about the OSPF request-queue. <3Com> display ospf request-queue The Router's Neighbor is RouterID: 10.1.1.1 Interface: 120.1.1.2 Request list: LSID:151.14.83.0 LSID:151.10.91.0 Table 3-12 Description on the fields of the display ospf request-queue command...

  • Page 372: Display Ospf Routing

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Description Use the display ospf retrans-queue command to display the information about the OSPF retransmission queue. Example # Display the information about the OSPF retransmission queue. <3Com> display ospf retrans-queue The Router's Neighbors is RouterID: 162.162.162.162 Address: 103.169.2.2...

  • Page 373: Display Ospf Vlink

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Description Use the display ospf routing command to display the information about OSPF routing table. Example # Display OSPF routing information. <3Com> display ospf routing Routing for Network Destination 10.110.0.0/16 10.10.0.0/16...
  • Page 374 3Com Switch 7750 Series Command Reference Guide – Routing Protocol Parameter process-id: OSPF Process ID, in the range of 1 to 65,535. If you do not specify a process ID, this command applies to all current OSPF processes. Description Use the display ospf vlink command to display the information about OSPF virtual links.

  • Page 375: Filter-Policy Export

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 3.1.25 filter-policy export Syntax filter-policy { acl-number | ip-prefix ip-prefix-name } export [ protocol ] undo filter-policy { acl-number | ip-prefix ip-prefix-name} export [ protocol ] View OSPF view Parameter acl-number: Basic or advanced ACL number, in the range of 2,000 to 3,999.

  • Page 376: Filter-Policy Import

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol [3Com-acl-basic-2000] rule deny source any [3Com-ospf-1] filter-policy 2000 export 3.1.26 filter-policy import Syntax filter-policy { acl-number | ip-prefix ip-prefix-name | gateway prefix-list-name } import undo filter-policy { acl-number | ip-prefix ip-prefix-name | gateway ip-prefix-name }...

  • Page 377: Import-Route

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Filter the received routing information according to the rule defined by ACL 2000. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] acl number 2000 [3Com-acl-basic-2000] rule permit source 20.0.0.0...

  • Page 378: Network

    # Configure to import RIP routes as type-2 routes, with the route tag of 33 and the route cost of 50. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] ospf 1 [3Com-ospf-1] import-route rip type 2 tag 33 cost 50 3.1.28 network Syntax network ip-address ip-mask undo network ip-address ip-mask...

  • Page 379: Nssa

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Specify the interfaces whose master IP addresses are in the segment range of 10.110.36.0 to run OSPF and specify the number of the OSPF area (where these interfaces reside) as 6.

  • Page 380: Ospf

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Configure area 1 as NSSA area. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] ospf 1 [3Com-ospf-1] area 1 [3Com-ospf-1-area-0.0.0.1] network 36.0.0.0 0.255.255.255 [3Com-ospf-1-area-0.0.0.1] nssa 3.1.30 ospf...

  • Page 381: Ospf Authentication-Mode

    # Configure area 1 where the network segment 131.119.0.0 of interface Vlan-interface 10 resides to support MD5 cipher text authentication. Set the authentication key identifier to 15 and the authentication key to 3Com. <3Com> system-view Chapter 3 OSPF Configuration Commands...

  • Page 382: Ospf Cost

    Use the ospf cost command to configure the cost for running OSPF on the interface. Use the undo ospf cost command to restore the default costs. For the switch, the default cost for running OSPF protocol on a VLAN interface is 1. Example # Specify the cost spent when an interface runs OSPF as 33.

  • Page 383: Ospf Mib-Binding

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Parameter dr-priority-value: Interface priority for electing the "designated router", ranging from 0 to 255. The default value is 1. Description Use the ospf dr-priority command to configure the priority for electing the "designated router"...

  • Page 384: Ospf Mtu-Enable

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Bind MIB operation to OSPF process 100. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] ospf mib-binding 100 # Bind MIB operation to OSPF process 200.

  • Page 385: Ospf Network-Type

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Configure interface Vlan-interface 3 to write MTU value area when sending DD packets. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface Vlan-interface 3 [3Com-Vlan-interface3] ospf mtu-enable 3.1.36 ospf network-type...

  • Page 386: Ospf Timer Dead

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol If there is any router not supporting multicast addresses on a broadcast network, the network type of the interface can be changed to NBMA. Alternatively, the network type of the interface can be changed from NBMA to broadcast.

  • Page 387: Ospf Timer Hello

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Use the undo ospf timer dead command to restore the default value of the dead interval of the peer. By default, the dead interval is 40 seconds for the OSPF peers of p2p and broadcast interfaces and is 120 seconds for those of p2mp and nbma interfaces.

  • Page 388: Ospf Timer Poll

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Configure the interval of transmitting Hello messages on the interface Vlan-interface 10 to 20 seconds. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface Vlan-interface 10 [3Com-Vlan-interface10] ospf timer hello 20 3.1.39 ospf timer poll...

  • Page 389: Ospf Timer Retransmit

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 3.1.40 ospf timer retransmit Syntax ospf timer retransmit interval undo ospf timer retransmit View Interface view Parameter interval: Interval, in seconds, for retransmitting LSA on an interface. It ranges from 1 to 3600 and defaults to 5.

  • Page 390: Peer

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol View Interface view Parameter seconds: LSA transmission delay on an interface. It ranges from 1 to 3,600 and defaults to 1 (in seconds). Description Use the ospf trans-delay command to configure the LSA transmission delay on an interface.

  • Page 391: Preference

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Description Use the peer command to configure the IP address of the neighbor router and specify DR priority on an NBMA network. Use the undo peer command to cancel this configuration.

  • Page 392: Protocol Multicast-Mac Enable

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol System View: return to User View with Ctrl+Z. [3Com] ospf 1 [3Com-ospf-1] preference ase 160 3.1.44 protocol multicast-mac enable Syntax protocol multicast-mac enable undo protocol multicast-mac enable View System view...

  • Page 393: Reset Ospf

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Disable protocol multicast MAC address delivery in the system. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com]undo protocol multicast-mac enable 3.1.45 reset ospf Syntax reset ospf [ statistics ] { all | process-id }...

  • Page 394: Router Id

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 3.1.46 router id Syntax router id router-id undo router id View System view Parameter router-id: Router ID, in dotted decimal notation, in the range of 0 to 255. Description Use the router id command to configure the ID of a router running the OSPF protocol.

  • Page 395: Silent-Interface

    To prevent the router on some network from receiving the OSPF routing information, you can use this command to disable this interface from transmitting OSPF packet. On the switch, this command can be used to enable/disable OSPF packet transmission through the specified VLAN interface.

  • Page 396: Spf-Schedule-Interval

    This command does not apply to the OSPF processes that are started after the command is executed. By default, the switch does not send TRAP packets in case of OSPF anomalies. For detailed configuration of SNMP TRAP, refer to section "System Management" in this manual.

  • Page 397: Stub

    Example # Set the OSPF route calculation interval of 3Com to 6 seconds. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] ospf 1 [3Com-ospf-1] spf-schedule-interval 6 3.1.50 stub...
  • Page 398 3Com Switch 7750 Series Command Reference Guide – Routing Protocol specify the no-summary argument in the stub command to disable the receiving of type-3 LSAs by the stub area connected to the ABR. Related command: default-cost. Example # Set the type of OSPF area 1 to STUB.
  • Page 399 # Create a virtual link to 10.110.0.3 and use the MD5 cipher authentication mode. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] ospf 1 [3Com-ospf-1] area 10.0.0.0 [3Com-ospf-1-area-10.0.0.0] vlink-peer 10.110.0.3 md5 3 345 Chapter 3 OSPF Configuration Commands characters. When configuring...

  • Page 400: Chapter 4 Integrated Is-Is Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Chapter 4 Integrated IS-IS Configuration Note: The router in this document refers to a generic router and an Ethernet switch running routing protocols. 4.1 Integrated IS-IS Configuration Commands 4.1.1 area-authentication-mode...

  • Page 401: Cost-Style

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Description Use the area-authentication-mode command to configure IS-IS to authenticate the packets (LSP, CSNP and PSNP) received from level-1 route using the predefined mode and password. Use the undo area-authentication-mode command to disable IS-IS from authenticating the received packets above.

  • Page 402: Default-Route-Advertise

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol wide-compatible: Specifies to receive both narrow and wide packets, but send only wide packets. relax-spf-metric: Specifies to allow receiving routes with cost bigger than 1,024. If this keyword is not configured, any route with cost larger than 1,024 will be dropped.

  • Page 403: Display Isis Brief

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol This command can be executed on L1 routers or L2 routers. Defaults routes are generated in L2 LSP by default. Carrying out the apply isis level-1 command in routing policy view will generate default routes in L1 LSP. Carrying out the apply isis level-2 command in routing policy view will generate default routes in L2 LSP.

  • Page 404: Display Isis Interface

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol interval between SPFs: 4.1.5 display isis interface Syntax display isis interface [ verbose ] View Any view Parameter verbose: Displays the detailed information about the interface. Description Use the display isis interface command to view the information about the IS-IS-enabled interfaces.

  • Page 405: Display Isis Lsdb

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 4.1.6 display isis lsdb Syntax display isis lsdb [ [ l1 | l2 | level-1 | level-2 ] | [ [ lsp-id | local ] | verbose ]* ]* View...

  • Page 406: Display Isis Peer

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol You can use this command to view the mesh-group configuration of the current routing interface. Example # Configure the IS-IS-enabled Vlan-interface 10 and Vlan-interface 20 of the router to belong to mesh group 100.

  • Page 407: Display Isis Route

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol System ID Interface 0000.0000.6502 Vlan-interface1001 0001.0000.6506.02 Up Area Address: # Display the information about IS-IS neighbors. <3Com> display isis peer System ID Interface 0000.0000.6502 Vlan-interface1000 0000.0000.6502.02 Up 9s 0000.0000.6502 Vlan-interface1001 0001.0000.6506.02 Up 24s 4.1.9 display isis route...
  • Page 408 3Com Switch 7750 Series Command Reference Guide – Routing Protocol I 133.1.0.0/16 I 135.1.0.0/16 D 145.1.0.0/16 4.1.10 display isis spf-log Syntax display isis spf-log View Any view Parameter None Description Use the display isis spf-log command to display the log record of IS-IS SPF calculation.

  • Page 409: Domain-Authentication-Mode

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol IS_SPFTRIG_NEWADJ IS_SPFTRIG_NEWADJ IS_SPFTRIG_NEWADJ IS_SPFTRIG_CIRC_DOWN IS_SPFTRIG_CIRC_UP 4.1.11 domain-authentication-mode Syntax domain-authentication-mode { simple | md5 } password [ ip | osi ] undo domain-authentication-mode { simple | md5 } [ ip | osi ]...

  • Page 410: Filter-Policy Export

    Related command: area-authentication-mode, and isis authentication-mode. Example # Use the simple mode and set the password to 3Com to authenticate level-2 routing packets. <3Com> system-view System View: return to User View with Ctrl+Z.

  • Page 411: Filter-Policy Import

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Note: The filter-policy export command takes effect only on the routes imported through the import-route command. If the filter-policy export command is configured while the import-route command is not configured to import other non-IS-IS routes, the filter-policy export command does not take effect.

  • Page 412: Ignore-Lsp-Checksum-Error

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Use ACL 2000 to filter the received routes. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] isis [3Com-isis] filter-policy 2000 import 4.1.14 ignore-lsp-checksum-error Syntax ignore-lsp-checksum-error...

  • Page 413: Import-Route

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 4.1.15 import-route Syntax import-route protocol [ cost value | type { external | internal } | [ level-1 | level-1-2 | level-2 ] | route-policy route-policy-name ]* undo import-route protocol [ cost value | type { external | internal } | [ level-1 |...

  • Page 414: Import-Route Isis Level-2 Into Level-1

    # Set the router to penetrate routes from Level-2 to Level-1 through ACL. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] isis [3Com-isis] import-route isis level-2 into level-1 acl 2100 4.1.17 isis Syntax isis [ tag ]...

  • Page 415: Isis Authentication-Mode

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol View System view Parameter tag: Name of an IS-IS routing process, consisting of no more than 128 characters. Its length can be 0, that is, the tag argument can be null.
  • Page 416 # Set the plain password as tangshi for Level-1 adjacency on Vlan-interface 10. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface Vlan-interface 10 [3Com-Vlan-interface10] isis authentication-mode simple tangshi level-1 Chapter 4 Integrated IS-IS Configuration Commands 4-17...

  • Page 417: Isis Circuit-Level

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 4.1.19 isis circuit-level Syntax isis circuit-level [ level-1 | level-1-2 | level-2 ] undo isis circuit-level View Interface view Parameter level-1: Specifies to set up only level-1 adjacency for the interface.

  • Page 418: Isis Cost

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 4.1.20 isis cost Syntax isis cost value [ level-1 | level-2 ] undo isis cost [ level-1 | level-2 ] View Interface view Parameter value: Specifies the link cost value for corresponding SPF calculation, in the range of 0 to 63.

  • Page 419: Isis Enable

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Parameter value: Specifies the priority for selecting DIS, ranging from 0 to 127, with the default as level-1: Specifies the priority for selecting level-1 DIS. level-2: Specifies the priority for selecting level-2 DIS.

  • Page 420: Isis Mesh-Group

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Use the undo isis enable command to disable this configuration. The interface does not enable the IS-IS routing process by default. Before running IS-IS protocol normally, you must use the isis command to enable...

  • Page 421: Isis Timer Csnp

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol After an interface is added to a mesh group, it will only flood a received LSP to interfaces not belonging to the same mesh group. When you add an interface to a mesh group or block the interface, make sure to retain some redundancy so that a link failure will not affect the normal LSP packet flooding.

  • Page 422: Isis Timer Hello

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol System View: return to User View with Ctrl+Z. [3Com] interface Vlan-interface 10 [3Com-Vlan-interface10] isis timer csnp 15 level-2 4.1.25 isis timer hello Syntax isis timer hello seconds [ level-1 | level-2 ]...

  • Page 423: Isis Timer Holding-Multiplier

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 4.1.26 isis timer holding-multiplier Syntax isis timer holding-multiplier value [ level-1 | level-2 ] undo isis timer holding-multiplier [ level-1 | level-2 ] View Interface view Parameter value: Number of invalid Hello packets of an IS-IS neighbor, in the range of 3 to 1,000.

  • Page 424: Isis Timer Lsp

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol [3Com] interface Vlan-interface 10 [3Com-Vlan-interface10] isis timer holding-multiplier 5 4.1.27 isis timer lsp Syntax isis timer lsp time undo isis timer lsp View Interface view Parameter time: Minimum time interval in millisecond for sending link-state packets, ranging from 1 to 1000, with the default as 33 milliseconds.

  • Page 425: Is-Level

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Description Use the isis timer retransmit command to configure the time interval for retransmitting LSP packets over point-to-point link. Use the undo isis timer retransmit command to resume the default configuration.

  • Page 426: Log-Peer-Change

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol It is recommended to configure system level when you configure IS-IS. You can configure all the routers as either Level-1 or Level-2 if there is only one area, because there is no need for all routers to maintain two identical databases at the same time.

  • Page 427: Md5-Compatible

    Use the undo md5-compatible command to specify IS-IS to adopt the default MD5 algorithm. By default, IS-IS adopt the MD5 algorithm compatible with 3Com. This command must be configured when the switch needs to perform IS-IS MD5 authentication with the devices of manufacturers except 3Com.

  • Page 428: Preference

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Parameter network-entity-title: Network entity title in the form of X…X.XXXX...XXXX.00, with the 12 “X” in the middle as system ID of the router, the last “00” as the SEL and the "X…X"...

  • Page 429: Reset Isis All

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol clns: IS-IS routing preference based on OSI protocol stack, in the range of 1 to 1,255. It is IP-based preference by default. ip: IS-IS routing preference based on IP protocol stack, in the range of 1 to 255.

  • Page 430: Reset Isis Peer

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol <3Com> reset isis all 4.1.35 reset isis peer Syntax reset isis peer system-id View User view Parameter system-id: System ID for an IS-IS peer, in the range of one bit to 128 bits.

  • Page 431: Silent-Interface

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol When the overload flag is set for a router, the routes calculated by the router will be ignored by other routes when they calculate SPF. (But the routes directly connected to the router will not be ignored.)

  • Page 432: Spf-Delay-Interval

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 4.1.38 spf-delay-interval Syntax spf-delay-interval number undo spf-delay-interval View IS-IS view Parameter number: Interval of releasing CPU during routing calculation, in the range of 1,000 routes to 50,000 routes. It is 5,000 routes by default.
  • Page 433 3Com Switch 7750 Series Command Reference Guide – Routing Protocol View IS-IS view Parameter seconds: Duration time in milliseconds during SPF calculation, ranging from 150 to 50,000. A calculation is ended when the duration time is reached or exceeded. If the second argument is set to 0, then the SPF calculation will continue until it finishes.

  • Page 434: Timer Lsp-Max-Age

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol level-1-2: Specifies to summarize all the routes imported to level-1 area and backbone area. level-2: Specifies to summarize only the routes imported to backbone area. If none of the level-1 keyword, level-2 keyword, and level-1-2 keyword is specified, the routes imported to backbone area are summarized.

  • Page 435: Timer Lsp-Refresh

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol When the router generates system LSPs, the LSPs are generated with the maximum valid time in them. When a LSP is received by other routers, the maximum valid time will be smaller and smaller. If the maximum valid time decreases to 0, this LSP will be removed from LSDB.

  • Page 436: Timer Spf

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 4.1.43 timer spf Syntax timer spf seconds [ level-1 | level-2 ] undo timer spf [ level-1 | level-2 ] View IS-IS view Parameter seconds: Maximum time interval (in seconds) for SPF calculation, ranging from 1 to 120, with the default as 10.

  • Page 437: Chapter 5 Bgp Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Chapter 5 BGP Configuration Commands Note: Routers in this manual refer to common routers or Ethernet switches that run routing protocols, unless otherwise specified. 5.1 BGP Configuration Commands Note: For the commands defining routing policies in BGP, refer to the next chapter “IP Routing Policy Configuration Commands".
  • Page 438 3Com Switch 7750 Series Command Reference Guide – Routing Protocol origin-policy route-policy-name: Selects the original routes used for aggregation. attribute-policy route-policy-name: Sets the attributes of the aggregated route. The length of route-policy-name parameter ranges from 1 to 16 character string.

  • Page 439: Bgp

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 5.1.2 bgp Syntax bgp as-number undo bgp [ as-number ] View System view Parameter as-number: Specified local AS number, in the range of 1 to 65535. Description Use the bgp command to enable BGP and enter the BGP view.

  • Page 440: Compare-Different-As-Med

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Use the undo balance command to cancel the load balance configuration. Example # Configure BGP load balance. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] bgp 100 [3Com-bgp] balance 5.1.4 compare-different-as-med...

  • Page 441: Confederation Id

    9 is a unified AS domain. The following gives an example of the configuration of AS <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] bgp 41 [3Com-bgp] confederation id 9 [3Com-bgp] confederation peer-as 38 39 40 [3Com-bgp] group Confed38 external [3Com-bgp] peer Confed38 as-number 38 Chapter 5 BGP Configuration Commands...

  • Page 442: Confederation Nonstandard

    By default, the configured confederations are in compliance with RFC1965. For the communication with nonstandard devices, you must execute the confederation nonstandard command on all the 3Com routers in the confederation. Related command: confederation id and confederation peer-as. Example # AS100 contains routers following nonstandard, which is composed of two sub-ASs, 64000 and 65000.
  • Page 443 3Com Switch 7750 Series Command Reference Guide – Routing Protocol undo confederation peer-as [ as-number-list ] View BGP view Parameter as-number-list: List of sub-AS numbers. A maximum of 32 sub-ASs can be configured for a confederation in the command. Description Use the confederation peer-as command to configure a confederation consisting of which Sub-ASs.

  • Page 444: Default Local-Preference

    Example #Configure BGP route dampening parameters. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] bgp 100 [3Com-bgp] dampening 15 15 1000 2000 10000 5.1.9 default local-preference Syntax default local-preference value undo default local-preference View...

  • Page 445: Default Med

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Parameter value: Default local preference to be configured. The range is 0 to 4294967295. By default, its value is 100. Description Use the default local-preference command to configure the default local preference.

  • Page 446: Display Bgp Group

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Set the MED value to “25”.. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com-bgp] default med 25 5.1.11 display bgp group Syntax display bgp [ multicast ] group [ group-name ]...

  • Page 447: Display Bgp Network

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Table 5-2 Description on fields of the display bgp group command Field Group type as-number members in this group route-policy filter-policy ip-prefix default route produce 5.1.12 display bgp network Syntax...

  • Page 448: Display Bgp Paths

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Table 5-3 Description on fields of the display bgp network command Field Network Mask Route-policy 5.1.13 display bgp paths Syntax display bgp paths as-regular-expression View Any view Parameter as-regular-expression: Matched AS path regular expression.

  • Page 449: Display Bgp Peer

    Use the display bgp peer command to display the information about the specified BGP peer. Example # Display detailed information of the peer 10.110.25.20. <3Com> display bgp peer 10.110.25.20 verbose Peer: 10.110.25.20 Local: Unspecified Type: External State: Idle Last State: NoState Last Error: None Options: <>...

  • Page 450: Display Bgp Routing-Table

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol no export policy ip-prefix no export policy filter-policy no export policy acl no import policy route-policy no import policy ip-prefix no import policy filter-policy no import policy acl no default route produce...
  • Page 451 3Com Switch 7750 Series Command Reference Guide – Routing Protocol Description Use the display bgp routing-table command to display all the BGP routing information. Example # Display all the BGP routing information. <3Com> display bgp routing-table Flags: # - valid...

  • Page 452: Display Bgp Routing-Table As-Path-Acl

    Specifies multicast address family. Description Use the display bgp routing-table as-path-acl command to view routes that match an as-path acl. Example # Display routes that match as-path-acl 1. <3Com> display bgp routing-table as-path-acl 1 Flags: # - valid D - damped Dest/Mask -------------------------------------------------------------------- #^ 1.1.1.0/24...

  • Page 453: Display Bgp Routing-Table Cidr

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol #^ 1.1.3.0/24 #^ 2.2.3.0/24 #^ 4.4.4.0/24 #^ 9.9.9.0/24 #^ 10.10.10.0/24 22.1.0.0/16 88.1.0.0/16 Table 5-7 Description on fields of the display bgp routing-table as-path-acl command Field Dest/Mask Destination address/Mask Pref Preference...

  • Page 454: Display Bgp Routing-Table Community

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Description Use the display bgp routing-table cidr command to view the routing information about the non-natural mask (namely the classless inter-domain routing, CIDR). Example <3Com> display bgp routing-table cidr Flags:...

  • Page 455: Display Bgp Routing-Table Community-List

    Use the display bgp routing-table community command to view the routing information related to the specified BGP community number in the routing table. Example # Display the routing information matching BGP community number 11:22. <3Com> display bgp routing-table community 11:22 Flags: # - valid D - damped...

  • Page 456: Display Bgp Routing-Table Dampened

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Destination/Mask ------------------------------------------------------------------- 1.1.1.0/24 1.1.2.0/24 1.1.3.0/24 2.2.3.0/24 4.4.4.0/24 9.9.9.0/24 10.10.10.0/24 10.10.10.0/24 For detailed description of the fields in the output information, see Table 5-6. 5.1.20 display bgp routing-table dampened Syntax display bgp routing-table dampened...

  • Page 457: Display Bgp Routing-Table Different-Origin-As

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Table 5-8 Description on the fields of the display bgp routing-table dampened command Field Flags Dest/Mask Source Damping-limit Origin As-path 5.1.21 display bgp routing-table different-origin-as Syntax Display bgp [ multicast ] routing-table different-origin-as...

  • Page 458: Display Bgp Routing-Table Flap-Info

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Description Use the display bgp routing-table different-origin-as command to display routes that have different source autonomous systems. Example # Display the routes that have different source ASs. <3Com> display bgp routing-table different-origin-as...
  • Page 459 3Com Switch 7750 Series Command Reference Guide – Routing Protocol <3Com> display bgp routing-table flap-info Flags: # - valid D - damped Dest/Mask Source Keepup-time Damping-limit Flap-times Origin As-path -------------------------------------------------------------------- 11.1.0.0/16 133.1.1.2 Table 5-9 Description on fields of the display bgp routing-table flap-info command...

  • Page 460: Display Bgp Routing-Table Peer

    Use the display bgp routing-table peer command to view the routing information the specified BGP peer advertised or received. Example # Display the routing information advertised by BGP peer 1.1.1.2. <3Com> display bgp routing table peer 1.1.1.2 advertised Dest/Mask ------------------------------------------------------------------------- Appendant Flags: @ - Queued 1.1.1.0/24...

  • Page 461: Display Bgp Routing-Table Statistic

    Use the display bgp routing-table regular-expression command to view the routing information matching the specified AS regular expression Example # Display the routing information matched with ^200$. <3Com> display bgp routing-table regular-expression ^200$ Flags: # - valid D - damped...

  • Page 462: Filter-Policy Export

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Display the statistics of BGP routing information. <3Com> display bgp routing-table statistic Routes total: 4 5.1.26 filter-policy export Syntax filter-policy { acl-number | ip-prefix ip-prefix-name } export [ protocol [ process-id ] ]...

  • Page 463: Filter-Policy Import

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol [3Com-bgp] filter-policy 2000 export 5.1.27 filter-policy import Syntax filter-policy gateway ip-prefix-name import undo filter-policy gateway ip-prefix-name import filter-policy { acl-number | ip-prefix ip-prefix-name } import undo filter-policy { acl-number | ip-prefix ip-prefix-name } import...

  • Page 464: Import-Route

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol undo group group-name View BGP view Parameter group-name: Name of the peer group, an alphanumeric string of 1 to 47 characters. It means only locally. internal: Creates an IBGP peer group.

  • Page 465: Network

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Parameter protocol: Source routing protocols which can be imported, including direct, ospf, ospf-ase, ospf-nssa, rip, isis and static at present. process-id: Specific process ID, in the range of 1 to 65535. This argument is valid only when the protocol argument is “ospf”.

  • Page 466: Peer Advertise-Community

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Description Use the network command to advertise the network segment route to the BGP routing table. Use the undo network command to cancel the existing configuration. By default, the BGP does not advertise any network segment routes.

  • Page 467: Peer Allow-As-Loop

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 5.1.32 peer allow-as-loop Syntax peer { group-name | ip-address } allow-as-loop [ number ] undo peer { group-name | ip-address } allow-as-loop View BGP view Parameter group-name: Name of a peer group, containing 1 to 47 characters.

  • Page 468: Peer As-Path-Acl Export

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Description Use the peer as-number command to configure the AS number of a peer group. Use the undo peer as-number command to delete the AS number of a peer group.

  • Page 469: Peer As-Path-Acl Import

    Command Reference Guide – Routing Protocol <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] bgp 100 [3Com-bgp] peer test as-path-acl 1 export 5.1.35 peer as-path-acl import Syntax peer { group-name | ip-address } as-path-acl acl-number import undo peer { group-name | ip-address } as-path-acl acl-number import...

  • Page 470: Peer Default-Route-Advertise

    # Specify the source interface that sends route update packets to the peer group named test as Loopback 0. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] bgp 100 [3Com-bgp] peer test connect-interface loopback 0 5.1.37 peer default-route-advertise Syntax peer group-name default-route-advertise undo peer group-name default-route-advertise...

  • Page 471: Peer Description

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Description Use the peer default-route-advertise command to send the default route to the peer/peer group. Use the undo peer default-route-advertise command to cancel the existing configuration. By default, the default route is not sent to the peer group.

  • Page 472: Peer Ebgp-Max-Hop

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Related command: display current-configuration, display bgp peer, and display bgp routing-table group. Example # Configure the description information of an existing peer group named group1 as ISP1. <3Com>system-view System View: return to User View with Ctrl+Z.

  • Page 473: Peer Enable

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 5.1.40 peer enable Syntax peer { group-name | ip-address } enable undo peer { group-name | ip-address } enable View BGP view Parameter group-name: Name of the peer group, containing 1 to 47 characters.

  • Page 474: Peer Filter-Policy Import

    2000.. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] bgp 100 [3Com-bgp] peer test filter-policy 2000 export 5.1.42 peer filter-policy import Syntax peer { group-name | ip-address } filter-policy acl-number import undo peer { group-name | ip-address } filter-policy acl-number import...

  • Page 475: Peer Group

    # Set the filter-policy list of a peer group test. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] bgp 100 [3Com-bgp] peer test filter-policy 2000 import 5.1.43 peer group Syntax peer ip-address group group-name [ as-number as-number ]...

  • Page 476: Peer Ip-Prefix Export

    # Configure the route filtering policy of the peer group based on the ip-prefix 1. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] bgp 100 [3Com-bgp] peer group1 ip-prefix list1 export 5.1.45 peer ip-prefix import Syntax peer { group-name | ip-addess } ip-prefix ip-prefix-name import...

  • Page 477: Peer Next-Hop-Local

    # Configure the route filtering policy of the peer group based on the ip-prefix 1. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] bgp 100 [3Com-bgp] peer group1 ip-prefix list1 import 5.1.46 peer next-hop-local Syntax peer group-name next-hop-local...

  • Page 478: Peer Password

    # Adopt MD5 authentication on the TCP connection set up between the local router at 10.1.100.1 and the peer router at 10.1.100.2. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] bgp 100 [3Com-bgp] peer 10.1.100.2 password simple 3Com Chapter 5 BGP Configuration Commands 5-42...

  • Page 479: Peer Public-As-Only

    Command Reference Guide – Routing Protocol # Perform the similar configuration on the peer. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] bgp 100 [3Com-bgp] peer 10.1.100.1 password simple 3Com 5.1.48 peer public-as-only Syntax peer group-name public-as-only undo peer group-name public-as-only...

  • Page 480: Peer Route-Policy Export

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol undo peer group-name reflect-client View BGP view Parameter group-name: Name of peer group, containing 1 to 47 characters. Description Use the peer reflect-client command to configure the local device as a route reflector and configure a peer/peer group as the route reflector client.

  • Page 481: Peer Route-Policy Import

    <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] bgp 100 [3Com-bgp] peer test route-policy test-policy export 5.1.51 peer route-policy import Syntax peer { group-name | ip-address } route-policy route-policy-name import undo peer { group-name | ip-address } route-policy route-policy-name import...

  • Page 482: Peer Route-Update-Interval

    # Apply the Route-policy named test-policy to the route coming from the peer/peer group test. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] bgp 100 [3Com-bgp] peer test route-policy test-policy import 5.1.52 peer route-update-interval Syntax peer group-name route-update-interval seconds undo peer group-name route-update-interval...

  • Page 483: Peer Timer

    # Configure Keepalive and Holdtime intervals of the peer group “test”. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] bgp 100 [3Com-bgp] peer test timer keep-alive 60 hold 180 5.1.54 preference Syntax preference ebgp-value ibgp-value local-value undo preference...

  • Page 484: Reflect Between-Clients

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Parameter ebgp-value: Preference value for EBGP. It is in the range of 1 to 256 and defaults to 256. ibgp-value: Preference value for IBGP routes. It is in the range of 1 to 256 and defaults to 256.

  • Page 485: Reflector Cluster-Id

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Related command: reflector cluster-id, and peer reflect-client. Example # Disable the reflection between clients. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] bgp 100 [3Com-bgp] undo reflect between-clients 5.1.56 reflector cluster-id...

  • Page 486: Refresh Bgp

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 5.1.57 refresh bgp Syntax refresh bgp { all | ip-address | group group-name } [ multicast ] { import | export } View User view Parameter all: Refreshes all peers.

  • Page 487: Reset Bgp Dampening

    Related command: dampening, and display bgp routing-table dampened. Example # Reset the route attenuation information of the specified route. <3Com> reset bgp dampening 20.1.0.0 255.255.0.0 Chapter 5 BGP Configuration Commands 5-51...

  • Page 488: Reset Bgp Flap-Info

    If no value is specified, the flap info of all routes will be reset. Related command: dampening. Example # Reset the flap-info of all the routes that go through filter list 10. <3Com> reset bgp flap-info as-path-acl 10 5.1.61 reset bgp group Syntax reset bgp group group-name...

  • Page 489: Timer

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Related command: peer group. Example # Reset BGP connections of all members from group1. <3Com> reset bgp group group1 5.1.62 summary Syntax summary undo summary View BGP view Parameter None Description Use the summary command to configure auto aggregation of sub-network routes.

  • Page 490: Undo Synchronization

    IGP also learns the route. This command means BGP does not synchronize with IGP in current system. You need not configure it for Switch 7750 Series Ethernet Switches don’t support synchronization of BGP and IGP at present. Chapter 5 BGP Configuration Commands...
  • Page 491 3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Cancel the synchronization of BGP and IGP. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] bgp 100 [3Com-bgp] undo synchronization Chapter 5 BGP Configuration Commands 5-55...

  • Page 492: Ip Routing Policy Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Chapter 6 IP Routing Policy Configuration Note: The word “router” covered in the following text represent routers in common sense and Ethernet switches running a routing protocol. To improve readability, this will not be mentioned again in this manual.

  • Page 493: Apply Community

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Add AS number 200 before the original AS path <3Com> system-view System View: return to User View with Ctrl+Z. [3Com]route-policy 10 permit node 10 [3Com-route-policy] apply as-path 200 6.1.2 apply community...

  • Page 494: Apply Cost

    16 and matching mode as permit. Enter route policy view and set matching conditions and execute attribute change command <3Com> system-view System View: return to User View with Ctrl+Z. [3Com]route-policy 10 permit node 10 [3Com] route-policy setcommunity permit node 16 [3Com-route-policy] if-match as-path 8 [3Com-route-policy] apply community no-export 6.1.3 apply cost Syntax...

  • Page 495: Apply Cost-Type

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol 6.1.4 apply cost-type Syntax apply cost-type [ internal | external ] undo apply cost-type View Route policy view Parameter internal: Used in BGP, indicates that the IGP cost will be used as the BGP MED value when BGP peer entity advertises routes to the EBGP peer entity.

  • Page 496: Apply Isis

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Description Use the apply ip next-hop command to set the IP address of next hop. Use the undo apply ip next-hop command to cancel the setting argument. By default, no next hop is defined.

  • Page 497: Apply Local-Preference

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Define an apply clause to import routes to level-2 area. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com]route-policy 10 permit node 10 [3Com-route-policy] apply isis level-2 6.1.7 apply local-preference...

  • Page 498: Apply Tag

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol View Route policy view Parameter igp: Specifies that BGP routing information source is internal route egp: Specifies that BGP routing information source is external route as-number: Specifies autonomous system number of external routes. The value ranges from 1 to 65535.

  • Page 499: Display Ip Ip-Prefix

    # Define an apply statement. When it is used for setting route information attribute, it sets the tag area of route information as 100. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] route-policy policy_10 permit node 12 %New sequence of this list [3Com-route-policy] apply tag 100 6.1.10 display ip ip-prefix...

  • Page 500: Display Route-Policy

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol ip-prefix / mask 6.1.11 display route-policy Syntax display route-policy [ route-policy-name ] View Any view Parameter route-policy-name: Name of the route-policy to be displayed, containing 1 to 19 characters. Description Use the display route-policy command to display the configured Route-policy.

  • Page 501: 6.1.12 If-Match { Acl | Ip-Prefix

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Field if-match (prefixlist) p1 apply cost 100 matched denied 6.1.12 if-match { acl | ip-prefix } Syntax if-match { acl acl-number | ip-prefix ip-prefix-name } undo if-match { acl | ip-prefix }...

  • Page 502: If-Match As-Path

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol System View: return to User View with Ctrl+Z. [3Com] route-policy policy_10 permit node 12 %New sequence of this list [3Com-route-policy] if-match ip-prefix p1 6.1.13 if-match as-path Syntax if-match as-path as-path-number...

  • Page 503: If-Match Cost

    Then create a Route-policy named test and define an if-match statement quoting the definitions of community-list 1 for node 10 of the Route-policy. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] ip community-list 1 permit 100:200 [3Com] route-policy test permit node 10 [3Com-route-policy] if-match community 1 6.1.15 if-match cost...

  • Page 504: If-Match Interface

    # Define an if-match statement and allow the routing information with a routing cost of 8 to pass this if-match statement. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] route-policy policy permit node 1 %New sequence of this list [3Com-route-policy] if-match cost 8 6.1.16 if-match interface...

  • Page 505: If-Match Ip Next-Hop

    # Define an if-match statement to match the route whose next hop interface is Vlan-interface 1 <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] route-policy policy permit node 1 %New sequence of this list [3Com-route-policy] if-match interface Vlan-interface 1 6.1.17 if-match ip next-hop...

  • Page 506: If-Match Tag

    <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] route-policy policy permit node 1 %New sequence of this list [3Com-route-policy] if-match ip next-hop ip-prefix p1 6.1.18 if-match tag...

  • Page 507: Ip As-Path-Acl

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol [3Com] route-policy policy permit node 1 %New sequence of this list [3Com-route-policy] if-match tag 8 6.1.19 ip as-path-acl Syntax ip as-path-acl acl-number { permit | deny } as-regular-expression undo ip as-path-acl acl-number...

  • Page 508: Ip Ip-Prefix

    <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] ip community-list 6 permit no-export-subconfed 6.1.21 ip ip-prefix Syntax ip ip-prefix ip-prefix-name [ index index-number ] { permit | deny } network len...
  • Page 509 3Com Switch 7750 Series Command Reference Guide – Routing Protocol Parameter ip-prefix-name: Name of address prefix list, containing 1 to 19 characters. It identifies an address prefix list uniquely. index-number: Identifier of an item in the prefix address list. The item with a smaller index-number will be tested first.

  • Page 510: Route-Policy

    18 on network segment 10.0.192.0 8 to pass. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] ip ip-prefix p1 permit 10.0.192.0 8 greater-equal 17 less-equal 18 6.1.22 route-policy Syntax route-policy route-policy-name { permit | deny } node { node-number }...
  • Page 511 3Com Switch 7750 Series Command Reference Guide – Routing Protocol An if-match statement defines the match rules of this node. An apply statement defines the actions after filtering through this node. The filtering relationship between the if-match statements of the node is "and". That is, all if-match statements of the node must be met.

  • Page 512: Display Memory

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Chapter 7 Route Capacity Configuration Note: The word “router” covered in the following text represent routers in common sense and Ethernet switches running a routing protocol. To improve readability, this will not be mentioned again in this manual.

  • Page 513: Display Memory Limit

    3Com Switch 7750 Series Command Reference Guide – Routing Protocol Table 7-1 Description on the fields of the display memory command System Total Memory(bytes) Total Used Memory(bytes) Used Rate 7.1.2 display memory limit Syntax display memory limit View Any view...

  • Page 514: Memory Auto-Establish Disable

    (even if the free memory recovers to a safety value). By default, when the free memory of the switch recovers to a safety value, connections of all the routing protocols will always recover (when the free memory of the switch decreases to a lower limit, the connection will be disconnected forcibly).

  • Page 515: Memory Auto-Establish Enable

    After this command is used, connections of all the routing protocols will not recover when the free memory of the switch recovers to a safety value. In this case, you need to restart the routing protocol to recover the connections.

  • Page 516: 7.1.5 Memory { Safety | Limit

    Use the memory limit limit-value command to configure the lower limit of the switch free memory. When the free memory of the switch is less than this limit, all the routing protocol connections will be disconnected forcibly. The limit-value argument in the command must be less than the current free memory safety value;...
  • Page 517 3Com Switch 7750 Series Command Reference Guide – Routing Protocol Example # Set the lower limit of the switch free memory to 2 MB and the safety value to 4 MB. <3Com> system-view System View: return to User View with Ctrl+Z.
  • Page 518 3Com Switch 7750 Series Command Reference Guide – Multicast Chapter 1 IGMP Snooping Configuration Commands... 1-1 1.1 IGMP Snooping Configuration Commands ... 1-1 1.1.1 display igmp-snooping configuration... 1-1 1.1.2 display igmp-snooping group ... 1-2 1.1.3 display igmp-snooping statistics... 1-3 1.1.4 display multicast-vlan ... 1-4 1.1.5 igmp-snooping...
  • Page 519 3Com Switch 7750 Series Command Reference Guide – Multicast Chapter 4 IGMP Configuration Commands ... 4-1 4.1 IGMP Configuration Commands... 4-1 4.1.1 display igmp group ... 4-1 4.1.2 display igmp interface ... 4-2 4.1.3 igmp enable... 4-3 4.1.4 igmp group-limit... 4-4 4.1.5 igmp group-policy...
  • Page 520 3Com Switch 7750 Series Command Reference Guide – Multicast Table of Contents 5.1.22 static-rp... 5-20...

  • Page 521: Igmp Snooping Configuration Commands

    Use the display igmp-snooping configuration command to display IGMP Snooping configuration information. When IGMP Snooping is enabled on the switch, this command displays the following information: IGMP Snooping status, aging time of the router port, query response timeout time, and aging time of multicast member ports.

  • Page 522: Display Igmp-Snooping Group

    IP multicast group, MAC multicast group, MAC multicast group address, and member ports included in the MAC multicast group. Example # Display information about the multicast groups under VLAN 2. <3Com> display igmp-snooping group vlan 2 Total 1 IP Group(s). Total 1 MAC Group(s). Vlan(id):2.

  • Page 523: Display Igmp-Snooping Statistics

    3Com Switch 7750 Series Command Reference Guide – Multicast The information above means: Multicast groups exist in VLAN 2. The address of the IP multicast group is 255.1.1.1. 1.1.3 display igmp-snooping statistics Syntax display igmp-snooping statistics View Any view Parameter...

  • Page 524: Display Multicast-Vlan

    3Com Switch 7750 Series Command Reference Guide – Multicast zero IGMP leave packets zero IGMP error packets IGMP Snooping sends: zero IGMP specific query packets 1.1.4 display multicast-vlan Syntax display multicast-vlan [ vlan-id ] View Any view Parameter vlan-id: ID of the specified VLAN.

  • Page 525: Igmp-Snooping Fast-Leave

    3Com Switch 7750 Series Command Reference Guide – Multicast Parameter enable: Enables the IGMP Snooping feature. disable: Disables the IGMP Snooping feature. Description Use the igmp-snooping enable command to enable the IGMP Snooping feature. Use the igmp-snooping disable command to disable the IGMP Snooping feature.

  • Page 526: Igmp-Snooping Group-Limit

    3Com Switch 7750 Series Command Reference Guide – Multicast If this command is executed, when receiving an IGMP Leave packet, IGMP Snooping removes the port from the multicast group directly. When the port has only one user, enabling IGMP fast leave processing can save bandwidth.

  • Page 527: Igmp-Snooping Group-Policy

    ACL. By default, no IGMP Snooping filtering ACL is configured. You can configure multicast filtering ACLs globally or on the switch ports connected to user ends so as to use the IGMP Snooping filter function to limit the multicast streams that the users can access.
  • Page 528 Configure ACL 2000. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] acl number 2000 [3Com-acl-basic-2000] rule permit source 225.0.0.0 0.255.255.255 [3Com-acl-basic-2000] quit Create VLAN 2 and add Ethernet 1/0/1 port to VLAN 2. [3Com] vlan 2 [3Com-vlan2] port Ethernet 1/0/1...

  • Page 529: Igmp-Snooping Host-Aging-Time

    3Com Switch 7750 Series Command Reference Guide – Multicast [3Com-Ethernet1/0/1] igmp-snooping group-policy 2000 vlan 2 [3Com-Ethernet1/0/1] quit # Configure ACL 2001 to allow users under Ethernet 1/0/2 to access the multicast streams in any groups except groups 225.0.0.0 to 225.0.0.255.

  • Page 530: Igmp-Snooping Max-Response-Time

    Use the undo igmp-snooping max-response-time command to restore the default timeout time. By default, the query response timeout time is 10 seconds. The maximum response time you configured determines how long the switch can wait for a response to an IGMP Snooping query message. Related command: igmp-snooping, igmp-snooping router-aging-time.

  • Page 531: Igmp-Snooping Router-Aging-Time

    If IGMP snooping is disabled globally, the suppression on IGMP report packets is disabled simultaneously. Example # Enable suppression on Layer 2 multicast IGMP report packets on the switch. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] igmp-snooping enable [3Com] igmp-snooping report-aggregation 1.1.12 igmp-snooping router-aging-time...

  • Page 532: Multicast-Vlan Enable

    By default, the aging time of the router port is 105 seconds. The router port here refers to the port connecting the Layer 2 switch to the router. The Layer 2 switch receives IGMP general query messages from the router through this port.

  • Page 533: Multicast-Vlan Subvlan

    3Com Switch 7750 Series Command Reference Guide – Multicast Caution: A multicast VLAN cannot be configured as a multicast sub-VLAN. A multicast sub-VLAN cannot be configured as a multicast VLAN. A multicast sub-VLAN cannot be configured as the sub-VLAN of other multicast VLANs.

  • Page 534: Reset Igmp-Snooping Statistics

    Enter system view, return to user view with Ctrl+Z [3Com] igmp-snooping enable [3Com] vlan 10 [3Com-vlan10] igmp-snooping enable [3Com-vlan10] multicast-vlan enable [3Com-vlan10] quit [3Com] multicast-vlan 10 subvlan 2 to 5 1.1.15 reset igmp-snooping statistics Syntax reset igmp-snooping statistics View User view...
  • Page 535 3Com Switch 7750 Series Command Reference Guide – Multicast Example # Clear IGMP Snooping statistics. <3Com> reset igmp-snooping statistics Chapter 1 IGMP Snooping Configuration Commands 1-15...

  • Page 536: Common Ip Multicast Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – Multicast Chapter 2 Common IP Multicast Configuration 2.1 Common IP Multicast Configuration Commands 2.1.1 display mpm forwarding-table Syntax display mpm forwarding-table [ group-address | source-address ] View Any view Parameter group-address: Multicast group address to specify a multicast group, in the range of 224.0.0.0 to 239.255.255.255.

  • Page 537: Display Mpm Group

    3Com Switch 7750 Series Command Reference Guide – Multicast GigabitEthernet3/0/19 Total 1 entry(entries) Listed Multicast Forwarding Cache Table Total 1 entry(entries) 00001. (10.11.113.110, 226.1.1.1) in-vlan Vlan1 2 out-vlan(s): Vlan20 Ethernet5/1/33 Vlan10 Ethernet5/1/31 Total 1 entry(entries) Listed Table 2-1 describes the fields in the displayed information above:...
  • Page 538 IGMP-enabled VLANs. Example # Display the information about multicast groups in VLAN 2. <3Com> display mpm group vlan 1200 Chapter 2 Common IP Multicast Configuration Commands...
  • Page 539 3Com Switch 7750 Series Command Reference Guide – Multicast Total 2 IP Group(s). Total 2 MAC Group(s). Vlan(id):1200. Total 2 IP Group(s). Total 2 MAC Group(s). Static router port(s): Dynamic router port(s): IP group(s):the following ip group(s) match to one mac group.

  • Page 540: Display Multicast Forwarding-Table

    3Com Switch 7750 Series Command Reference Guide – Multicast 2.1.3 display multicast forwarding-table Syntax display multicast forwarding-table [ group-address [ mask { group-mask | mask-length } ] | source-address [ mask { group-mask | mask-length } ] | incoming-interface { interface-type interface-number ] register } ]*...

  • Page 541: Display Multicast Routing-Table

    3Com Switch 7750 Series Command Reference Guide – Multicast Total 1 entries 00001 (10.0.0.4, 225.1.1.1) iif Vlan-interface2, 0 oifs Matched 122 pkts(183000 bytes), Wrong If 0 pkts Forwarded 122 pkts(183000 bytes) 2.1.4 display multicast routing-table Syntax display multicast routing-table [ group-address [ mask { mask | mask-length } ] |...
  • Page 542 3Com Switch 7750 Series Command Reference Guide – Multicast Example # Query the information about the routing entries corresponding to the multicast group 225.1.1.1.1 in the multicast routing table. <3Com> display multicast routing-table Multicast Routing Table Total 3 entries (4.4.4.4, 224.2.149.17) Uptime: 00:15:16, Timeout in 272 sec Upstream interface: Vlan-interface1(4.4.4.6)

  • Page 543: Display Multicast-Source-Deny

    If you specify neither the port type nor the port number, the multicast source port check information about all the ports on the switch is displayed. If you specify the port type only, the multicast source port check information about all ports of this type is displayed.

  • Page 544: Multicast Load-Sharing Enable

    3Com Switch 7750 Series Command Reference Guide – Multicast If you specify both the port type and the port number, the multicast source port check information about the specified port is displayed. Example # Display the multicast source port suppression state of Ethernet 1/0/1.

  • Page 545: Multicast Route-Limit

    3Com Switch 7750 Series Command Reference Guide – Multicast System View: return to User View with Ctrl+Z. [3Com] multicast load-sharing enable 2.1.7 multicast route-limit Syntax multicast route-limit limit undo multicast route-limit View System view Parameter limit: Limit on the capacity of the multicast routing table, in the range of 0 to 1,024.

  • Page 546: Multicast Static-Router-Port

    3Com Switch 7750 Series Command Reference Guide – Multicast View System view Parameter None Description Use the multicast routing-enable command to enable the IP multicast routing feature. Use the undo multicast routing-enable command to disable the IP multicast routing feature.

  • Page 547: Multicast Static-Router-Port Vlan

    3Com Switch 7750 Series Command Reference Guide – Multicast Caution: Up to 256 static router ports can be configured in a system. Reflection ports cannot be configured as static router ports. A port in a multicast sub-VLAN cannot be configured as a static router port.

  • Page 548: Multicast Wrongif-Holdtime

    3Com Switch 7750 Series Command Reference Guide – Multicast Caution: Up to 256 static router ports can be configured in a system. Reflection ports cannot be configured as static router ports. A port in a multicast sub-VLAN cannot be configured as a static router port.

  • Page 549: Multicast-Source-Deny

    In this case, you can configure the holdtime of wrongif packets, so that the wrongif packets will be dropped instead of being forwarded to the CPU of the switch, and the CPU will be prevented from being stricken by too many packets.

  • Page 550: Reset Multicast Forwarding-Table

    Example # Enable the multicast source port suppression feature on all the ports of the switch. <3Com> system-view System View: return to User View with Ctrl+Z.

  • Page 551: Reset Multicast Routing-Table

    <3Com> reset multicast forwarding-table 225.5.4.3 # Clear the statistics information about the forwarding entries whose group address is 225.5.4.3 in the MFC forwarding table. <3Com> reset multicast forwarding-table statistics 225.5.4.3 2.1.14 reset multicast routing-table Syntax reset multicast routing-table { all | { group-address [ mask { group-mask |...
  • Page 552 3Com Switch 7750 Series Command Reference Guide – Multicast group-mask: Specifies the mask of the group address. group-mask-length: Specifies the mask length of the group address. source-address: Specifies the source address. source-mask: Specifies the mask of the source address. source-mask-length: Specifies the mask length of the source address.

  • Page 553: Chapter 3 Multicast Mac Address Entry Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – Multicast Chapter 3 Multicast MAC Address Entry Configuration Commands 3.1 Multicast MAC Address Entry Configuration Commands 3.1.1 display mac-address multicast Syntax display mac-address multicast [ count ] View Any view Parameter count: Number of MAC entries.
  • Page 554 # Add a multicast MAC address entry, with multicast address 0100-5e0a-0805, forward port Ethernet 1/0/1, and VLAN 1 to which the entry belongs. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] mac-address multicast 0100-5e0a-0805 interface Ethernet 1/0/1 vlan 1 Chapter 3 Multicast MAC Address Entry Configuration Commands...

  • Page 555: Display Igmp Group

    3Com Switch 7750 Series Command Reference Guide – Multicast Chapter 4 IGMP Configuration Commands Note: When running IP multicast protocols, Ethernet switches also provide the functions of switches. We use routers in this manual to stand for not only the common routers but also the layer 3 Ethernet switches running IP multicast protocols.

  • Page 556: Display Igmp Interface

    3Com Switch 7750 Series Command Reference Guide – Multicast Group Address 225.1.1.1 225.1.1.3 225.1.1.2 Table 4-1 Output description of the display igmp group command Group address Last Reporter Uptime Expires 4.1.2 display igmp interface Syntax display igmp interface [ interface-type interface-number ]...

  • Page 557: Igmp Enable

    3Com Switch 7750 Series Command Reference Guide – Multicast Value of maximum query response time for IGMP(in seconds): 10 Value of robust count for IGMP: 2 Value of startup query interval for IGMP(in seconds): 15 Value of last member query interval for IGMP(in seconds): 1...

  • Page 558: Igmp Group-Limit

    3Com Switch 7750 Series Command Reference Guide – Multicast undo igmp enable View VLAN interface view Parameter None Description Use igmp enable command to enable IGMP on an interface. Use the undo igmp enable command to disable IGMP on the interface.

  • Page 559: Igmp Group-Policy

    3Com Switch 7750 Series Command Reference Guide – Multicast By default, 256 IGMP groups are added to a VLAN interface. The new configuration overwrites the old one if you run the command for a second time. Caution: New groups cannot be added when the number of IGMP multicast groups has exceeded the configured limit.

  • Page 560: Igmp Group-Policy Vlan

    <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] acl number 2000 [3Com-acl-basic-2000] rule permit source 225.0.0.0 0.255.255.255 [3Com-acl-basic-2000] quit # Configure that only the hosts matching ACL 2000 rules on VLAN-interface10 can be added to the multicast group whose IGMP version is specified to 2.

  • Page 561: Igmp Host-Join Port

    [3Com] interface Vlan-interface 10 [3Com-Vlan-interface10] igmp enable [3Com-Vlan-interface10] quit [3Com] interface Ethernet 0/1 [3Com-Ethernet0/1] port access vlan 10 [3Com-Ethernet0/1] igmp group-policy 2000 vlan 10 4.1.7 igmp host-join port Syntax igmp host-join group-address port interface-list undo igmp host-join group-address port interface-list...

  • Page 562: Igmp Host-Join Vlan

    Use the igmp host-join port command to enable a port in the VLAN interface of a switch to join a multicast group. Use undo igmp host-join port command to disable the configuration. By default, VLAN interfaces of a switch do not belong to any multicast group. Related command: igmp group-policy. Example # Add port Ethernet 1/0/1 in VLAN-interface10 to the multicast group at 225.0.0.1.

  • Page 563: Igmp Lastmember-Queryinterval

    System View: return to User View with Ctrl+Z. [3Com] interface Vlan-interface 10 [3Com-Vlan-interface10] igmp enable [3Com-Vlan-interface10] quit [3Com] interface Ethernet 0/1 [3Com-Ethernet0/1] port access vlan 10 [3Com-Ethernet0/1] igmp host-join 225.0.0.1 vlan 10 4.1.9 igmp lastmember-queryinterval Syntax igmp lastmember-queryinterval seconds undo igmp lastmember-queryinterval View...

  • Page 564: Igmp Max-Response-Time

    3Com Switch 7750 Series Command Reference Guide – Multicast robust-value × seconds), the IGMP query router continue to maintain the membership of this group. When receiving no IGMP Membership Report message from any hosts within the defined period, the IGMP query router considers it as timeout and stops membership maintenance for the group.

  • Page 565: Igmp Proxy

    Parameter interface-number: Proxy interface number. Description Use the igmp proxy command to specify an interface of the Layer 3 endpoint switch as the IGMP proxy interface of another interface. Use the undo igmp proxy command to disable this configuration. The IGMP proxy feature is disabled by default.

  • Page 566: Igmp Report-Aggregation

    You must enable IP multicast routing globally before configuring suppression on IGMP report packets. If IP multicast routing is disabled globally, suppression on IGMP report packets is disabled simultaneously. Example # Enable suppression on Layer 3 multicast IGMP report packets on the switch. Chapter 4 IGMP Configuration Commands 4-12...

  • Page 567: Igmp Robust-Count

    3Com Switch 7750 Series Command Reference Guide – Multicast <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] multicast routing-enable [3Com] igmp report-aggregation 4.1.13 igmp robust-count Syntax igmp robust-count robust-value undo igmp robust-count View VLAN interface view Parameter robust-value: IGMP robust value, number of sending the IGMP group-specific query packets after the IGMP querier receives the IGMP Leave packet from the host.

  • Page 568: Igmp Timer Other-Querier-Present

    3Com Switch 7750 Series Command Reference Guide – Multicast This command is only available on the IGMP query router running IGMP v2. For the host running IGMP v1, this command cannot take effect because the host does not send IGMP Leave packets when it leaves a group.

  • Page 569: Igmp Timer Query

    3Com Switch 7750 Series Command Reference Guide – Multicast Example # Set the querier to expire after 300 seconds. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface Vlan-interface 10 [3Com-Vlan-interface10] igmp timer other-querier-present 300 4.1.15 igmp timer query...

  • Page 570: Igmp Version

    The default IGMP version is IGMP version 2. All routers on a subnet must support the same version of IGMP. After detecting the presence of IGMP Version 1 system, a router cannot automatically switch to Version 1. Example # Run IGMP Version 1 on VLAN-interface10.
  • Page 571 # Delete the group 225.0.0.1 from Vlan-interface10. <3Com> reset igmp group interface Vlan-interface10 225.0.0.1 # Delete the IGMP groups ranging from 225.1.1.0 to 225.1.1.255 on Vlan-interface10. <3Com> reset igmp group interface Vlan-interface10 225.1.1.0 255.255.255.0 Chapter 4 IGMP Configuration Commands 4-17...

  • Page 572: Chapter 5 Pim Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – Multicast Chapter 5 PIM Configuration Commands 5.1 PIM Configuration Commands 5.1.1 bsr-policy Syntax bsr-policy acl-number undo bsr-policy View PIM view Parameter acl-number: ACL number imported in BSR filtering policy, in the range of 2,000 to 2,999.

  • Page 573: C-Bsr

    System View: return to User View with Ctrl+Z. [3Com] multicast routing-enable [3Com] pim [3Com-pim] bsr-policy 2000 [3Com-pim] quit [3Com] acl number 2000 [3Com-acl-basic-2000] rule 0 permit source 101.1.1.1 0 5.1.2 c-bsr Syntax c-bsr interface-type interface-number hash-mask-len [ priority ] undo c-bsr View...

  • Page 574: C-Rp

    BSR and other devices in the PIM domain. Related command: pim sm. Example # Configure the switch as a BSR with priority 2 (and the C-BSR address is designated as the IP address of VLAN-interface10). <3Com> system-view System View: return to User View with Ctrl+Z.

  • Page 575: Crp-Policy

    Command Reference Guide – Multicast Example # Configure the switch to advertise the BSR that the switch itself is the C-RP in the PIM. The standard access list 2000 defines the groups related to the RP. The address of C-RP is designated as the IP address of VLAN-interface10.

  • Page 576: Display Pim Bsr-Info

    System View: return to User View with Ctrl+Z. [3Com] multicast routing-enable [3Com] pim [3Com-pim] crp-policy 3000 [3Com-pim] quit [3Com] acl number 3000 [3Com-acl-adv-3000] rule 0 permit source 1.1.1.1 0 destination 225.1.0.0 0.0.255.255 5.1.5 display pim bsr-info Syntax display pim bsr-info View...

  • Page 577: Display Pim Interface

    3Com Switch 7750 Series Command Reference Guide – Multicast Table 5-1 Description on the fields of the display pim bsr-info command Priority Mask Length: 30 Expires: 00:01:55 5.1.6 display pim interface Syntax display pim interface [ interface-type interface-number ] View...

  • Page 578: Display Pim Neighbor

    Description Use the display pim neighbor command to view the PIM neighbor information discovered by the VLAN interface of the switch. If the VLAN interface parameter is specified, only the PIM neighbor information about the specified VLAN interface is displayed.

  • Page 579: Display Pim Routing-Table

    3Com Switch 7750 Series Command Reference Guide – Multicast Table 5-3 Description on the fields of the display pim neighbor command Neighbor’s Address Interface name Uptime Expires 5.1.8 display pim routing-table Syntax display pim routing-table [ { { *g [ group-address [ mask { mask-length | mask } ] ] |...

  • Page 580: Display Pim Rp-Info

    3Com Switch 7750 Series Command Reference Guide – Multicast Example # Display the information about the PIM multicast routing table. <3Com> display pim routing-table PIM-SM Routing Table Total 0 (*,*,RP)entry, 0 (*,G)entry, 2 (S,G)entries (192.168.1.2, 224.2.178.130), Protocol 0x20: PIMSM, Flag 0x4: SPT...
  • Page 581 3Com Switch 7750 Series Command Reference Guide – Multicast Description Use the display pim rp-info command to view the RP information of the multicast group. In addition, this command can also display the BSR and static RP information. Example # View the RP information of the multicast group <3Com>...

  • Page 582: Pim Bsr-Boundary

    VLAN interface view Parameter None Description Use the pim bsr-boundary command to configure a VLAN interface of the switch as the PIM domain boundary. Use the undo pim bsr-boundary command to remove the configured PIM domain boundary. The switch does not set any PIM domain boundary by default.

  • Page 583: Pim Dm

    Once enabled PIM-DM on an interface, PIM-SM cannot be enabled on the same interface and vice versa. Example # Enable the PIM-DM protocol on VLAN-interface10 of the Ethernet switch. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] multicast routing-enable...

  • Page 584: Pim Neighbor-Limit

    3Com Switch 7750 Series Command Reference Guide – Multicast 5.1.13 pim neighbor-limit Syntax pim neighbor-limit limit undo pim neighbor-limit View VLAN interface view Parameter limit: Upper limit of PIM neighbors on the VLAN interface, in the range of 0~128. Description Use the pim neighbor-limit command to limit the number PIM neighbors on a router interface.

  • Page 585: Pim Sm

    System View: return to User View with Ctrl+Z. [3Com] multicast routing-enable [3Com] interface Vlan-interface 10 [3Com-Vlan-interface10] pim neighbor-policy 2000 [3Com-Vlan-interface10] quit [3Com] acl number 2000 [3Com-acl-basic-2000] rule permit source 10.10.1.2 0 [3Com-acl-basic-2000] rule deny source 10.10.1.1 0 5.1.15 pim sm Syntax pim sm undo pim sm...

  • Page 586: Pim Timer Hello

    Example # Configure to VLAN-interfaceo10 of the switch to send Hello packet at the interval of 40 seconds. <3Com> system-view System View: return to User View with Ctrl+Z.

  • Page 587: Register-Policy

    225.1.0.0/16 on network segment 10.10.0.0/16. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] acl number 3010 [3Com-acl-adv-3010] rule permit ip source 10.10.0.0 0.0.255.255 destination 225.1.0.0 0.0.255.255 [3Com-acl-adv-3010] quit [3Com] multicast routing-enable [3Com] pim [3Com-pim] register-policy 3010 5.1.18 spt-switch-threshold...
  • Page 588 In PIM-SM, an Ethernet switch forwards multicast packets over RPT initially. If the multicast traffic sent by the multicast source exceeds the threshold value, the multicast traffic will be switched from RPT to SPT when it passes the last-hop Ethernet switch. Note: Currently, the threshold value can be 0 or infinity.

  • Page 589: Reset Pim Neighbor

    3Com Switch 7750 Series Command Reference Guide – Multicast 5.1.19 reset pim neighbor Syntax reset pim neighbor { all | { neighbor-address | interface interface-type interface-number } * } View User view Parameter all: All PIM neighbors neighbor-address: Specifies neighbor address.

  • Page 590: Source-Policy

    3Com Switch 7750 Series Command Reference Guide – Multicast source-mask-length: Specifies mask length of the group address. incoming-interface: Specifies incoming interface for the route entry in PIM routing table. interface-type interface-number: Specifies the VLAN interface. Description Use the reset pim routing-table command to clear all PIM route entries or the specified PIM route entry.
  • Page 591 System View: return to User View with Ctrl+Z. [3Com] multicast routing-enable [3Com] pim [3Com-pim] source-policy 2000 [3Com-pim] quit [3Com] acl number 2000 [3Com-acl-basic-2000] rule permit source 10.10.1.2 0 [3Com-acl-basic-2000] rule deny source 10.10.1.1 0 5.1.22 static-rp Syntax static-rp rp-address [ acl-number ] undo static-rp...
  • Page 592 3Com Switch 7750 Series Command Reference Guide – Multicast acl-number: Basic ACL, used to control the range of multicast group served by static RP, which ranges from 2000 to 2999. If an ACL is not specified upon configuration, static RP will serve all multicast groups; if an ACL is specified, static RP will only serve the multicast group passing the ACL.
  • Page 593 3Com Switch 7750 Series Command Reference Guide – 802.1x Chapter 1 802.1x Configuration Commands ... 1-1 1.1 802.1x Configuration Commands ... 1-1 1.1.1 display dot1x ... 1-1 1.1.2 dot1x... 1-4 1.1.3 dot1x authentication-method... 1-5 1.1.4 dot1x dhcp-launch... 1-6 1.1.5 dot1x guest-vlan ... 1-7 1.1.6 dot1x max-user...

  • Page 594: Chapter 1 802.1X Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – 802.1x Chapter 1 802.1x Configuration Commands 1.1 802.1x Configuration Commands 1.1.1 display dot1x Syntax display dot1x [ sessions | statistics ] [ interface interface-list ] View Any view Parameter sessions: Displays the formation about 802.1x sessions.
  • Page 595 3Com Switch 7750 Series Command Reference Guide – 802.1x DHCP-launch is disabled Proxy trap checker is disabled Proxy logoff checker is disabled Guest Vlan is disabled Configuration: Transmit Period Total maximum 802.1x user resource number is 4096 Total current used 802.1x resource number is 0 GigabitEthernet1/0/1 802.1X protocol is disabled...
  • Page 596 3Com Switch 7750 Series Command Reference Guide – 802.1x Field Proxy trap checker is disabled Proxy logoff checker is disabled Guest Vlan is disabled Transmit Period Handshake Period ReAuth Period Quiet Period Quiet Period Timer is disabled Supp Timeout Server Timeout...

  • Page 597: Dot1X

    3Com Switch 7750 Series Command Reference Guide – 802.1x Field Proxy trap checker is disabled Proxy logoff checker is disabled Guest Vlan is disabled Version-Check is disabled The port is a(n) authenticator Authenticate Mode is auto Port Control Type is Mac-based Max on-line user number …...

  • Page 598: Dot1X Authentication-Method

    You can perform 802.1x-related configurations (globally or on specified ports) either before or after 802.1x is enabled. If you do not previously perform other 802.1x-related configurations when enabling 802.1x globally, the switch adopts the default 802.1x settings. 802.1x-related configurations take effect on a port only after 802.1x is enabled both globally and on the port.

  • Page 599: Dot1X Dhcp-Launch

    CHAP applies a three-way handshaking procedure. In this method, user names are transmitted rather than passwords. Therefore this method is safer. In an EAP authentication method, a switch sends 802.1x authentication information directly to the RADIUS server in EAP packets, instead of having to convert them into RADIUS packets before forwarding to the RADIUS server.

  • Page 600: Dot1X Guest-Vlan

    Parameter None Description Use the dot1x dhcp-launch command to specify an 802.1x-enqbled switch to launch the process to authenticate a supplicant system when the supplicant system applies for a dynamic IP address through DHCP. Use the undo dot1x dhcp-launch command to disable an 802.1x-enqbled switch from authenticating a supplicant system when the supplicant system applies for a dynamic IP address through DHCP.
  • Page 601 When being executed in Ethernet port view, these two commands apply to the current Ethernet port only. In this case, the interface-list argument is not needed. Caution: The Guest VLAN function is available only when the switch operates in a port-based authentication mode. Only one Guest VLAN can be configured for each switch.

  • Page 602: Dot1X Max-User

    When being executed in system view, these two commands apply to all Ethernet ports of the switch if you do not provide the interface-list argument. And if you specify the interface-list argument, these commands apply to the specified Ethernet ports.

  • Page 603: Dot1X Port-Control

    When being executed in system view, these two commands apply to all Ethernet ports of the switch if you do not provide the interface-list argument. And if you specify the interface-list argument, these commands apply to the specified Ethernet ports.

  • Page 604: Dot1X Port-Method

    # Specify Ethernet 3/0/1 port to operate in unauthorized-force access control mode. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] dot1x port-control unauthorized-force interface Ethernet 3/0/1 1.1.8 dot1x port-method Syntax dot1x port-method { macbased | portbased } [ interface interface-list ]...

  • Page 605: Dot1X Quiet-Period

    Use the undo dot1x quiet-period command to disable the quiet-period timer. When a supplicant system fails to pass the authentication, the authenticator system (such as a 3Com Ethernet switch) will stay quiet for a period (determined by the quiet-period timer) before it performs another authentication. During the quiet period, the authenticator system performs no 802.1x authentication.

  • Page 606: Dot1X Re-Authenticate

    Authenticator ports of the switch. Use the undo dot1x re-authenticate command to disable 802.1x re-authentication on the specified port or on all Authenticator ports of the switch. By default, 802.1x re-authentication is disabled on all ports.

  • Page 607: Dot1X Retry

    The dot1x retry command is used to set the maximum number of times that a switch will resend the request packets. When set to 1, it means that the switch will send request packets only once, and when set to 2, it means that the switch will resend the packets once if no response comes back, and so on.

  • Page 608: Dot1X Retry-Version-Max

    Use the undo dot1x retry-version-max command to revert to the default value. By default, the switch can send version request packets to an access user for up to three times repeatedly.
  • Page 609 A switch may take the following actions in response to any of the above three cases: Disconnects the supplicant system and sends Trap packets (using the dot1x supp-proxy-check logoff command.)
  • Page 610 Note: The supplicant system proxy checking function needs the support of 3Com's 802.1x client program (V1.29 or later version). The supplicant system proxy checking function takes effect only after it has been enabled on CAMS and the client version checking function is enabled on the switch (using the dot1x version-check command).

  • Page 611: Dot1X Timer

    Value of the quiet-period timer, in seconds. This value can range from 10 to 120 and defaults to 60. tx-period: This timer sets the tx-period and is triggered by the switch in one of the following two cases: The first case is when the client requests for authentication. The switch sends a unicast request/identity packet to a supplicant system and then enables the transmission timer.
  • Page 612 100 to 300 with a default value of 100. ver-period: Client-version-checking period timer, if within the period, no response packet has been sent back from the supplicant system, the switch will resend the client version checking request packet.

  • Page 613: Dot1X Version-Check

    3Com Switch 7750 Series Command Reference Guide – 802.1x 1.1.15 dot1x version-check Syntax dot1x version-check [ interface interface-list ] undo dot1x version-check [ interface interface-list ] View System view, Ethernet port view Parameter interface-list: Ethernet port list. You can specify multiple Ethernet ports by providing this argument in the form of interface-list = { interface-name [ to interface- name] &...
  • Page 614 802.1X statistics on all ports. If the interface-list argument is specified, this command clears statistics on the ports specified by the argument. Related command: display dot1x. Example # Clear 802.1x-related statistics on Ethernet 3/0/1 port. <3Com> reset dot1x statistics interface Ethernet 3/0/1 Chapter 1 802.1x Configuration Commands 1-21...

  • Page 615: Chapter 2 Habp Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – 802.1x Chapter 2 HABP Configuration Commands 2.1 HABP Configuration Commands 2.1.1 display habp Syntax display habp View Any view Parameter None Description Use the display habp command to display HABP configuration and status information.

  • Page 616: Display Habp Table

    3Com Switch 7750 Series Command Reference Guide – 802.1x 2.1.2 display habp table Syntax display habp table View Any view Parameter None Description Use the display habp table command to display the MAC address table maintained by HABP. Example # Display the MAC address table maintained by HABP.

  • Page 617: Habp Enable

    Parameter None Description Use the habp enable command to enable HABP for a switch. Use the undo habp enable command to disable HABP for a switch. By default, HABP is enabled on a switch. Chapter 2 HABP Configuration Commands Description...

  • Page 618: Habp Server Vlan

    By default, a switch operates as an HABP client. To specify a switch to operate as an HABP server, you need to enable HABP (using the habp enable command) for the switch first. Even if HABP is not enabled, the client can still configure the switch to work as an HABP client, although this has no effect.
  • Page 619 Interval (in seconds) to send HABP request packets. This argument ranges from 5 to 600. Description Use the habp timer command to set the interval for a switch to send HABP request packets. Use the undo habp timer command to revert to the default interval.
  • Page 620 3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Chapter 1 AAA & RADIUS & HWTACACS Configuration Commands ... 1-1 1.1 AAA Configuration Commands... 1-1 1.1.1 access-limit... 1-1 1.1.2 attribute ... 1-2 1.1.3 cut connection ... 1-3 1.1.4 display connection...
  • Page 621 3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD 1.2.16 reset stop-accounting-buffer ... 1-40 1.2.17 retry ... 1-41 1.2.18 retry realtime-accounting... 1-42 1.2.19 retry stop-accounting... 1-43 1.2.20 secondary accounting ... 1-44 1.2.21 secondary authentication ... 1-45 1.2.22 server-type ... 1-46 1.2.23 state...
  • Page 622 3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Chapter 1 AAA & RADIUS & HWTACACS Configuration Commands 1.1 AAA Configuration Commands 1.1.1 access-limit Syntax access-limit { disable | enable max-user-number } undo access-limit View ISP domain view...

  • Page 623: Chapter 1 Aaa & Radius & Hwtacacs Configuration Commands

    7200. access-limit max-user-number: Sets the maximum number of users who can access the switch with current user name. The value of max-user-number ranges from 1 to 4096. vlan vlan-id: Sets the VLAN to which the user is bound; that is, sets which VLAN the user belongs to.

  • Page 624: Cut Connection

    Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Note: If the accounting optional switch is turned on (with the accounting optional command) in the ISP domain to which the local user belongs or the RADIUS scheme referenced by the ISP, you cannot limit the number of accesses by the local user. That is, the attribute access-limit command does not take effect.

  • Page 625: Display Connection

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD vlan vlan-id: Cuts down all user connections of the specified VLAN. vlan-id ranges from 1 to 4094. ucibindex ucib-index: Cuts down the user connection with the specified connection index.

  • Page 626: Display Domain

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD mac mac-address: Displays the connection of the user with the specified MAC address. mac-address is in dash-delimited hexadecimal notation (in the form of H-H-H). radius-scheme radius-scheme-name: Displays all user connections using the specified RADIUS scheme.
  • Page 627 3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Description Use the display domain command to display the configuration information about one specific or all ISP domains. If you execute this command without specifying any argument, the configuration of all ISP domains will be displayed.

  • Page 628: Display Local-User

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Field Idle-cut Self-service Messenger Time 1.1.6 display local-user Syntax display local-user [ domain isp-name | idle-cut { enable | disable } | service-type { telnet | ftp | ssh | terminal | lan-access } | state { active | block } | user-name...

  • Page 629: Idle-Cut

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD user-name user-name: Displays the local user who has the specified user name. user-name is a character string of up to 80 characters. The string cannot contain the following characters: /:*?<>. It can contain no more than one @ character. The pure user name (user ID, that is, the part before @) can contain no more than 55 characters.
  • Page 630 (such as aabbcc.net in the above example) after "@" is the name of the ISP domain. When implementing access control, for ISP users with the name format userid@isp-name, a 3Com series Ethernet switch uses the userid as the username for authentication and uses "isp-name" for domain name.
  • Page 631 (such as the RADIUS scheme used), for each ISP domain in ISP domain view. For the switch, each access user belongs to an ISP domain. You can configure up to 16 ISP domains in the system. If the specified ISP domain does not exist when you issue this command, the system creates a new ISP domain.

  • Page 632: Level

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Related command: domain. Example # Allow users in ISP domain aabbcc.net to enable the idle-cut attribute in user template (that is, allow the user to use the idle-cut function), with the maximum idle time of 50 minutes and the minimum data flow of 500 bytes.

  • Page 633: Local-User

    (generally, this type of users are Ethernet access users, for example, 802.1x users), ssh, and terminal (this type of users are terminal users who log into the switch through the Console port). all: Specifies all local users.

  • Page 634: Local-User Password-Display-Mode

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD 1.1.11 local-user password-display-mode Syntax local-user password-display-mode { cipher-force | auto } undo local-user password-display-mode View System view Parameter cipher-force: Adopts the forcible cipher mode so that the passwords of all local users must be displayed in cipher text.

  • Page 635: Name

    Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Parameter limit: Time limit in minutes, ranging from 1 to 60. The switch will send prompt messages at regular intervals to users whose remaining online time is less than this limit. interval: Interval to send prompt messages (in minutes). This argument ranges from 5 to 60 and must be a multiple of 5.
  • Page 636 3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Parameter string: VLAN Name for VLAN assignment, a character string of up to 32 characters. Description Use the name command to set a VLAN name, which will be used for VLAN assignment.

  • Page 637: Radius-Scheme

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Description Use the password command to set a password for the local user. Use the undo password command to cancel the password configured. Note that, after the local-user password-display-mode cipher-force command is...

  • Page 638: Scheme

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Example # Specify the scheme "3Com" as the RADIUS scheme to be used by current ISP domain "aabbcc.net". <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] domain aabbcc.net New Domain added.

  • Page 639: Self-Service-Url

    Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Related command: radius scheme and display radius Example # Specify the RADIUS scheme "3Com" as the AAA scheme referenced by the ISP domain "aabbcc.net". <3Com>system-view System View: return to User View with Ctrl+Z.

  • Page 640: Service-Type

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Then, the user can change the password. A user can choose the [change user password] option on the client only after passing the authentication. If the user fails the authentication, this option is in grey and is unavailable.

  • Page 641: State

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Description Use the service-type command to authorize the user to access the specified type(s) of service(s). Use the undo service-type command to inhibit the user from accessing the specified type(s) of service(s).

  • Page 642: Vlan-Assignment-Mode

    Use the vlan-assignment-mode command to set the VLAN assignment mode (integer or string) on the switch. By default, the VLAN assignment mode is integer, that is, the switch supports its RADIUS authentication server to assign integer VLAN IDs. The dynamic VLAN assignment feature enables a switch to dynamically add the ports...
  • Page 643 RADIUS authentication server, the switch compares the ID with existing VLAN names on the switch. If it finds a match, it adds the port to the corresponding VLAN. Otherwise, the VLAN assignment fails and the user cannot pass the authentication.

  • Page 644: Radius Configuration Commands

    VLAN ID: the switch transforms the string to an integer value and judges if the value is in the valid VLAN ID range; if it is, the switch adds the authenticated port to the VLAN with the value as the VLAN ID (VLAN 1024, for example).
  • Page 645 Once the CAMS receives the Accounting-On packet, it sends a response to the switch. At the same time it finds and deletes the original online information of the users who accessed the network through the switch before the restart according to the information contained in this packet (NAS-ID, NAS-IP address and session ID), and ends the accounting of the users based on the last accounting update packet.

  • Page 646: Accounting Optional

    NAS-IP address with the nas-ip command. If you choose to manually configure this attribute, be sure to configure an appropriate and legal IP address. If this attribute is not configured, the switch will automatically use the IP address of the VLAN interface as the NAS-IP address.

  • Page 647: Data-Flow-Format

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD After the accounting optional command is used for a RADIUS scheme, the system will no longer send real-time accounting update packets and stop-accounting packets for any user who adopts the RADIUS scheme.

  • Page 648: Display Local-Server Statistics

    # Specify to measure data and packets in data flows sent to RADIUS server in kilobytes and kilo-packets respectively. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] radius scheme radius1 [3Com-radius-radius1] data-flow-format data kilo-byte packet kilo-packet 1.2.4 display local-server statistics Syntax display local-server statistics View...
  • Page 649 3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD View Any view Parameter radius-scheme-name: Name of a RADIUS scheme, a character string of up to 32 characters. If this argument is not specified, this command displays the configuration information about all RADIUS schemes.

  • Page 650: Display Radius Statistics

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Table 1-4 Description on the fields of the display radius command Field SchemeName Index Type Primary Auth IP/ Port/ State Primary Acct IP/ Port/ State Second Auth IP/ Port/ State...
  • Page 651 3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Description Use the display radius statistics command to display the statistics about RADIUS packets, so as to troubleshoot RADIUS configuration. Related command: radius scheme. Example # Display the statistics about RADIUS packets.

  • Page 652: Key

    The displayed packet information helps you to diagnose and resolve problems relevant to RADIUS. When the switch sends out a stop-accounting packet but gets no response from the RADIUS server, it first buffers the packet and then retransmits it until the maximum number of retransmission attempts (set by the retry stop-accounting command) is reached.
  • Page 653 Sets a shared key for the RADIUS authentication/authorization packets. string: Shared key, a character string of up to 16 characters. It is "3Com" by default. Description Use the key command to set a shared key for the RADIUS authentication/authorization packets or accounting packets.

  • Page 654: Local-Server

    By default, a local RADIUS authentication server is used, whose default NAS-IP and key are 127.0.0.1 and 3Com respectively. That is, the local device serves as a RADIUS authentication server and a network access server, and all authentications are performed locally.

  • Page 655: Nas-Ip

    Class-D address. Description Use the nas-ip command to set the source IP address used by the switch to send RADIUS packets. Use the undo nas-ip command to remove the source IP address setting.

  • Page 656: Primary Accounting

    Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Related command: display radius and radius nas-ip. Example # Set the source IP address used by the switch to send the RADIUS packets to 10.1.1.1. <3Com>system-view System View: return to User View with Ctrl+Z.

  • Page 657: Primary Authentication

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Related command: key, radius scheme and state. Example # Set the IP address and UDP port number of the primary accounting server of the RADIUS scheme radius1 to 10.110.1.2 and 1813.

  • Page 658: Radius Nas-Ip

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD accounting server. At the same time, you should keep the RADIUS service port settings on the switch consistent with those on the RADIUS servers. Related command: key, radius scheme and state.

  • Page 659: Radius Scheme

    IP address will overwrite the old one. Related command: nas-ip. Example # Set the source address used by the switch to send the RADIUS packets to 129.10.10.1. <3Com> system-view System View: return to User View with Ctrl+Z.

  • Page 660: Reset Radius Statistics

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD A RADIUS scheme can be referenced by multiple ISP domains simultaneously. You can configure up to 16 RADIUS schemes, including the default scheme "system". The undo radius scheme command cannot be used to delete the default RADIUS scheme.

  • Page 661: Reset Stop-Accounting-Buffer

    Use the reset stop-accounting-buffer command to delete the buffered no-response stop-accounting request packets. When the switch sends out a stop-accounting packet but gets no response from the RADIUS server, it first buffers the packet and then retransmits it until the maximum number of retransmission attempts (set by the retry stop-accounting command) is reached.

  • Page 662: Retry

    Note that: The communication in RADIUS is unreliable because this protocol adopts UDP packets to carry data. Therefore, it is necessary for the switch to retransmit a RADIUS request if it gets no response from the RADIUS server after the response timeout timer expires.

  • Page 663: Retry Realtime-Accounting

    To make the switch cooperate with this feature on the RADIUS server, it is necessary to cut down the...

  • Page 664: Retry Stop-Accounting

    Related command: radius scheme and timer realtime-accounting. Example # Allow the switch to continuously send at most 10 real-time accounting requests for the RADIUS scheme radius1. <3Com>system-view System View: return to User View with Ctrl+Z.

  • Page 665: Secondary Accounting

    RADIUS accounting server. If the RADIUS server does not respond to such a request, the switch should first buffer the request on itself, and then retransmit the request to the RADIUS accounting server until it gets a response, or the maximum number of transmission attempts is reached (in this case, it discards the request).

  • Page 666: Secondary Authentication

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Related command: key, radius scheme and state. Example # Set the IP address and UDP port number of the secondary accounting server of the RADIUS scheme radius1 to 10.110.1.1 and 1813.

  • Page 667: Server-Type

    RADIUS scheme view Parameter 3Com: Specifies that the switch supports 3Com's RADIUS server. That is, it is required that the RADIUS client (on the switch) and the RADIUS server (generally the CAMS) interact with each other. by using 3Com's proprietary RADIUS protocol (such as the procedure and packet format) standard: Specifies to use the standard RADIUS protocol.
  • Page 668 3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD View RADIUS scheme view Parameter primary: Specifies the server to be set is a primary RADIUS server. secondary: Specifies the server to be set is a secondary RADIUS server.

  • Page 669: Stop-Accounting-Buffer Enable

    RADIUS accounting server. If the RADIUS accounting server does not respond to such a request, the switch should first buffer the request on itself, and then retransmit the request to the RADIUS accounting server until it gets a response, or the maximum number of transmission attempts is reached (in this case, it discards the request).

  • Page 670: Timer

    RADIUS service. This wait time is called response timeout time of RADIUS server; and the timer in the switch system that is used to control this time is called the response timeout timer of RADIUS server. You can use the timer command to set the timeout time of this timer.

  • Page 671: Timer Quiet

    After confirming that no response will be received from the primary server, the switch starts to send RADIUS packets to the secondary RADIUS server. At the interval of wait time, the switch sets the state of the primary server to active and sends RADIUS packets to the primary server.

  • Page 672: Timer Response-Timeout

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Parameter minutes: Real-time accounting interval. It ranges from 3 minutes to 60 minutes and must be a multiple of 3. By default, this interval is 12 minutes. Description Use the timer realtime-accounting command to set the real-time accounting interval.

  • Page 673: User-Name-Format

    RADIUS service. This wait time is called response timeout time of RADIUS servers; and the timer in the switch system that is used to control this time is called the response timeout timer of RADIUS servers. You can use the timer response-timeout command to set the timeout time of this timer.
  • Page 674 3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Parameter with-domain: Specifies to include ISP domain names in the user names to be sent to RADIUS servers. without-domain: Specifies to exclude ISP domain names from the user names to be sent to RADIUS servers.

  • Page 675: Hwtacacs Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD 1.3 HWTACACS Configuration Commands 1.3.1 data-flow-format Syntax data-flow-format data { byte | giga-byte | kilo-byte | mega-byte } data-flow-format packet { giga-packet | kilo-packet | mega-packet | one-packet }...

  • Page 676: Display Hwtacacs

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] hwtacacs scheme test1 [3Com- hwtacacs-test1] data-flow-format data kilo-byte [3Com- hwtacacs-test1] data-flow-format packet kilo-packet 1.3.2 display hwtacacs Syntax...
  • Page 677 3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD key authentication key authorization key accounting Quiet-interval(min) Response-timeout-Interval(sec) Domain-included Traffic-unit Packet traffic-unit ------------------------------------------------------------- Total 1,1 printed 1.3.3 display stop-accounting-buffer Syntax display stop-accounting-buffer { hwtacacs-scheme hwtacacs-scheme-name | session-id session-id | time-range start-time stop-time | user-name user-name }...

  • Page 678: Hwtacacs Nas-Ip

    Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Related command: reset stop-accounting-buffer, stop-accounting-buffer enable, and retry stop-accounting. Example # Display the stop-accounting requests buffered in the HWTACACS scheme “3Com". <3Com> display stop-accounting-buffer hwtacacs-scheme 3Com 1.3.4 hwtacacs nas-ip Syntax hwtacacs nas-ip ip-address...

  • Page 679: Hwtacacs Scheme

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD 1.3.5 hwtacacs scheme Syntax hwtacacs scheme hwtacacs-scheme-name undo hwtacacs scheme hwtacacs-scheme-name undo hwtacacs scheme hwtacacs-scheme-name View System view Parameter hwtacacs-scheme-name: Specifies an HWTACACS server scheme, with a character string of up to characters.

  • Page 680: Nas-Ip

    Use the undo key command to delete the configuration. By default, no key is set for any HWTACACS server. The TACACS client (on the switch) and the TACACS server use the MD5 algorithm to encrypt the HWTACACS packets communicated between them. They authenticate packets by using shared keys.

  • Page 681: Primary Accounting

    By default, the source IP address of the packets is the IP address of the sending interface. Related command: display hwtacacs and hwtacacs nas-ip. Example # Set the source IP address of the HWTACACS packets sent by the NAS (switch) to 10.1.1.1. <3Com> system-view System View: return to User View with Ctrl+Z.

  • Page 682: Primary Authentication

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Note that: You are not allowed to assign the same IP address to both primary and secondary accounting servers; otherwise, unsuccessful operation is prompted. If you repeatedly use this command, the latest configuration overwrites the previous one.

  • Page 683: Primary Authorization

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD You can remove an authentication server only when it is not being used by any active TCP connections, and the removal impacts only packets forwarded afterwards. Related command: display hwtacacs.

  • Page 684: Reset Hwtacacs Statistics

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Example # Configure a primary authorization server. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] hwtacacs scheme test1 [3Com-hwtacacs-test1] primary authorization 10.163.155.13 49 1.3.11 reset hwtacacs statistics...

  • Page 685: Retry Stop-Accounting

    32 characters. Description Use the reset stop-accounting-buffer command to clear the stop-accounting requests that have no response and are buffered on the switch. Related command: stop-accounting-buffer enable, retry stop-accounting, display stop-accounting-buffer. Example # Delete the buffered stop-accounting requests that are according to the HWTACACS scheme “3Com”.

  • Page 686: Secondary Accounting

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD Parameter retry-times: Maximum number of real-time stop-accounting request attempts. It is in the range 1 to 300 and defaults to 100. Description Use the retry stop-accounting command to enable stop-accounting packet retransmission and configure the maximum number of stop-accounting request attempts.

  • Page 687: Secondary Authentication

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD By default, the IP address of TACACS accounting server is 0.0.0.0. Note that: You are not allowed to assign the same IP address to both primary and secondary accounting servers;...

  • Page 688: Secondary Authorization

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD You can remove an authentication server only when it is not being used by any active TCP connections. Related command: display hwtacacs. Example # Configure a secondary server.

  • Page 689: Stop-Accounting-Buffer Enable

    Stop-accounting requests are critical to billing and will eventually affect the charges; they are important for both the users and the ISP. Therefore, the switch should do its best to transmit them to the HWTACACS accounting server. If the HWTACACS...

  • Page 690: Timer Quiet

    The switch does not send user request packets to the server until the wait time of the switch is equal to or greater than the time configured with the timer quiet command.
  • Page 691 Note that: Real-time accounting interval is necessary for real-time accounting. After an interval value is set, the switch transmits the accounting information of online users to the TACACS accounting server at intervals of this value. The setting of real-time accounting interval depends somewhat on the performance of the switch and the TACACS server: A shorter interval requires higher device performance.

  • Page 692: Timer Response-Timeout

    3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD 1.3.20 timer response-timeout Syntax timer response-timeout seconds undo timer response-timeout View HWTACACS scheme view Parameter seconds: Length of the response timer in seconds. It ranges from 1 to 300 and defaults to 5.
  • Page 693 Note that: The supplicants are generally named in userid@isp-name format. The part following the @ sign is the ISP domain name, according to which the switch assigns a user to the corresponding ISP domain. However, some earlier TACACS servers reject the user name including an ISP domain name. In this case, the user name is sent to the TACACS server after its domain name is removed.

  • Page 694: Chapter 2 Ead Configuration Commands

    You may specify up to eight security policy servers in a RADIUS scheme. Each RADIUS scheme supports at most eight IP addresses of security policy servers. The switch only responds to the session control packets coming from the authentication server and security policy server.
  • Page 695 3Com Switch 7750 Series Command Reference Guide – AAA, RADIUS, HWTACACS, EAD user-name-format without-domain … Chapter 2 EAD Configuration Commands...
  • Page 696 3Com Switch 7750 Series Command Reference Guide – VRRP & HA Chapter 1 VRRP Configuration Commands ... 1-1 1.1 VRRP Configuration Commands ... 1-1 1.1.1 debugging vrrp ... 1-1 1.1.2 display vrrp ... 1-1 1.1.3 reset vrrp statistics ... 1-3 1.1.4 vrrp authentication-mode ...

  • Page 697: Debugging Vrrp

    3Com Switch 7750 Series Command Reference Guide – VRRP & HA Chapter 1 VRRP Configuration Commands 1.1 VRRP Configuration Commands 1.1.1 debugging vrrp Syntax debugging vrrp { state | packet } undo debugging vrrp { state | packet } View...
  • Page 698 If both the interface index and backup group ID are specified, the statistics about the specified backup group on the interface is displayed. Example # Display the statistics about all the backup groups on the switch. <3Com> display vrrp statistics Interface...

  • Page 699: Reset Vrrp Statistics

    Use the reset vrrp command to clear the statistics information about VRRP. When you execute this command, If the interface index and backup group ID are not specified, the statistics information about all the backup groups on the switch is cleared. Chapter 1 VRRP Configuration Commands Description...

  • Page 700: Vrrp Authentication-Mode

    3Com Switch 7750 Series Command Reference Guide – VRRP & HA If only the interface index is specified, the statistics information about all the backup groups on the interface will be cleared. If both the interface index and backup group ID are specified, the statistics information about the specified backup group on the interface is cleared.

  • Page 701: Vrrp Method

    View System view Parameter real-mac: Maps the real MAC address of a Layer 3 switch routing interface to virtual router IP addresses. virtual-mac: Maps the virtual MAC address to virtual router IP addresses of backup groups. Description Use the vrrp method command to map the MAC address of a backup group to the virtual router IP addresses.

  • Page 702: Vrrp Ping-Enable

    3Com Switch 7750 Series Command Reference Guide – VRRP & HA Example # Map the real MAC address of a routing interface to a virtual router IP address. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] vrrp method real-mac 1.1.6 vrrp ping-enable...
  • Page 703 You can configure an Switch 7750 series switch to operate in preemptive mode. You can also set the delay period. A backup switch waits for a period of time (the delay period) before becoming a master switch.

  • Page 704: Vrrp Vrid Priority

    Note that the priority of 0 is reserved for special use, and the priority of 255 is for IP address owners. That is, the priority of a switch that owns a virtual router IP address is fixed to 255 and cannot be modified.

  • Page 705: Vrrp Vrid Timer Advertise

    VRRP packets. This argument ranges from 1 to 255. Description Use the vrrp vrid timer advertise command to set the interval for the master switch of a backup group to send VRRP packets. Use the undo vrrp vrid timer advertise command to revert to the default interval.
  • Page 706 Each backup group can track up to eight VLAN interfaces/Ethernet ports. Example # Configure VLAN 2 interface to track VLAN 1 interface and specify the priority of the master switch of backup group 1 (on VLAN 2 interface) decreases by 50 when VLAN 1 interface goes down. <3Com> system-view System View: return to User View with Ctrl+Z.

  • Page 707: Vrrp Vrid Virtual-Ip

    3Com Switch 7750 Series Command Reference Guide – VRRP & HA [3Com] interface Vlan-interface 2 [3Com-Vlan-interface2] vrrp vrid 1 track vlan-interface 1 reduced 50 1.1.11 vrrp vrid virtual-ip Syntax vrrp vrid virtual-router-id virtual-ip virtual-address undo vrrp vrid virtual-router-id [ virtual-ip virtual-address ]...
  • Page 708 3Com Switch 7750 Series Command Reference Guide – VRRP & HA # Remove a backup group. [3Com-Vlan-interface2] undo vrrp vrid 1 Chapter 1 VRRP Configuration Commands 1-12...

  • Page 709: Display Switchover State

    3Com Switch 7750 Series Command Reference Guide – VRRP & HA Chapter 2 HA Configuration Commands 2.1 HA Configuration Commands 2.1.1 display switchover state Syntax display switchover state [ slot-id ] View Any view Parameter slot-id: Slot number of master/slave board.

  • Page 710: Slave Restart

    3Com Switch 7750 Series Command Reference Guide – VRRP & HA Description Use slave auto-update config command to enable the automatic synchronization of configuration files between the master/slave systems. Use the undo slave auto-update config command to disable the automatic synchronization.

  • Page 711: Slave Update Configuration

    3Com Switch 7750 Series Command Reference Guide – VRRP & HA View User view Parameter None Description Use the slave switchover command to perform master/slave switchover manually. When the slave board operates normally and the master board is in the real-time backup state, if you want the slave board to operate in place of the master board, you can use this command to implement master/slave switchover.
  • Page 712 3Com Switch 7750 Series Command Reference Guide – VRRP & HA Now saving the current configuration to the slave board. Please wait... The configuration has been saved to the slave board successfully. Chapter 2 HA Configuration Commands...
  • Page 713 3Com Switch 7750 Series Command Reference Guide – ARP Chapter 1 ARP Configuration Commands ... 1-1 1.1 ARP Configuration Commands... 1-1 1.1.1 arp check enable ... 1-1 1.1.2 arp max-entry ... 1-1 1.1.3 arp max-dynamic-entry ... 1-2 1.1.4 arp proxy enable... 1-3 1.1.5 arp proxy source-vlan enable...

  • Page 714: Chapter 1 Arp Configuration Commands

    Use the undo arp check enable command to disable the ARP entry checking function. In this case, a switch creates multicast MAC address ARP entries for MAC addresses learned. By default, the ARP entry checking function is enabled.

  • Page 715: Arp Max-Dynamic-Entry

    3Com Switch 7750 Series Command Reference Guide – ARP Parameter number: The maximum number of the ARP entries, in the range of 4,096 to 8,192. Description Use the arp max-entry command to set the limit of the total number of the ARP entries.

  • Page 716: Arp Proxy Enable

    Use the undo arp proxy enable command to disable ARP proxy function. With the arp proxy enable command configured, a switch can realize the communication between hosts (belong to different VLAN) connected to the switch through its layer 3 forwarding function.

  • Page 717: Arp Source-Suppression Limit

    IP address) sent to the CPU at a time. local: Sets the maximum number of ARP packets (with the same source IP addresses, and the destination IP address is the IP address of the current switch) sent to the CPU at a time.

  • Page 718: Arp Static

    Command Reference Guide – ARP through: Sets the maximum number of ARP packets (with the same source IP addresses, and the destination IP address is not the IP address of the current switch) sent to the CPU at a time.

  • Page 719: Arp Timer Aging

    Use the arp static command to create a static ARP mapping entry. Use the undo arp command to remove an ARP mapping entry. The system ARP mapping table is empty when a switch is just started. And the dynamic address mapping entries are generated by ARP.

  • Page 720: Display Arp

    3Com Switch 7750 Series Command Reference Guide – ARP Description Use the arp timer aging command to configure the aging time for dynamic ARP mapping entries. Use the undo arp timer aging command to restore the default aging time. By default, the aging time for dynamic ARP mapping entries is 20 minutes.
  • Page 721 3Com Switch 7750 Series Command Reference Guide – ARP 192.168.0.2 192.168.0.200 192.168.0.45 192.168.0.110 192.168.0.32 192.168.0.3 192.168.0.17 192.168.0.115 192.168.0.43 192.168.0.33 192.168.0.35 192.168.0.5 14 entries found Table 1-1 Description on the fields of the display arp command Field IP Address MAC Address...

  • Page 722: Display Arp Entry-Limit

    3Com Switch 7750 Series Command Reference Guide – ARP text: String used to filter ARP mapping entries. Description Use the display arp | command to display the ARP mapping entries related to string in a specified way. Related command: arp static, reset arp.

  • Page 723: Display Arp Interface

    Interface-number: Port number. Description Use this command to display the ARP mapping table of a specified port. Example # Display the ARP mapping table of the Ethernet3/0/1. <3Com> display arp interface ethernet 3/0/1 Type: S-Static IP Address MAC Address 10.1.1.2...

  • Page 724: Display Arp Proxy

    Use the display arp proxy command to display ARP proxy state: enabled/disabled. Related command: arp proxy enable. Example # Display ARP proxy state for VLAN 2 interface. <3Com> display arp proxy interface Vlan-interface 2 Interface Vlan-interface2 Proxy ARP status: disabled 1.1.14 display arp slot...

  • Page 725: Display Arp Source-Suppression

    3Com Switch 7750 Series Command Reference Guide – ARP Type: S-Static IP Address MAC Address 10.1.1.2 00e0-fc01-0102 1 1.1.15 display arp source-suppression Syntax display arp source-suppression View Any view Parameter None Description Use the display arp source-suppression command to display the ARP source suppression configuration information about the current switch.

  • Page 726: Display Arp Timer Aging

    3Com Switch 7750 Series Command Reference Guide – ARP Example # Display the ARP mapping table of VLAN1. <3Com> display arp vlan 1 Type: S-Static IP Address MAC Address 10.1.1.2 00e0-fc01-0102 1 1.1.17 display arp timer aging Syntax display arp timer aging...

  • Page 727: Reset Arp

    With the gratuitous ARP packet learning function enabled, a switch operates as follows when receiving a gratuitous ARP packet: If the cache of the switch contains ARP mapping entries that match the packet, the switch updates the ARP mapping entries using the sender hardware address carried in the gratuitous ARP packet.
  • Page 728 3Com Switch 7750 Series Command Reference Guide – ARP Example # Clear static ARP mapping entries. <3Com> reset arp static Chapter 1 ARP Configuration Commands 1-15...
  • Page 729 3Com Switch 7750 Series Command Reference Guide – DHCP Chapter 1 DHCP Server Configuration Commands ... 1-1 1.1 DHCP Server Configuration Commands ... 1-1 1.1.1 dhcp enable... 1-1 1.1.2 dhcp select global ... 1-1 1.1.3 dhcp select interface ... 1-2 1.1.4 dhcp server detect...
  • Page 730 3Com Switch 7750 Series Command Reference Guide – DHCP 2.1.1 address-check ... 2-1 2.1.2 address-check dhcp-relay ... 2-1 2.1.3 address-check no-matched... 2-2 2.1.4 dhcp relay information enable ... 2-3 2.1.5 dhcp relay information strategy ... 2-4 2.1.6 dhcp-security static ... 2-5 2.1.7 dhcp-security tracker...

  • Page 731: Dhcp Server Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – DHCP Chapter 1 DHCP Server Configuration Commands 1.1 DHCP Server Configuration Commands 1.1.1 dhcp enable Syntax dhcp enable undo dhcp enable View System view Parameter None Description Use the dhcp enable command to enable DHCP.

  • Page 732: Dhcp Select Interface

    3Com Switch 7750 Series Command Reference Guide – DHCP dhcp select global { interface interface-type interface-number [ to interface-type interface-number ] | all } undo dhcp select global { interface interface-type interface-number [ to interface-type interface-number ] | all }...

  • Page 733: Dhcp Server Detect

    3Com Switch 7750 Series Command Reference Guide – DHCP dhcp select interface { interface interface-type interface-number [ to interface-type interface-number ] | all } undo dhcp select interface { interface interface-type interface-number [ to interface-type interface-number ] | all }...

  • Page 734: Dhcp Server Dns-List

    3Com Switch 7750 Series Command Reference Guide – DHCP Parameter None Description Use the dhcp server detect command to enable the unauthorized DHCP server detecting function. Use the undo dhcp server detect command to disable the unauthorized DHCP server detecting function.

  • Page 735: Dhcp Server Domain-Name

    3Com Switch 7750 Series Command Reference Guide – DHCP interface interface-type interface-number [ to interface-type interface-number ]: Specifies the interface(s), through which you can specify the corresponding interface address pools. all: (In comparison with the ip-address argument) Specifies all DNS server IP addresses.

  • Page 736: Dhcp Server Expired

    3Com Switch 7750 Series Command Reference Guide – DHCP Parameter domain-name: Domain name of the DHCP clients whose IP addresses are from the specified interface address pool(s). This argument is a string of 3 to 50 characters. interface interface-type interface-number [ to interface-type interface-number ]: Specifies the interface(s), through which you can specify the corresponding interface address pool(s).

  • Page 737: Dhcp Server Forbidden-Ip

    # Set the lease time of the IP addresses in all interface address pools to be 1 day, 2 hours and 3 minutes. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] dhcp server expired day 1 hour 2 minute 3 all 1.1.8 dhcp server forbidden-ip Syntax dhcp server forbidden-ip low-ip-address [ high-ip-address ]...

  • Page 738: Dhcp Server Ip-Pool

    # Forbid the IP addresses in the range 10.110.1.1 to 10.110.1.63 to be automatically assigned. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] dhcp server forbidden-ip 10.110.1.1 10.110.1.63 1.1.9 dhcp server ip-pool Syntax dhcp server ip-pool pool-name...

  • Page 739: Dhcp Server Nbns-List

    3Com Switch 7750 Series Command Reference Guide – DHCP Use the undo dhcp server ip-pool command to remove a specified DHCP address pool. By default, no global DHCP address pool is created. Related command: dhcp enable. Example # Create DHCP address pool 0.

  • Page 740: Dhcp Server Netbios-Type

    # Configure the NetBIOS server IP address 10.12.1.99 for all the DHCP interface address pools. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] dhcp server nbns-list 10.12.1.99 all 1.1.11 dhcp server netbios-type Syntax VLAN interface view: dhcp server netbios-type { b-node | h-node | m-node | p-node }...

  • Page 741: Dhcp Server Option

    3Com Switch 7750 Series Command Reference Guide – DHCP m-node: Specifies the m-typed mixed type. Nodes of this type are p-nodes with some broadcasting features. (The character m here stands for mixed.) h-nodeSpecifies the hybrid type. Nodes of this type are b-nodes with peer-to-peer communicating features.

  • Page 742: Dhcp Server Ping

    # Configure option 100 to be 0x11 and 0x22 for all DHCP interface address pools. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] dhcp server option 100 hex 11 22 all 1.1.13 dhcp server ping Syntax dhcp server ping { packets number | timeout milliseconds }...

  • Page 743: Dhcp Server Static-Bind

    # Set the maximum number of the packets the DHCP server sends in a ping test to 10, and the timeout time of each packet to 500 milliseconds. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] dhcp server ping packets 10 1.1.14 dhcp server static-bind Syntax dhcp server static-bind ip-address ip-address mac-address mac-address...

  • Page 744: Display Dhcp Server Conflict

    Use the display dhcp server conflict command to display the statistics of IP address conflicts on the DHCP server. Related command: reset dhcp server conflict. Example # Display the statistics of IP address conflicts. <3Com> display dhcp server conflict all Address Chapter 1 DHCP Server Configuration Commands dhcp server...

  • Page 745: Display Dhcp Server Expired

    DHCP server assigns the IP addresses that are expired to DHCP clients. Example # Display the lease expiration information about the IP addresses in all DHCP address pools. <3Com> display dhcp server expired all Global pool: IP address Hardware address Chapter 1 DHCP Server Configuration Commands...

  • Page 746: Display Dhcp Server Free-Ip

    3Com Switch 7750 Series Command Reference Guide – DHCP Interface pool: IP address Hardware address --- total 0 entry --- Table 1-2 Description on the fields of the display dhcp server expired command Field Global pool Interface pool IP address...

  • Page 747: Display Dhcp Server Ip-In-Use

    IP address, the specified DHCP address pool(s) or all DHCP address pools. Related command: reset dhcp server ip-in-use. Example # Display the address binding information of all DHCP address pools. <3Com> display dhcp server ip-in-use all Global pool: IP address Hardware address 2.2.2.2...

  • Page 748: Display Dhcp Server Statistics

    3Com Switch 7750 Series Command Reference Guide – DHCP Table 1-3 Description on the fields of the display dhcp server ip-in-use command Field Global pool Interface pool IP address Hardware address Lease expiration Type 1.1.19 display dhcp server statistics Syntax...
  • Page 749 3Com Switch 7750 Series Command Reference Guide – DHCP Expire: Interface Pool: Pool Number: Binding Auto: Manual: Expire: Boot Request: Dhcp Discover: Dhcp Request: Dhcp Decline: Dhcp Release: Dhcp Inform: Boot Reply: Dhcp Offer: Dhcp Ack: Dhcp Nak: Bad Messages:...

  • Page 750: Display Dhcp Server Tree

    Use the display dhcp server tree command to display information about address pool tree. Example # Display the information about address pool tree. <3Com> display dhcp server tree all Global pool: Pool name: 5 network 10.10.1.0 mask 255.255.255.0 Child node:6 Sibling node:7 option 10 ip-address 255.0.0.0...
  • Page 751 3Com Switch 7750 Series Command Reference Guide – DHCP Pool name: 6 static-bind ip-address 10.10.1.2 mask 255.0.0.0 static-bind mac-address 00e0-00fc-0001 Parent node:5 option 10 ip-address 255.255.0.0 expired 1 0 0 Pool name: 7 network 10.10.1.64 mask 255.255.255.192 PrevSibling node:5 option 10 ip-address 255.0.0.0 gateway-list 2.2.2.2...

  • Page 752: Dns-List

    3Com Switch 7750 Series Command Reference Guide – DHCP Field Child node:6 option expired gateway-list dns-list domain-name nbns-list 1.1.21 dns-list Syntax dns-list ip-address&<1-8> Chapter 1 DHCP Server Configuration Commands Description The address pool 6 is the child node of this node.
  • Page 753 3Com Switch 7750 Series Command Reference Guide – DHCP undo dns-list { ip-address | all } View DHCP address pool view Parameter ip-address&<1-8>: IP address of a DNS server. &<1-8> string means you can provide up to eight DNS server IP addresses. When inputting more than one IP address, separate two neighboring IP addresses with a space.

  • Page 754: Expired

    3Com Switch 7750 Series Command Reference Guide – DHCP Description Use the domain-name command to configure a domain name for the DHCP clients of a global DHCP address pool. Use the undo domain-name command to remove the domain name. By default, no domain name is configured for the DHCP clients of a global DHCP address pool.

  • Page 755: Gateway-List

    # Set the lease time of the IP addresses in the global DHCP address pool 0 to 1 day, 2 hours and 3 minutes. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] dhcp server ip-pool 0 [3Com-dhcp-pool-0] expired day 1 hour 2 minute 3 1.1.24 gateway-list Syntax gateway-list ip-address&<1-8> undo gateway-list { ip-address | all }...

  • Page 756: Nbns-List

    3Com Switch 7750 Series Command Reference Guide – DHCP 1.1.25 nbns-list Syntax nbns-list ip-address&<1-8> undo nbns-list { ip-address | all } View DHCP address pool view Parameter ip-address&<1-8>: IP address of a NetBIOS server. &<1-8> means you can provide up to eight NetBIOS server IP addresses.

  • Page 757: Network

    3Com Switch 7750 Series Command Reference Guide – DHCP View DHCP address pool view Parameter b-node: Specifies the broadcast type. Nodes of this type acquire host name-to-IP address mapping by broadcasting. p-node: Specifies the peer-to-peer type. Nodes of this type acquire host name-to-IP address mapping by communicating with the NetBIOS server.
  • Page 758 3Com Switch 7750 Series Command Reference Guide – DHCP If neither subnet mask nor mask length is specified in this command, the default subnet mask is adopted. Description Use the network command to configure a dynamically assigned IP address range (where IP addresses will be dynamically assigned to DHCP clients).

  • Page 759: Reset Dhcp Server Conflict

    # Configure option 100 to be 0x11 and 0x22 for the global DHCP address pools. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] dhcp server ip-pool 0 [3Com-dhcp-pool-0] option 100 hex 11 22 1.1.29 reset dhcp server conflict Syntax reset dhcp server conflict { all | ip ip-address }...

  • Page 760: Reset Dhcp Server Ip-In-Use

    Related command: display dhcp server ip-in-use. Example # Clear the dynamic address binding information about the IP address 10.110.1.1. <3Com> reset dhcp server ip-in-use ip 10.110.1.1 1.1.31 reset dhcp server statistics Syntax reset dhcp server statistics View...

  • Page 761: Static-Bind Ip-Address

    3Com Switch 7750 Series Command Reference Guide – DHCP Description Use the reset dhcp server statistics command to clear the statistics on a DHCP server, such as the number of DHCP unrecognized packets/request packets/response packets. Related command: display dhcp server statistics.

  • Page 762: Static-Bind Mac-Address

    # Bind the IP address 10.1.1.1 (with the subnet mask 255.255.255.0) to the MAC address 0000-e03f-0305. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] dhcp server ip-pool 0 [3Com-dhcp-pool-0] static-bind ip-address 10.1.1.1 mask 255.255.255.0 [3Com-dhcp-pool-0] static-bind mac-address 0000-e03f-0305 1.1.33 static-bind mac-address Syntax static-bind mac-address mac-address...
  • Page 763 3Com Switch 7750 Series Command Reference Guide – DHCP System View: return to User View with Ctrl+Z. [3Com] dhcp server ip-pool 0 [3Com-dhcp-pool-0] static-bind ip-address 10.1.1.1 mask 255.255.255.0 [3Com-dhcp-pool-0] static-bind mac-address 0000-e03f-0305 Chapter 1 DHCP Server Configuration Commands 1-33...

  • Page 764: Chapter 2 Dhcp Relay Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – DHCP Chapter 2 DHCP Relay Configuration Commands 2.1 DHCP Relay Configuration Commands 2.1.1 address-check Syntax address-check enable address-check disable View VLAN interface view Parameter None Description Use the address-check enable command to enable the address checking function of the DHCP relay.

  • Page 765: Address-Check No-Matched

    3Com Switch 7750 Series Command Reference Guide – DHCP View VLAN interface view Parameter None Description Use the address-check dhcp-relay enable command to validate the dynamic entries generated by the DHCP relay. Use the address-check dhcp-relay disable command to invalidate the dynamic entries generated by the DHCP relay.

  • Page 766: Dhcp Relay Information Enable

    3Com Switch 7750 Series Command Reference Guide – DHCP Description Use the address-check no-matched enable command to forbid freely-connected clients to pass DHCP security check. Use the address-check no-matched disable command to allow freely-connected clients to pass DHCP security check.

  • Page 767: Dhcp Relay Information Strategy

    Example # Instruct the DHCP relay to drop the DHCP request packets that carry option 82. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] dhcp relay information strategy drop Chapter 2 DHCP Relay Configuration Commands...

  • Page 768: Dhcp-Security Static

    3Com Switch 7750 Series Command Reference Guide – DHCP 2.1.6 dhcp-security static Syntax dhcp-security static ip-address mac-address undo dhcp-security { ip-address | all | dynamic | static } View System view Parameter ip-address: User IP address. mac-address: User MAC address.

  • Page 769: Dhcp-Server

    3Com Switch 7750 Series Command Reference Guide – DHCP interval: Specified refresh interval, in the range of 1 to 120 in seconds. Description Use the dhcp-security tracker command to configure the interval at which the DHCP relay refreshes the addresses entries of dynamic users.

  • Page 770: Dhcp-Server Ip

    1, so that this group contains three DHCP servers (server 1, server 2 and server 3). <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] dhcp-server 1 ip 1.1.1.1 2.2.2.2 3.3.3.3 2.1.10 display dhcp-security Syntax display dhcp-security [ ip-address | dynamic | static ]...

  • Page 771: Display Dhcp-Security Tracker

    3Com Switch 7750 Series Command Reference Guide – DHCP dynamic: Displays the dynamic user address entries. static: Displays the static user address entries. Description Use the display dhcp-security command to display one or all user address entries, or a specified type of user address entries in the valid user address table of a DHCP server group.

  • Page 772: Display Dhcp-Server

    3Com Switch 7750 Series Command Reference Guide – DHCP Example # Display the interval at which the DHCP relay refreshes the address entries of dynamic users. <3Com> display dhcp-security tracker Current tracker interval: 10s 2.1.12 display dhcp-server Syntax display dhcp-server groupNo...
  • Page 773 3Com Switch 7750 Series Command Reference Guide – DHCP DHCP_DECLINE messages: 0 DHCP_DISCOVER messages: 0 DHCP_REQUEST messages: 0 DHCP_INFORM messages: 0 DHCP_RELEASE messages: 0 BOOTP_REQUEST messages: 0 BOOTP_REPLY messages: 0 Table 2-2 Description on the fields of the display dhcp-server command...

  • Page 774: Display Dhcp-Server Interface

    # Display information about the DHCP server group to which VLAN 2 interface is mapped. <3Com> display dhcp-server interface vlan-interface 2 The DHCP server group of this interface is 2 The above display information indicates the VLAN 2 interface is mapped to DHCP server group 0.
  • Page 775 3Com Switch 7750 Series Command Reference Guide – DHCP Example # Clear the statistics information of DHCP server group 2. <3Com> reset dhcp-server 2 Chapter 2 DHCP Relay Configuration Commands 2-12...

  • Page 776: Dhcp-Snooping

    Description Use the dhcp-snooping command to enable the DHCP snooping function, so as to allow the switch to listen to the DHCP broadcast packets. Use the undo dhcp-snooping command to disable the DHCP snooping function. By default, the DHCP snooping function is disabled.

  • Page 777: Dhcp-Snooping Information Enable

    Trusted ports forward any received DHCP packets to ensure that DHCP clients can obtain IP addresses from valid DHCP servers. Untrusted ports discard the DHCP-ACK and DHCP-OFF responses received from DHCP servers. By default, all the ports of a switch are untrusted ports. Related command: display dhcp-snooping trust. Example # Set the Ethernet1/0/1 port to a trusted port.

  • Page 778: Display Dhcp-Snooping

    3Com Switch 7750 Series Command Reference Guide – DHCP Description Use the dhcp-snooping information enable command to enable DHCP-Snooping option 82. Use the undo dhcp-snooping information enable command to disable DHCP-Snooping option 82. DHCP-Snooping option 82 is disabled by default.

  • Page 779: Display Dhcp-Snooping Trust

    3Com Switch 7750 Series Command Reference Guide – DHCP 3.1.5 display dhcp-snooping trust Syntax display dhcp-snooping trust View Any view Parameter None Description Use the display dhcp-snooping trust command to display the (enabled/disabled) state of the DHCP snooping function and the trusted ports.

  • Page 780: Reset Dhcp-Snooping

    3Com Switch 7750 Series Command Reference Guide – DHCP Description Use the display dhcp-snooping vlan command to display the IP-MAC mapping relations recorded by the DHCP-Snooping-enabled switch in the specified VLAN. Example # Display the IP-MAC mapping relations recorded by the DHCP-Snooping-enabled switch in VLAN 2.
  • Page 781 3Com Switch 7750 Series Command Reference Guide – ACL Chapter 1 ACL Commands... 1-1 1.1 ACL Configuration Commands ... 1-1 1.1.1 acl... 1-1 1.1.2 acl mode... 1-2 1.1.3 acl order ... 1-3 1.1.4 display acl config ... 1-4 1.1.5 display acl config statistics ... 1-5 1.1.6 display acl mode...

  • Page 782: Acl Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – ACL Chapter 1 ACL Commands 1.1 ACL Configuration Commands Note: The A-type cards includes 3C16860, 3C16861, 3C16858, and 3C16859. 1.1.1 acl Syntax acl { number acl-number | name acl-name [ advanced | basic | link | user ] }...

  • Page 783: Acl Mode

    # Define rules for ACL 2000, and specify “depth-first” order as the rule match order. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] acl number 2000 match-order auto 1.1.2 acl mode Syntax acl mode { ip-based | link-based }...

  • Page 784: Acl Order

    3Com Switch 7750 Series Command Reference Guide – ACL Parameter ip-based: Performs traffic classification based on Layer 3 information. link-based: Performs traffic classification based on Layer 2 information. Description Use the acl mode command to set the traffic classification mode for the device.

  • Page 785: Display Acl Config

    The matched times displayed by this command is software matched times, namely, the matched times of ACL to be processed by switch CPU. You can use the traffic-statistic command to calculate the matched times of hardware during packet-forwarding.

  • Page 786: Display Acl Config Statistics

    3Com Switch 7750 Series Command Reference Guide – ACL <3Com> display acl config all Basic ACL 2000, 1 rule, rule 0 permit source 1.1.1.1 0 (0 times matched) 1.1.5 display acl config statistics Syntax display acl config statistics View Any view...

  • Page 787: Display Acl Order

    3Com Switch 7750 Series Command Reference Guide – ACL Description Use the display acl mode command to view the ACL running mode chosen by the switch for filtering the traffic. Example # Display the ACL running mode chosen by the switch.
  • Page 788 ACL entries, number of remaining ACL entries, and the corresponding start port number and end port number of each type of entry. Example # Display the remaining ACL resource on the SRPU. <3Com> display acl remaining entry slot 3 Slot: 3 Resource Total Type...

  • Page 789: Display Acl Running-Packet-Filter

    3Com Switch 7750 Series Command Reference Guide – ACL 1.1.9 display acl running-packet-filter Syntax display acl running-packet-filter { all | interface interface-type interface-number } View Any view Parameter all: Represents all the ACLs to be displayed (including those identified by a number or a name).
  • Page 790 3Com Switch 7750 Series Command Reference Guide – ACL Description Use the display time-range command to view the configuration and status of the current time range. For an active time range, this command displays “active”; for an inactive time range, this command displays “inactive”.

  • Page 791: Packet-Filter

    3Com Switch 7750 Series Command Reference Guide – ACL Table 1-3 Description of the fields of the display time-range command Field Current time 4-3-2003 Thursday Time-range : tm1 ( Inactive ) from 08:30 2-5-2005 to 18:00 2/19/2005 1.1.11 packet-filter Syntax I.
  • Page 792 3Com Switch 7750 Series Command Reference Guide – ACL the ACL combinations on service boards other than A type and the corresponding parameter description. Table 1-4 Combined application of ACLs on service board of A type Combination mode Apply all rules in an IP type ACL...
  • Page 793 3Com Switch 7750 Series Command Reference Guide – ACL Table 1-6 Parameters description of ACL combinations Parameter ip-group { acl-number | acl-name } link-group { acl-number | acl-name } user-group { acl-number | acl-name } rule-id system-index: Specifies an interior index value which is used when an ACL rule is applied to the port.

  • Page 794: Reset Acl Counter

    Use the undo packet-filter command to cancel it. Note: ARP packets are allowed to pass by default on the Switch 7750. You cannot use the packet-filter command to filter ARP packets, even though you have used the rule command to define a Layer 2 ACL, in which the argument protocol is defined as ARP.

  • Page 795: Rule (Basic Acl)

    3Com Switch 7750 Series Command Reference Guide – ACL Command reset traffic-statistic Example # Clear the statistic information of ACL 2000. <3Com> reset acl counter 2000 1.1.13 rule (Basic ACL) Syntax rule [ rule-id ] { permit | deny } [ source { source-addr wildcard | any } | fragment |...

  • Page 796: Rule (Advanced Acl)

    # Define a rule to deny the packets whose source IP addresses are 1.1.1.1. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] acl number 2000 [3Com-acl-basic-2000] rule deny source 1.1.1.1 0 1.1.14 rule (Advanced ACL) Syntax rule [ rule-id ] { permit | deny } rule-string...
  • Page 797 3Com Switch 7750 Series Command Reference Guide – ACL permit: Permits packets that satisfy the condition to pass. rule-string: Rule information, which can be combination of the parameters described in Table 1-8. You need to configure the protocol argument in the rule information before you can configure other arguments.
  • Page 798 3Com Switch 7750 Series Command Reference Guide – ACL Note: sour-wildcard/dest-wildcard is the complement of the wildcard mask of the source/destination subnet mask. For example, you need to input 0.0.255.255 to specify the subnet mask 255.255.0.0. The arguments can be set as 0 to represent the host IP address.
  • Page 799 3Com Switch 7750 Series Command Reference Guide – ACL To define the IP precedence, you can directly input a value ranging from 0 to 7, or input a keyword listed in the following table. Table 1-10 Description of IP precedence value...
  • Page 800 3Com Switch 7750 Series Command Reference Guide – ACL Table 1-12 TCP/UDP-specific rule information Parameter source-port operator port1 [ port2 ] destination-port operator port1 [ port2 ] established Note: Only the A type card supports the “range” operation on the TCP/UDP port.
  • Page 801 3Com Switch 7750 Series Command Reference Guide – ACL Table 1-14 ICMP messages Name echo echo-reply fragmentneed-DFset host-redirect host-tos-redirect host-unreachable information-reply information-request net-redirect net-tos-redirect net-unreachable parameter-problem port-unreachable protocol-unreachable reassembly-timeout source-quench source-route-failed timestamp-reply timestamp-request ttl-exceeded Description Use the rule command to define an ACL rule.

  • Page 802: Rule (Layer 2 Acl)

    202.38.160.0 and with the port number of 80 to pass. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] acl number 3101 [3Com-acl-adv-3101] rule permit tcp source 129.9.0.0 0.0.255.255 destination 202.38.160.0 0.0.0.255 destination-port eq 80 1.1.15 rule (Layer 2 ACL) Syntax...
  • Page 803 Note: ARP packets are allowed to pass by default on the Switch 7750. You cannot use the packet-filter command to filter ARP packets, even though you have used the rule command to define a Layer 2 ACL, in which the argument protocol is defined as ARP.
  • Page 804 3Com Switch 7750 Series Command Reference Guide – ACL To define the CoS value, you can directly input a value ranging from 0 to 7, or input a keyword listed in the following table. Table 1-16 Description of CoS value...

  • Page 805: Rule (User-Defined Acl)

    3Com Switch 7750 Series Command Reference Guide – ACL [3Com-acl-ethernetframe-4000] ffff-ffff-ffff dest 0011-4301-991e ffff-ffff-ffff 1.1.16 rule (user-defined ACL) Syntax rule [ rule-id ] { permit | deny } { rule-string rule-mask offset } &<1-8> [ time-range time-name ] undo rule rule-id...

  • Page 806: Time-Range

    System View: return to User View with Ctrl+Z. [3Com] time-range t1 18:00 to 23:00 sat [3Com] acl number 5001 [3Com-acl-user-5001] rule 25 deny 06 ff 35 time-range t1 1.1.17 time-range Syntax time-range time-name { start-time to end-time days-of-the-week [ from start-time...
  • Page 807 3Com Switch 7750 Series Command Reference Guide – ACL end-time: End time of a special time range, in the form of hh:mm. Optional argument. days-of-the-week: Day of the week when the special time range is effective. Optional argument. Available arguments and argument combinations are as follows:...
  • Page 808 3Com Switch 7750 Series Command Reference Guide – ACL Chapter 1 ACL Commands [3Com] time-range test from 0:0 2000/1/1 1-27...
  • Page 809 3Com Switch 7750 Series Command Reference Guide – QoS Chapter 1 QoS Commands... 1-1 1.1 QoS Commands ... 1-1 1.1.1 display priority trust ... 1-1 1.1.2 display qos cos-local-precedence-map... 1-2 1.1.3 display qos-interface all... 1-2 1.1.4 display qos-interface line-rate ... 1-3 1.1.5 display qos-interface queue-scheduler ...

  • Page 810: Qos Commands

    # Display the queue scheduling mode and the related parameters. <3Com> display priority-trust Priority trust mode: local-precedence The information above shows that the switch put a packet into an output queue on a port according to the local precedence of the packet. Chapter 1 QoS Commands...

  • Page 811: Display Qos Cos-Local-Precedence-Map

    3Com Switch 7750 Series Command Reference Guide – QoS 1.1.2 display qos cos-local-precedence-map Syntax display qos cos-local-precedence-map View Any view Parameter None Description Use the display qos “COS-to-local-precedence” mapping table. Example # Display the “COS-to-local-precedence” mapping table. <3Com> display qos cos-local-precedence-map...

  • Page 812: Display Qos-Interface Line-Rate

    3Com Switch 7750 Series Command Reference Guide – QoS command will display the QoS parameter configuration of all the ports of the switch; if you provide the interface-type interface-number argument, this command will display QoS parameter configuration of the specified port.

  • Page 813: Display Qos-Interface Queue-Scheduler

    If you do not specify the interface-type interface-number argument, you will view the rate limit configuration for the outbound direction of all the ports of a switch; if you specify that argument, you will view the rate limit configuration for the outbound direction of the specified port.
  • Page 814 Example # Display the queue scheduling mode parameter of GigabitEthernet1/0/1. <3Com> display qos-interface gigabitethernet 1/0/1 queue-scheduler GigabitEthernet1/0/1: Queue scheduling mode: weighted round robin weight of queue 1: 10...

  • Page 815: Display Qos-Interface Traffic-Bandwidth

    3Com Switch 7750 Series Command Reference Guide – QoS common queue statistics(in bytes): 1.1.6 display qos-interface traffic-bandwidth Syntax display qos-interface [ interface-type interface-number ] traffic-bandwidth View Any view Parameter interface-type interface-number: Port index. Description Use the display qos-interface traffic-bandwidth command to view the configuration information of the bandwidth guarantee.

  • Page 816: Display Qos-Interface Traffic-Priority

    Description Use the display qos-interface traffic-limit command to view the traffic limit configuration of a port or all the ports of a switch, including the applied ACLs for traffic limit, committed average rate (CAR), and the corresponding actions. Related command: traffic-limit.

  • Page 817: Display Qos-Interface Traffic-Red

    3Com Switch 7750 Series Command Reference Guide – QoS Example # Display the traffic priority configuration. <3Com> display qos-interface traffic-priority Ethernet1/0/1: traffic-priority Outbound: Matches: Acl 2000 rule 0 Priority action: dscp be 1.1.9 display qos-interface traffic-red Syntax display qos-interface [ interface-type interface-number ] traffic-red...

  • Page 818: Display Qos-Interface Traffic-Redirect

    3Com Switch 7750 Series Command Reference Guide – QoS 1.1.10 display qos-interface traffic-redirect Syntax display qos-interface [ interface-type interface-number ] traffic-redirect View Any view Parameter interface-type interface-number: Port index. Description Use the display qos-interface traffic-redirect command to view the configuration of traffic redirect.

  • Page 819: Display Qos-Interface Traffic-Statistic

    3Com Switch 7750 Series Command Reference Guide – QoS Description Use the display qos-interface traffic-remark-vlanid command to display the configuration of the traffic-based flexible QinQ function. The displayed information includes the ACL rules used for traffic identifying and the ID of the external VLAN tag.

  • Page 820: Inboundcar

    If you enable the CAR function for the traffic matching the same rule on multiple ports, the switch provides guaranteed bandwidth to the traffic matching the CAR rule on each port.

  • Page 821: Line-Rate

    Command Reference Guide – QoS For example, if you want to set the CAR bandwidth of 2 M for the traffic matching the rule 0 on the switch, use the traffic-limit command to enable the CAR function on two ports.

  • Page 822: Priority

    By default, the priority of a port is 0. If the switch receives a packet without VLAN tags, the switch will tag the packet with the default VLAN of the port receiving the packet. In this case the switch assigns the port priority of the port receiving the packet to the 802.1p priority of the VLAN tag in the...

  • Page 823: Priority Trust

    Use the priority trust command to specify the priority according to which the switch puts a packet into the output queue on a port. By default, the switch puts a packet into the output queue on a port according to the local precedence of the packet.

  • Page 824: Qos

    You can choose the corresponding packet precedence as the basis for putting a packet into an output queue on a port as required. Example # Specify the switch to put a packet into an output queue according to the DSCP precedence of the packet. <3Com> system-view [3Com] priority-trust dscp 1.1.17 qos...
  • Page 825 3Com Switch 7750 Series Command Reference Guide – QoS Example # Enter QoS view of a non-type-A LPU and query the QoS configuration supported by the LPU. <3Com> system-view [3Com] interface GigabitEthernet1/0/1 [3Com-GigabitEthernet1/0/1] qos [3Com-qosb-GigabitEthernet1/0/1] ? Qosb view commands: display...

  • Page 826: Qos Cos-Local-Precedence-Map

    3Com Switch 7750 Series Command Reference Guide – QoS traffic-bandwidth traffic-limit traffic-priority traffic-red traffic-remark-vlanid traffic-statistic undo 1.1.18 qos cos-local-precedence-map Syntax qos cos-local-precedence-map cos0-map-local-prec cos1-map-local-prec cos2-map-local-prec cos3-map-local-prec cos4-map-local-prec cos5-map-local-prec cos6-map-local-prec cos7-map-local-prec undo qos cos-local-precedence-map View System view Parameter cos0-map-local-prec: Local precedence to which the CoS 0 is to be mapped, in the range of 0 to 7.
  • Page 827 Table 1-2 Default “CoS-to-local-precedence” mapping table CoS value Example # Configure the “CoS-to-local-precedence” mapping table. <3Com> system-view [3Com] qos cos-local-precedence-map 0 1 2 3 4 5 6 7 The following is the configured "CoS-to-local-precedence” mapping table. cos-local-precedence-map 1-18 Chapter 1 QoS Commands...

  • Page 828: Queue-Scheduler

    3Com Switch 7750 Series Command Reference Guide – QoS Table 1-3 “CoS-to-local-precedence” mapping table CoS value 1.1.19 queue-scheduler Syntax queue-scheduler { rr | strict-priority | wrr queue1-weight queue2-weight queue3-weight queue8-weight } undo queue-scheduler View QoS view Parameter rr: Adopts round robin (RR) algorithm.

  • Page 829: Reset Traffic-Statistic

    10, 10, 5, 10, 5, and 10. <3Com> system-view [3Com] interface GigabitEthernet1/0/1 [3Com-GigabitEthernet1/0/1] qos [3Com-qosb-GigabitEthernet1/0/1] queue-scheduler wrr 10 5 10 10 5 10 5 10 1.1.20 reset traffic-statistic Syntax I. For type-A LPUs: reset traffic-statistic { inbound | outbound } acl-rule [ system-index ] II.
  • Page 830 3Com Switch 7750 Series Command Reference Guide – QoS Parameter acl-rule: Applied ACL which can be the combination of various ACL rules. For the ways of type-A LPUs to combine ACLs and the description on related parameters, refer to Table 1-4 and Table 1-6. For the ways of non-type-A LPUs to combine ACLs and the description on related parameters, refer to Table 1-5 and Table 1-6.
  • Page 831 3Com Switch 7750 Series Command Reference Guide – QoS Table 1-6 Description on the parameters in the ACL combination Parameter ip-group { acl-number | acl-name } link-group { acl-number | acl-name } user-group { acl-number | acl-name } rule-id system-index: Specifies an interior index value which is used when an ACL rule is applied to the port.

  • Page 832: Traffic-Bandwidth

    Example # Clear the statistics about traffic matching ACL 2000. <3Com> system-view [3Com] interface Ethernet1/0/1 [3Com-Ethernet1/0/1] qos [3Com-qoss-Ethernet1/0/1] reset traffic-statistic inbound ip-group 2000 1.1.21 traffic-bandwidth Syntax traffic-bandwidth outbound acl-rule [ system-index ] min-guaranteed-bandwidth max-guaranteed-bandwidth weight undo traffic-bandwidth outbound acl-rule...
  • Page 833 3Com Switch 7750 Series Command Reference Guide – QoS Parameter outbound: Guarantees the bandwidth for the outbound packets sent by the port. acl-rule: Applied ACL rules which can be the combination of various ACL rules. For the ways of combining ACLs and the description on related parameters, refer to Table 1-4 and Table 1-6.
  • Page 834 64 k, the maximum available bandwidth is 128 k, and bandwidth weight is 50. <3Com> system-view [3Com] interface Ethernet1/0/1 [3Com-Ethernet1/0/1] qos [3Com-qoss-Ethernet1/0/1] traffic-bandwidth outbound ip-group 2000 64 128 50 ∑ ∑ )*Wi/ 1-25 Chapter 1 QoS Commands...

  • Page 835: Traffic-Limit

    3Com Switch 7750 Series Command Reference Guide – QoS 1.1.22 traffic-limit Syntax I. For type-A LPUs: traffic-limit { inbound | outbound } acl-rule [ system-index ] target-rate undo traffic-limit { inbound | outbound } acl-rule II. For non-type-A LPUs: traffic-limit inbound acl-rule [ system-index ] [ kbps ] target-rate [ exceed action ]...
  • Page 836 3Com Switch 7750 Series Command Reference Guide – QoS If the input index value is not 0 and does not conflict with the interior index used by the system, the system will adopt the index value input by you; If the input index value is not 0 but conflicts with the interior index used by the system, the system will reassign an index value.

  • Page 837: Traffic-Priority

    GigabitEthernet1/0/1 of a non-type-A LPU. The maximum rate is 128 kbps. <3Com> system-view [3Com] interface GigabitEthernet1/0/1 [3Com-GigabitEthernet1/0/1] qos [3Com-qosb-GigabitEthernet1/0/1] traffic-limit inbound ip-group 2000 kbps 128 1.1.23 traffic-priority Syntax I. For type-A LPUs: traffic-priority { inbound | outbound } acl-rule [ system-index ] { { dscp dscp-value |...
  • Page 838 3Com Switch 7750 Series Command Reference Guide – QoS acl-rule: Applied ACL which can be the combination of various ACL rules. For the ways of type-A LPUs to combine ACLs and the description on related parameters, refer to Table 1-4 and Table 1-6. For the ways of non-type-A LPUs to combine ACLs and the description on related parameters, refer to Table 1-5 and Table 1-6.
  • Page 839 3Com Switch 7750 Series Command Reference Guide – QoS Keyword be (default) ip-precedence pre-value: Sets IP precedence. The pre-value argument ranges from 0 to 7. You can also enter the keywords in Table 1-9. Table 1-9 Description on IP precedence values...

  • Page 840: Traffic-Red

    3Com Switch 7750 Series Command Reference Guide – QoS Keyword network-management Note: If you have redirected the packets to CPU, it is not recommended to set the 802.1p priority to 7, and vice versa. local-precedence pre-value: Sets local precedence. The pre-value argument ranges from 0 to 7.
  • Page 841 3Com Switch 7750 Series Command Reference Guide – QoS undo traffic-red outbound acl-rule View QoS view Parameter outbound: Performs RED operation on the sent packets. acl-rule: Applied ACL rules which can be the combination of various ACL rules. For the ways of combining ACLs and the description on related parameters, refer to Table 1-4 and Table 1-6.

  • Page 842: Traffic-Redirect

    128 KB, and the probability argument is 20%. <3Com> system-view [3Com] interface Ethernet1/0/1 [3Com-Ethernet1/0/1] qos [3Com-qoss-Ethernet1/0/1] traffic-red outbound ip-group 2000 64 128 20 1.1.25 traffic-redirect Syntax traffic-redirect inbound acl-rule [ system-index ] { cpu | interface interface-type interface-number }...
  • Page 843 3Com Switch 7750 Series Command Reference Guide – QoS only available when the ACL rule number is specified in the command. After the specified ACL takes effect, there are three scenarios when you input the index value: If you do not input an index value or the index value you input is 0, the system will automatically assign an index whose value is greater than 0;...

  • Page 844: Traffic-Remark-Vlanid

    3Com Switch 7750 Series Command Reference Guide – QoS 1.1.26 traffic-remark-vlanid Syntax traffic-remark-vlanid inbound acl-rule [ system-index ] remark-vlan vlan-id undo traffic-remark-vlanid inbound acl-rule Note: LPUs support applying the combination of IP ACL rules and link ACL rules. However, the field defined by the IP ACL rules and link ACL rules cannot be of more than 32 characters.
  • Page 845 3Com Switch 7750 Series Command Reference Guide – QoS Table 1-12 Description on the parameters in the ACL combination Parameter ip-group acl-number acl-name } link-group { acl-number | acl-name } user-group { acl-number | acl-name } rule-id vlan-id: ID of the external VLAN tag which is tagged to the packet, in the range of 1 to 4,094.

  • Page 846: Traffic-Statistic

    Ethernet1/0/1, thus implementing the traffic-based flexible QinQ function. <3Com> system-view [3Com] vlan 25 [3Com-vlan25] quit [3Com] acl number 2000 [3Com-acl-basic-2000] rule permit source 10.1.1.1 0.0.0.255 [3Com-acl-basic-2000] quit [3Com] interface Ethernet1/0/1 [3Com-Ethernet1/0/1] port access vlan 25 [3Com-Ethernet1/0/1] vlan-vpn enable [3Com-Ethernet1/0/1] qos...
  • Page 847 3Com Switch 7750 Series Command Reference Guide – QoS Note: LPUs support applying the combination of IP ACL rules and link ACL rules. However, the field defined by the IP ACL rules and link ACL rules cannot be of more than 32 characters.
  • Page 848 3Com Switch 7750 Series Command Reference Guide – QoS Note: Only the permit rule can be referenced in this command and applied to hardware. Example # Perform traffic statistics on the packets matching the permit rule in ACL 2000. <3Com> system-view...
  • Page 849 3Com Switch 7750 Series Command Reference Guide – Mirroring Chapter 1 Mirroring Commands ... 1-1 1.1 Mirroring Commands ... 1-1 1.1.1 display mirroring-group ... 1-1 1.1.2 display qos-interface mirrored-to... 1-2 1.1.3 mirrored-to... 1-3 1.1.4 mirroring-group... 1-6 1.1.5 mirroring-group (only for recovery)... 1-7 1.1.6 mirroring-group mirroring-port ...

  • Page 850: Chapter 1 Mirroring Commands

    3Com Switch 7750 Series Command Reference Guide – Mirroring Chapter 1 Mirroring Commands 1.1 Mirroring Commands 1.1.1 display mirroring-group Syntax display mirroring-group { group-id | all | local | remote-destination | remote-source } View Any view Parameter group-id: Group number of a mirroring group, in the range of 1 to 20.

  • Page 851: Display Qos-Interface Mirrored-To

    Any view Parameter interface-type interface-number: Port of the switch. If you enter this argument, the switch will display the parameter settings of the specified port. If not, the switch will display the parameters settings of all ports. Description Use the display qos-interface mirrored-to command to display the parameter settings of traffic mirroring.
  • Page 852 3Com Switch 7750 Series Command Reference Guide – Mirroring Example # Display the parameter settings of traffic mirroring on GigabitEthernet1/0/1. <3Com> display qos-interface GigabitEthernet 1/0/1 mirrored-to GigabitEthernet1/0/1: mirrored-to Inbound: Matches: Acl 2000 rule 0 Mirrored to: mirroring-group 3 1.1.3 mirrored-to...
  • Page 853 3Com Switch 7750 Series Command Reference Guide – Mirroring Table 1-2 Combined application of ACLs on service board other than A type. Combination mode Apply all rules in an IP type ACL separately Apply one rule in an IP type ACL...
  • Page 854 3Com Switch 7750 Series Command Reference Guide – Mirroring Parameter user-group { acl-number | acl-name } rule-id system-index: Specifies an interior index value which is used when an ACL rule is applied to the port. The index value ranges from 0 to 4294,967,295. This keyword is only available when the ACL rule number is specified in the command.

  • Page 855: Mirroring-Group

    3Com Switch 7750 Series Command Reference Guide – Mirroring Related command: display qos-interface mirrored-to, monitor-port Example # Mirror packets that match ACL 2000 on port GigabitEthernet1/0/1 to GigabitEthernet1/0/4 through traffic mirroring. <3Com> system-view [3Com] mirroring-group 3 local [3Com]mirroring-group 3 monitor-port GigabitEthernet 1/0/4...

  • Page 856: Mirroring-Group (Only For Recovery)

    Ethernet1/0/4 as destination port, and only monitor the packets received through ports. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] mirroring-group 2 inbound Ethernet 1/0/1 to Ethernet 1/0/3 mirrored-to Ethernet 1/0/4 Chapter 1 Mirroring Commands This...

  • Page 857: Mirroring-Group Mirroring-Port

    Example # Configure GigabitEthernet1/0/1 as the source port and mirror all packets received via this port. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] mirroring-group 1 mirroring-port Gigabitethernet1/0/1 inbound interface-type interface-number Chapter 1 Mirroring Commands interface-type...

  • Page 858: Mirroring-Group Mirroring-Slot

    # Specify the LPU residing in slot 3 as the mirroring source LPU and mirror all the packets received on the LPU. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] mirroring-group 1 mirroring-slot 3 inbound 1.1.8 mirroring-group monitor-port Syntax mirroring-group group-id monitor-port monitor-port...

  • Page 859: Mirroring-Group Monitor-Slot

    The destination port for remote mirroring must be an Access port. After a port is configured as a reflector port, the switch does not allow you to change the port type and its default VLAN ID.

  • Page 860: Mirroring-Group Reflector-Port

    STP or DLDP on a reflector port. After a port is configured as a reflector port, the switch does not allow you to change the port type and its default VLAN ID, or to add it to another VLAN.

  • Page 861: Mirroring-Group Remote-Probe Vlan

    VLAN for a mirroring group. Example # Configure VLAN 100 as the remote-probe VLAN. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] mirroring-group 1 remote-probe vlan 100 1.1.12 remote-probe vlan Syntax remote-probe vlan enable undo remote-probe vlan enable...
  • Page 862 3Com Switch 7750 Series Command Reference Guide – Mirroring current VLAN is a dynamic VLAN or not. If it is a dynamic VLAN , the command fails to be executed, and the system prompts that “Can not set dynamic VLAN as remote-probe VLAN!”.
  • Page 863 3Com Switch 7750 Series Command Reference Guide – PoE Chapter 1 PoE Configuration Commands ... 1-1 1.1 PoE Configuration Commands ... 1-1 1.1.1 display poe interface ... 1-1 1.1.2 display poe interface power ... 1-3 1.1.3 display poe powersupply... 1-5 1.1.4 display poe pse ...

  • Page 864: Poe Configuration Commands

    Port on the switch. Refer to Command Manual – Basic Port Configuration for details. all: Displays the PoE information of all the PoE ports on the switch. Description Use the display poe interface command to view the PoE status of a specific port. If the all keyword is specified, the command displays the PoE status of all the PoE ports.
  • Page 865 3Com Switch 7750 Series Command Reference Guide – PoE Table 1-1 Description on the fields of the display poe interface command Field Port power status Port power mode Port PD class Port power priority Port max power Port current power...

  • Page 866: Display Poe Interface Power

    3Com Switch 7750 Series Command Reference Guide – PoE Interface Ethernet3/0/12 power status: PD searching Interface Ethernet3/0/13 power status: PD searching Interface Ethernet3/0/14 power status: PD searching Interface Ethernet3/0/15 power status: PD searching Interface Ethernet3/0/16 power status: PD searching Interface Ethernet3/0/17 power status: delivering...
  • Page 867 Description Use the display poe interface power command to view the power information of a specific port of the switch. If the all keyword is specified, the command displays the power information of all PoE ports on the switch. Example # Display the power information of the PoE port Ethernet3/0/1.

  • Page 868: Display Poe Powersupply

    3Com Switch 7750 Series Command Reference Guide – PoE Interface Ethernet3/0/23 current power : 0 mw Interface Ethernet3/0/24 current power : 0 mw Interface Ethernet3/0/25 current power : 0 mw Interface Ethernet3/0/26 current power : 0 mw Interface Ethernet3/0/27 current power : 0 mw...

  • Page 869: Display Poe Pse

    3Com Switch 7750 Series Command Reference Guide – PoE Example # Display the parameters of external PoE PSUs. <3Com> display poe powersupply Power Model Power Manufacturer Power Nominal Value Power Peak Value Power Average Value Power Current Current Power Current Voltage...

  • Page 870: Poe Enable

    Use the display poe pse command to display the parameters of all boards that serve as power sourcing equipment (PSE). Example # Display the parameters of all boards that serve as PSE on the switch. <3Com> display poe pse PSE Information of board 4:...

  • Page 871: Poe Enable Slot

    If you insert a PoE board of another type into the slot for which a rated power output is reserved, the switch still applies the former PoE configuration to the port. Chapter 1 PoE Configuration Commands...

  • Page 872: Poe Legacy Enable Slot

    Use the undo poe legacy slot command to disable PoE-compatibility detection for the remote PDs. By default, PoE-compatibility detection for PDs is disabled on the board. Through the PoE-compatibility detection, the switch can detect the PDs incompatible with IEEE802.3af and supply power to them. Caution:...

  • Page 873: Poe Max-Power

    3Com Switch 7750 Series Command Reference Guide – PoE [3Com] poe enable slot 2 [3Com] poe legacy enable slot 2 1.1.8 poe max-power Syntax poe max-power max-power undo poe max-power View Ethernet port view Parameter max-power: Maximum power distributed to the port, ranging from 1,000 to 15,400 in...

  • Page 874: Poe Mode

    Use the undo poe mode command to restore the PoE mode on the current port to the default mode. By default, the port supplies power through a signal cable. Note that the Switch 7750 series switches do not support the spare mode currently. Example # Set the PoE mode on Ethernet3/0/1 to signal.

  • Page 875: Poe Power Max-Value

    View System view Parameter max-value: Maximum PoE power output on the switch, ranging from 37 to 2,400 in W. Description Use the poe power max-value command to set the maximum power output on the switch. By default, the maximum PoE power output on the switch is 2,400 W.

  • Page 876: Poe Priority

    For example: Port A has the power priority of critical. When the switch is reaching full load and a new PD is now added to the port A, the switch will power down a PD that is connected to a port with the lowest priority and turn to feed this new PD.

  • Page 877: Poe Upgrade

    By default, the PoE priority of a port is low. Note: This command is used together with the poe power-management command, and takes effect when the PoE power output of the switch reaches nearly to its maximum value. Example # Set the PoE priority of Ethernet3/0/1 to critical.
  • Page 878 Example # Update the processing software in the PSE online. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] poe upgrade refresh 0400_001.S19 slot 2 This will update poe Board 2 upgrading poe, please wait... Load finished! Start Upgrading...

  • Page 879: Poe Psu Supervision Display Commands

    3Com Switch 7750 Series Command Reference Guide – PoE Chapter 2 PoE PSU Supervision Configuration 2.1 PoE PSU Supervision Display Commands 2.1.1 display poe-power ac-input state Syntax display poe-power ac-input state View Any view Parameter None Description Use the display poe-power ac-input state command to display the AC input state of the PoE power supply units (PSUs) contained in the external PoE power supply system.

  • Page 880: Display Poe-Power Alarm

    3Com Switch 7750 Series Command Reference Guide – PoE Table 2-1 Description on the fields of the display poe-power ac-input state command Field AC input state of PoE PSU 1 2.1.2 display poe-power alarm Syntax display poe-power alarm View Any view...

  • Page 881: Display Poe-Power Dc-Output State

    3Com Switch 7750 Series Command Reference Guide – PoE Table 2-2 Description on the fields of the display poe-power alarm command Field alarm information about PoE PSU1 2.1.3 display poe-power dc-output state Syntax display poe-power dc-output state View Any view...

  • Page 882: Display Poe-Power Dc-Output Value

    3Com Switch 7750 Series Command Reference Guide – PoE Table 2-3 Description on the fields of the display poe-power dc-output state command Field DC output state of the external PoE PSU 2.1.4 display poe-power dc-output value Syntax display poe-power dc-output value...

  • Page 883: Display Poe-Power Switch State

    # Display the number and current state of the AC power distribution switches. <3Com> display poe-power switch state Switch Number : 0 Note: Currently, the Switch 7750 series do not use any AC power distribution switch, so the returned value is always 0. 2.1.6 display supervision-module information Syntax...
  • Page 884 3Com Switch 7750 Series Command Reference Guide – PoE Description Use the display supervision-module information command to display the basic information about the external PoE PSUs, including the name, the model, the specifications and output power. Example # Display the information about the PoE PSUs.

  • Page 885: Poe Psu Supervision Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – PoE 2.2 PoE PSU Supervision Configuration Commands 2.2.1 poe-power input-thresh lower Syntax poe-power input-thresh lower string View System view Parameter string: Undervoltage alarm threshold (in V) in the format of X.X. For 220 VAC input, it ranges from 176.0V to 264.0V For 110 VAC input, it ranges from 90.0V to 132.0V...

  • Page 886: Poe-Power Output-Thresh Lower

    3Com Switch 7750 Series Command Reference Guide – PoE Description Use the poe-power input-thresh upper command to set the overvoltage alarm threshold of AC input for the external PoE PSUs. For 220 VAC input, the recommended value is 264.0 V; For 110VAC input, the recommended value is 132.0 V.

  • Page 887: Poe-Power Output-Thresh Upper

    3Com Switch 7750 Series Command Reference Guide – PoE 2.2.4 poe-power output-thresh upper Syntax poe-power output-thresh upper string View System view Parameter string: Overvoltage alarm threshold (in volts V) in the format of X.X, in the range of 55.0 to 57.0.
  • Page 888 3Com Switch 7750 Series Command Reference Guide – UDP Helper Chapter 1 UDP-Helper Configuration Commands ... 1-1 1.1 UDP-Helper Configuration Commands ... 1-1 1.1.1 debugging udp-helper ... 1-1 1.1.2 display udp-helper server... 1-1 1.1.3 reset udp-helper packet ... 1-2 1.1.4 udp-helper port ... 1-3 1.1.5 udp-helper server ...

  • Page 889: Chapter 1 Udp-Helper Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – UDP Helper Chapter 1 UDP-Helper Configuration Commands 1.1 UDP-Helper Configuration Commands 1.1.1 debugging udp-helper Syntax debugging udp-helper { event | packet [ receive | send ] } undo debugging udp-helper { event | packet [ receive | send ] }...

  • Page 890: Reset Udp-Helper Packet

    Example # Display the information about the configured destination servers connected to VLAN 1 interface and the number of the packets forwarded to the destination servers. <3Com> display udp-helper server interface Vlan-interface 1 Interface name Vlan-interface1 The information above shows that the server with its IP address being 192.1.1.2 is configured as a destination server and is connected to VLAN 1 interface, and no packets are forwarded to it so far.

  • Page 891: Udp-Helper Port

    3Com Switch 7750 Series Command Reference Guide – UDP Helper View System view Parameter None Description Use the udp-helper enable command to enable the UDP-Helper function. Use the undo udp-helper enable command to disable the UDP-Helper function. By default, UDP-Helper is disabled.

  • Page 892: Udp-Helper Server

    3Com Switch 7750 Series Command Reference Guide – UDP Helper Description Use the udp-helper port command to specify a UDP-Helper destination port. Use the undo udp-helper port command to disable a port from being a UDP-Helper destination port. With UDP-Helper enabled, UDP broadcast packets with their destination port being the six default UDP ports (that is, port 69, 53, 37, 137, 138, and 49) are forwarded to the configured destination servers by default.
  • Page 893 3Com Switch 7750 Series Command Reference Guide – UDP Helper Related command: display udp-helper server. Example # Configure the device with its IP address being 192.1.1.2 as a destination server for the UDP broadcast packets to be forwarded on VLAN 1 interface.
  • Page 894 3Com Switch 7750 Series Command Reference Guide – SNMP & RMON Chapter 1 SNMP Configuration Commands ... 1-1 1.1 SNMP Configuration Commands... 1-1 1.1.1 display snmp-agent ... 1-1 1.1.2 display snmp-agent community... 1-1 1.1.3 display snmp-agent group... 1-2 1.1.4 display snmp-agent mib-view... 1-3 1.1.5 display snmp-agent statistics ...

  • Page 895: Snmp Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON Chapter 1 SNMP Configuration Commands 1.1 SNMP Configuration Commands 1.1.1 display snmp-agent Syntax display snmp-agent { local-engineid | remote-engineid } View Any view Parameter local-engineid: Displays a local engine ID.

  • Page 896: Display Snmp-Agent Group

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON Parameter read: Displays read-only community information. write: Displays read-write community information. Description Use the display snmp-agent community command to view the information about the currently configured community names for SNMPv1 or SNMPv2c.

  • Page 897: Display Snmp-Agent Mib-View

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON Description Use the display snmp-agent group command to view group name, security model, state of various views and storage models. Example # Display SNMP group name and security model.
  • Page 898 3Com Switch 7750 Series Command Reference Guide – SNMP & RMON Viewname: Displays the SNMP MIB according to the view name. view-name: SNMP MIB view to be displayed. It is a character string, ranging from 1 to 32 characters. Description Use the display snmp-agent mib-view command to view the MIB view configuration information of the current Ethernet switch.

  • Page 899: Display Snmp-Agent Statistics

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON Table 1-3 Description on the fields of the display snmp-agent mib-view command Field View name MIB Subtree Subtree mask Storage-type View Type View status: active/inactive Caution: For the above commands, when the SNMP agent is disabled, the system gives the prompt “SNMP agent disabled”.

  • Page 900: Display Snmp-Agent Sys-Info

    # Display the sysContact string. <3Com> display snmp-agent sys-info contact The contact person for this managed node: S. Morse, 3Com Corporation. The above information indicates that the contact for this device is S. Morse, 3Com Corporation. Chapter 1 SNMP Configuration Commands...

  • Page 901: Display Snmp-Agent Usm-User

    Use the display snmp-agent usm-user command to view SNMP user information. If you do not specify a parameter, all the information will be displayed. Example # Display all user information. <3Com> display snmp-agent usm-user engineid 1234567890 User name: userv3aaaa Group name: managev3group Engine ID: 1234567890...

  • Page 902: Enable Snmp Trap Updown

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON Table 1-4 describes the output fields. Table 1-4 Description on the fields of the display snmp-agent usm-user command Field User name Group name Engine ID Storage-type UserStatus 1.1.8 enable snmp trap updown...

  • Page 903: Snmp-Agent

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON [3Com] snmp-agent trap enable [3Com] snmp-agent securityname public [3Com] interface ethernet6/0/1 [3Com-Ethernet6/0/1] enable snmp trap updown 1.1.9 snmp-agent Syntax snmp-agent undo snmp-agent View System view Parameter None Description Use the snmp-agent command to enable SNMP Agent.

  • Page 904: Snmp-Agent Group

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON Parameter read: Indicates that MIB object can only be read. Only the read-only community can query device information. write: Indicates that MIB object can be read and written. The read-write community can configure the device.

  • Page 905: Snmp-Agent Local-Engineid

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON View System view Parameter v1: Specifies SNMPv1. v2c: Specifies SNMPv2c. v3: Specifies SNMPv3. groupname: Group name, ranging from 1 to 32 bytes. authentication: Configures to authenticate the packet without encryption.

  • Page 906: Snmp-Agent Mib-View

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON undo snmp-agent local-engineid View System view Parameter engineid: Specifies the engine ID with a character string, only composed of 10 to 64 hexadecimal numbers. Two hexadecimal characters form an octet.

  • Page 907: Snmp-Agent Packet Max-Size

    Example # Create an SNMP MIB view that consists of all the objects of MIB-II. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] snmp-agent mib-view included mib2 1.3.6.1.2.1 1.1.14 snmp-agent packet max-size Syntax snmp-agent packet max-size byte-count undo snmp-agent packet max-size...

  • Page 908: Snmp-Agent Sys-Info

    If the device fails, the device maintenance person can use contact information to contact the manufacturer. By default, the contact information is "Hangzhou, Huawei-3Com Tech. Co.,Ltd.", the system location is "Beijing China", the SNMP version is SNMP V3. Related command: display snmp-agent sys-info.

  • Page 909: Snmp-Agent Target-Host

    # Set contact information for system maintenance as Dial System Operator # 1234. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] snmp-agent sys-info contact Dial System Operator # 1234 1.1.16 snmp-agent target-host Syntax snmp-agent target-host trap address udp-domain { ip-address } [ udp-port...

  • Page 910: Snmp-Agent Trap Enable

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON Use undo snmp-agent target-host command to cancel the current setting. The snmp-agent target-host command and the snmp-agent trap enable or enable snmp trap updown command must be used at the same time on the device to send Trap packets.

  • Page 911: Snmp-Agent Trap Life

    Configures to send the authentication trap information of the SNMP protocol when authentication fails. coldstart: Configures to send the coldstart trap information when the switch restarts. linkdown: Configures to send SNMP linkDown Trap information when the port is down.

  • Page 912: Snmp-Agent Trap Queue-Size

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON View System view Parameter seconds: Aging time, in seconds, ranging from 1 to 2,592,000. Description Use the snmp-agent trap life command to set aging time for Trap packets. The Trap packets exceeding the aging time are discarded.

  • Page 913: Snmp-Agent Trap Source

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON By default, the length is 100. Example # Configure the queue length to 200. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] snmp-agent trap queue-size 200 1.1.20 snmp-agent trap source...

  • Page 914: Snmp-Agent Usm-User

    # Configure the IP address of the VLAN interface 1 as the source address for transmitting the Trap packets. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com] snmp-agent trap source Vlan-interface 1 1.1.21 snmp-agent usm-user Syntax Versions V1 and V2C...
  • Page 915 HMAC-MD5 algorithm, require authentication and set authentication password as hello. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] snmp-agent group v3 Johngroup [3Com] snmp-agent usm-user v3 John Johngroup authentication-mode md5 hello Chapter 1 SNMP Configuration Commands 1-21...

  • Page 916: Display Rmon Alarm

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON Chapter 2 RMON Configuration Commands 2.1 RMON Configuration Commands 2.1.1 display rmon alarm Syntax display rmon alarm [entry-number ] View Any view Parameter entry-number: Alarm entry index, in the range of 1 to 65535. If you do not specify this argument, the configuration of all alarm entries is displayed.

  • Page 917: Display Rmon Event

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON Field Samples type Variable formula Sampling interval Rising threshold is 100 Falling threshold is 10 When startup enables Latest value 2.1.2 display rmon event Syntax display rmon event [event-entry ]...

  • Page 918: Display Rmon Eventlog

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON Event table 1 owned by abc is VALID. Description: null. Will cause log-trap when triggered, last triggered at 0days 00h:02m:27s. Table 2-2 Description on the fields of the display rmon event command...

  • Page 919: Display Rmon History

    Related command: rmon history. Example # Display the RMON history information about the RMON port Ethernet2/0/1. <3Com> display rmon history ethernet 2/0/1 History control entry 1 owned by abc is VALID Samples interface Sampling interval...

  • Page 920: Display Rmon Prialarm

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON Dropevents packets multicast packets :0 undersize packets :0 fragments collisions Table 2-4 Description on the fields of the display rmon eventlog command Field History control entry 1 VALID Samples interface...
  • Page 921 3Com Switch 7750 Series Command Reference Guide – SNMP & RMON View Any view Parameter prialarm-entry-number: Extended alarm entry Index, in the range of 1 to 65535. If you do not specify this argument, the configuration of all the extended alarm entries is displayed.

  • Page 922: Display Rmon Statistics

    CRC errors, undersize or oversize packets, broadcast packets, multicast packets, received bytes, and received packets. Related command: rmon statistics. Example # Display the RMON statistics information. <3Com> display rmon statistics ethernet 3/0/1 Statistics entry 1 owned by abc is VALID. Interface : Ethernet3/0/1<ifIndex.201326722> Chapter 2 RMON Configuration Commands Description Falling threshold.
  • Page 923 3Com Switch 7750 Series Command Reference Guide – SNMP & RMON etherStatsOctets etherStatsBroadcastPkts etherStatsUndersizePkts etherStatsFragments etherStatsCRCAlignErrors : 0 etherStatsDropEvents (insufficient resources): 0 Packets received according to length (etherStatsPktsXXXtoYYYOctets): 256-511: 0 Table 2-6 Description on the fields of the display rmon statistics command...

  • Page 924: Rmon Alarm

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON 2.1.7 rmon alarm Syntax rmon alarm entry-number alarm-variable sampling-time { delta | absolute } rising threshold threshold-value1 event-entry2 [ owner text ] undo rmon alarm entry-number View System view Parameter entry-number: Alarm entry line number, in the range of 1 to 65535.
  • Page 925 System View: return to User View with Ctrl+Z. [3Com] rmon event 1 log [3Com] rmon event 2 none [3Com]rmon alarm 1 1.3.6.1.2.1.16.1.1.1.4.1 10 absolute rising_threshold 50 1 falling_threshold 5 2 owner user1 # Delete the alarm entry numbered 15 from the alarm table.

  • Page 926: Rmon Event

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON 2.1.8 rmon event Syntax rmon event event-entry [ description string ] { log | trap trap-community | log-trap log-trapcommunity | none } [ owner text ] undo rmon event event-entry...

  • Page 927: Rmon History

    10, the sampling interval being 5 seconds, and the owner being user1. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com]interface Ethernet 1/0/1 [3Com-Ethernet1/0/1]rmon history 1 buckets 10 interval 5 owner user1 # Remove the history entry numbered 15. [3Com-Ethernet1/0/1] undo rmon history 15 Chapter 2 RMON Configuration Commands...

  • Page 928: Rmon Prialarm

    3Com Switch 7750 Series Command Reference Guide – SNMP & RMON 2.1.10 rmon prialarm Syntax rmon prialarm entry-number prialarm-formula prialarm-des sampling-timer { delta | absolute changeratio falling_threshold threshold-value2 event-entry2 entrytype { forever | cycle cycle-period } [ owner text ]...
  • Page 929 3Com Switch 7750 Series Command Reference Guide – SNMP & RMON Use the undo rmon prialarm command to remove a specified extended alarm entry. The maximum number of distances in the table depends on the hardware resources. Note: Before adding an extended alarm entry, you need to use the rmon event command to define the events to be referenced by the entry.

  • Page 930: Rmon Statistics

    [3Com]interface Ethernet 1/0/1 [3Com-Ethernet1/0/1] rmon statistics 1 [3Com-Ethernet1/0/1] quit [3Com] rmon prialarm 2 ((.1.3.6.1.2.1.16.1.1.1.4.1)*100) test 10 changeratio rising_threshold 50 1 falling_threshold 5 2 entrytype forever owner user1 # Remove the extended alarm entry numbered 2 from the extended alarm table.
  • Page 931 3Com Switch 7750 Series Command Reference Guide – SNMP & RMON Example # Add the statistics entry numbered 20 to take statistics of Ethernet1/0/1 port. <3Com>system-view System View: return to User View with Ctrl+Z. [3Com]interface Ethernet 2/0/1 [3Com-Ethernet2/0/1] rmon statistics 20...
  • Page 932 3Com Switch 7750 Series Command Reference Guide – NTP Chapter 1 NTP Configuration Commands ... 1-1 1.1 NTP Configuration Commands... 1-1 1.1.1 display ntp-service sessions ... 1-1 1.1.2 display ntp-service status... 1-2 1.1.3 display ntp-service trace ... 1-3 1.1.4 ntp-service access ... 1-3 1.1.5 ntp-service authentication enable ...

  • Page 933: Chapter 1 Ntp Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – NTP Chapter 1 NTP Configuration Commands 1.1 NTP Configuration Commands 1.1.1 display ntp-service sessions Syntax display ntp-service sessions [ verbose ] View Any view Parameter verbose: Displays the detailed information about all the sessions maintained by the NTP service.

  • Page 934: Display Ntp-Service Status

    3Com Switch 7750 Series Command Reference Guide – NTP 1.1.2 display ntp-service status Syntax display ntp-service status View Any view Parameter None Description Use the display ntp-service status command to display the NTP service status. Example <3Com> display ntp-service status Service status：enabled...

  • Page 935: Display Ntp-Service Trace

    3Com Switch 7750 Series Command Reference Guide – NTP Field Nominal frequency Actual frequency Clock precision Clock offset Root delay Root dispersion Peer dispersion Reference time 1.1.3 display ntp-service trace Syntax display ntp-service trace View Any view Parameter None Description Use the display ntp-service trace command to display the brief information about every NTP server on the way from the local device to the reference clock source.
  • Page 936 NTP request, it will perform an access control right match and will used first matched right.. Example # Configure to permit the remote switch defined in ACL 2000 to perform time synchronization request, query and synchronization to the local device.. <3Com> system-view System View: return to User View with Ctrl+Z.

  • Page 937: Ntp-Service Authentication Enable

    3Com Switch 7750 Series Command Reference Guide – NTP 1.1.5 ntp-service authentication enable Syntax ntp-service authentication enable undo ntp-service authentication enable View System view Parameter None Description Use the ntp-service authentication enable command to enable the NTP-service authentication function. Use the undo ntp-service authentication enable command to disable this function.

  • Page 938: Ntp-Service Broadcast-Client

    Currently the system supports MD5 authentication only. Example # Set MD5 authentication key 10 as hello. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] ntp-service authentication-keyid 10 authentication-mode md5 hello 1.1.7 ntp-service broadcast-client Syntax ntp-service broadcast-client undo ntp-service broadcast-client...

  • Page 939: Ntp-Service Broadcast-Server

    3Com Switch 7750 Series Command Reference Guide – NTP System View: return to User View with Ctrl+Z. [3Com] interface vlan-interface1 [3Com-Vlan-Interface1] ntp-service broadcast-client 1.1.8 ntp-service broadcast-server Syntax ntp-service broadcast-server [ authentication-keyid keyid version number ] undo ntp-service broadcast-server View VLAN interface view Parameter authentication-keyid: Specifies an authentication key.

  • Page 940: Ntp-Service Disable

    3Com Switch 7750 Series Command Reference Guide – NTP 1.1.9 ntp-service disable Syntax ntp-service disable undo ntp-service disable View System view Parameter None Description Use the ntp-service disable command to disable the NTP service function. Use undo ntp-service disable command to enable this function.

  • Page 941: Ntp-Service Max-Dynamic-Sessions

    3Com Switch 7750 Series Command Reference Guide – NTP By default, an interface is enabled to receive NTP messages. Example # Disable Vlan-interface 1 from receiving NTP message. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] interface vlan-interface1 [3Com-Vlan-Interface1] ntp-service in-interface disable 1.1.11 ntp-service max-dynamic-sessions...

  • Page 942: Ntp-Service Multicast-Client

    3Com Switch 7750 Series Command Reference Guide – NTP 1.1.12 ntp-service multicast-client Syntax ntp-service multicast-client [ ip-address ] undo ntp-service multicast-client [ ip-address ] View VLAN interface view Parameter ip-address: Specifies a multicast IP address of Class D. Description Use the ntp-service multicast-client command to configure the NTP multicast client mode.

  • Page 943: Ntp-Service Refclock-Master

    IP address. Use the undo ntp-service multicast-server command to disable NTP multicast server mode, if no IP address is specified, the switch will disable the configuration of the multicast IP address 224.0.1.1. By default, the multicast service is disabled. IP address defaults to 224.0.1.1 and the version number defaults to 3.

  • Page 944: Ntp-Service Reliable Authentication-Keyid

    3Com Switch 7750 Series Command Reference Guide – NTP View System view Parameter ip-address: Specifies the reference clock IP address as 127.127.1.u. Here, u ranges from 0 to 3. stratum: Specifies which stratum the local clock is located at. The value ranges from 1 to 15.

  • Page 945: Ntp-Service Source-Interface

    <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] ntp-service authentication enable [3Com] ntp-service authentication-keyid 37 authentication-mode md5 BetterKey [3Com] ntp-service reliable authentication-keyid 37 1.1.16 ntp-service source-interface Syntax ntp-service source-interface interface-type interface-number...

  • Page 946: Ntp-Service Unicast-Peer

    3Com Switch 7750 Series Command Reference Guide – NTP Use the undo ntp-service source-interface command to cancel the current setting. By default, the source address depends on the output interface. You can use this command to designate an interface of which the IP address will be the source IP address in all the NTP packets sent by the local device so that the remote device sends the response message to this interface only.

  • Page 947: Ntp-Service Unicast-Server

    128.108.22.44. Set the NTP version to 3. The IP address of the NTP packets is taken from that of VLAN-interface 1. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] ntp-service unicast-peer 131.108.22.33 version 3 source-interface Vlan-Interface 1 1.1.18 ntp-service unicast-server Syntax...
  • Page 948 # Designate the server at 128.108.22.44 to synchronize the local device and use NTP version 3. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] ntp-service unicast-server 128.108.22.44 version 3 Chapter 1 NTP Configuration Commands version number When...
  • Page 949 3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Chapter 1 SSH Terminal Service Configuration Commands ... 1-1 1.1 SSH Server Configuration Commands ... 1-1 1.1.1 display rsa local-key-pair public ... 1-1 1.1.2 display rsa peer-public-key ... 1-2 1.1.3 display ssh server ...
  • Page 950 3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service 1.4.6 exit... 1-29 1.4.7 get ... 1-29 1.4.8 help... 1-30 1.4.9 ls... 1-31 1.4.10 mkdir... 1-31 1.4.11 put ... 1-32 1.4.12 pwd... 1-32 1.4.13 quit... 1-33 1.4.14 remove ... 1-33 1.4.15 rename ...

  • Page 951: Ssh Server Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Chapter 1 SSH Terminal Service Configuration 1.1 SSH Server Configuration Commands 1.1.1 display rsa local-key-pair public Syntax display rsa local-key-pair public View Any view Parameter None Description Use the display rsa local-key-pair public command to display the public key of the host key pair (3Com_Host) and the public key of the server key pair (3Com_Server).

  • Page 952: Display Rsa Peer-Public-Key

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service 010001 Host public key for PEM format code: ---- BEGIN SSH2 PUBLIC KEY ---- AAAAB3NzaC1yc2EAAAADAQABAAAAQQDktggASMGZdT2RL84LvqcRPkuU0OjmoID0 1dLaS8uvB7n5EZj+mTfG7gx67huMBvCL8B82Bc8m2/eJotgjGC7L ---- END SSH2 PUBLIC KEY ---- Public key code for pasting into OpenSSH authorized_keys file :...

  • Page 953: Display Ssh Server

    # Display all public keys on the client. <3Com> display rsa peer-public-key brief Address --------------------------- # Display the public key named abc of the client key pair. <3Com> display rsa peer-public-key name abc ===================================== Key name: abc Key address: =====================================...
  • Page 954 3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Description Use the display ssh server command to display the status or session information about the SSH server. Related command: ssh server authentication-retries, ssh server timeout. Example # Display the status information about the SSH server.

  • Page 955: Display Ssh User-Information

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Field Retry SerType Username 1.1.4 display ssh user-information Syntax display ssh user-information [ username ] View Any view Parameter username: SSH user name, a string of 1 to 80 characters.

  • Page 956: Protocol Inbound

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Description Use the peer-public-key end command to return to system view from public key view. Related command: rsa peer-public-key, public-key-code begin. Example # Exit from public key view. <3Com> system-view System View: return to User View with Ctrl+Z.

  • Page 957: Public-Key-Code Begin

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Caution: When SSH protocol is specified, to ensure a successful login, you must configure the AAA authentication using the authentication-mode scheme command. protocol authentication-mode password or authentication-mode none. When you...

  • Page 958: Public-Key-Code End

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Example # Enter public key edit view and input client public keys. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] rsa peer-public-key 3Com003 [3Com-rsa-public-key] public-key-code begin...

  • Page 959: Rsa Local-Key-Pair Create

    Use the rsa local-key-pair create command to generate RSA key pairs, including the host key pair and the server key pair. The name of the host key pair is in the format of switch name plus _Host, for example, 3Com_Host.

  • Page 960: Rsa Local-Key-Pair Destroy

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service For a successful SSH login, you must generate the local RSA key pairs first. You just need to execute the command once, with no further action required even after the system is rebooted.

  • Page 961: Rsa Peer-Public-Key

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Example # Destroy all existing RSA key pairs at the server end. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] rsa local-key-pair destroy % The name for the keys which will be destroyed is 3Com_Host .

  • Page 962: Ssh Authentication-Type Default

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service % Do you really want to remove the public key named 192.168.0.39 ? [Y/N]:y [3Com] 1.1.12 ssh authentication-type default Syntax ssh authentication-type default { password | rsa | password-publickey | all }...

  • Page 963: Ssh Server Authentication-Retries

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service 1.1.13 ssh server authentication-retries Syntax ssh server authentication-retries times undo ssh server authentication-retries View System view Parameter times: Authentication retry times. It is in the range of 1 to 5 and defaults to 3.

  • Page 964: Ssh Server Rekey-Interval

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service View System view Parameter None Description Use the ssh server compatible-ssh1x enable command to make the server compatible with the SSHv1.x version-supporting client. Use the undo ssh server compatible-ssh1x enable command to make the server not compatible with the SSH1v.x version-supporting client.

  • Page 965: Ssh Server Timeout

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Caution: This command is only effective on users whose client version is SSHv1.x. Example # Set the update interval of the server key to 3 hours. <3Com> system-view System View: return to User View with Ctrl+Z.

  • Page 966: Ssh User Assign Rsa-Key

    Example # Set the client public key for the kk user to key1. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] ssh user kk assign rsa-key key1 [3Com] 1.1.18 ssh user authentication-type Syntax ssh user username authentication-type { password | rsa | password-publickey |...
  • Page 967 RSA public key are correct. Note: For the password-publickey authentication type: SSH1.x client users can access the switch as long as they pass one of the two authentications. SSH2.0 client users can access the switch only when they pass both the authentications.

  • Page 968: Ssh Client Configuration Commands

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service 1.2 SSH Client Configuration Commands 1.2.1 display ssh server-info Syntax display ssh server-info View Any view Parameter None Description Use the display ssh server-info command to display the association between the server public keys configured on the client and the servers.

  • Page 969: Public-Key-Code End

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service the public key, which are generated randomly after you use the rsa local-key-pair create command on the server, should be composed of hexadecimal characters. Related command: rsa peer-public-key, public-key-code end.

  • Page 970: Quit

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Example # Exit from public key edit view and save the public keys. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] rsa peer-public-key 3Com003 [3Com-rsa-public-key] public-key-code begin...

  • Page 971: Ssh Client Assign Rsa-Key

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Use the undo rsa peer-public-key key-name command to delete the configured server public key. You can use the rsa peer-public-key command along with the public-key-code begin command to configure on the client the server public keys, which are generated randomly after you use the rsa local-key-pair create command.

  • Page 972: Ssh Client First-Time Enable

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service [3Com] ssh client 192.168.0.1 assign rsa-key abc 1.2.7 ssh client first-time enable Syntax ssh client first-time enable undo ssh client first-time View System view Parameter None Description Use the ssh client first-time enable command to configure the client to run the initial authentication.

  • Page 973: Ssh2

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service 1.2.8 ssh2 Syntax ssh2 { host-ip | host-name } [ port-num ] [ prefer_kex { dh_group1 | dh_exchange_group } ] [ prefer_ctos_cipher { des | aes128 } ] [ prefer_stoc_cipher...

  • Page 974: Sftp Server Enable

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Note: DES (Data Encryption Standard) is the standard algorithm for data encryption. AES (Advanced Encryption Standard) is the advanced encryption standard algorithm. Description Use the ssh2 command to enable the connection between SSH client and server, define key exchange algorithm preference, encryption algorithm preference and HMAC algorithm preference on the server and client.

  • Page 975: Ssh User Service-Type

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service undo sftp server View System view Parameter None Description Use the sftp server enable command to enable the secure FTP (SFTP) server. Use the undo sftp server enable command to disable the SFTP server.

  • Page 976: Sftp Client Configuration Commands

    Related command: display ssh user-information. Example # Specify SFTP service for SSH user kk. <3Com> system-view System View: return to User View with Ctrl+Z. [3Com] ssh user kk service-type sftp 1.4 SFTP Client Configuration Commands 1.4.1 bye Syntax View SFTP Client view...

  • Page 977: Cdup

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Description Use the cd command to change the current path on the remote SFTP server. If you did not specify the remote-path argument, the current path is displayed. Note: You can use the cd..

  • Page 978: Delete

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service 1.4.4 delete Syntax delete remote-file View SFTP Client view Parameter remote-file: Name of a file on the server. Description Use the delete command to delete the specified file from the remote SFTP server.

  • Page 979: Exit

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Example # Display the files in directory flash:/. sftp-client> dir flash:/ -rwxrwxrwx 1 noone -rwxrwxrwx 1 noone -rwxrwxrwx 1 noone -rwxrwxrwx 1 noone drwxrwxrwx 1 noone drwxrwxrwx 1 noone...

  • Page 980: Help

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Parameter remote-file: Name of the source file on the remote SFTP server. local-file: Name assigned to the file to be saved at the local end. Description Use the get command to download and save a file from a remote server.

  • Page 981: Mkdir

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service 1.4.9 ls Syntax ls [ remote-path ] View SFTP Client view Parameter remote-path: Name of the intended directory. Description Use the ls command to display the files in the specified directory on the remote SFTP server..

  • Page 982: Put

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Description Use the mkdir command to create a directory on the remote SFTP server. Example # Create directory hj test on the remote SFTP server. sftp-client>mkdir hj New directory created 1.4.11 put...

  • Page 983: Quit

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Description Use the pwd command to display the current directory on the SFTP server. Example # Display the current directory on the SFTP server. sftp-client> pwd flash:/ 1.4.13 quit...

  • Page 984: Rename

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Description Use the remove command to delete the specified file from the remote SFTP server. This command has the same function as the delete command. Example # Delete file temp.c from the server.

  • Page 985: Sftp

    3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service Parameter remote-path: Name of a directory on the remote SFTP server. Description Use the rmdir command to delete the specified directory from the remote SFTP server. Example # Delete directory hello from the remote SFTP server.
  • Page 986 3Com Switch 7750 Series Command Reference Guide – SSH Terminal Service des: DES_cbc encryption algorithm. aes128: AES_128 encryption algorithm. prefer_ctos_hmac: HMAC algorithm preference from the client to server. It defaults to SHA1_96. prefer_stoc_hmac: HMAC algorithm preference from the server to client. It defaults to SHA1_96.
  • Page 987 3Com Switch 7750 Series Command Reference Guide – File System Management Chapter 1 File System Management Commands ... 1-1 1.1 File System Management Commands ... 1-1 1.1.1 cd... 1-1 1.1.2 copy... 1-2 1.1.3 delete... 1-3 1.1.4 dir ... 1-4 1.1.5 execute... 1-5 1.1.6 file prompt...

  • Page 988: File System Management Commands

    Target directory. device-name: Target device. Description Use the cd command to change the current directory or switch to the directory of a specified storage device. Note: Make sure the storage device is correctly installed if you want to switch to the storage device by using this command.

  • Page 989: Copy

    3Com Switch 7750 Series Command Reference Guide – File System Management Example # Change the current directory to the one named test in the flash. <3Com> pwd flash: <3Com> cd test <3Com> pwd flash:/test # Enter the root directory of the CF card.

  • Page 990: Delete

    Path name and file name of a file to be deleted. Description Use the delete command to delete a specified file on a switch. You can use the * character in this argument as a wildcard. If you execute the delete command with the /unreserved keyword specified, the specified file is completely deleted.

  • Page 991: Dir

    3Com Switch 7750 Series Command Reference Guide – File System Management To delete the files in the recycle bin, use the reset recycle-bin command. Caution: The dir command does not display the information about the files in the recycle bin.

  • Page 992: Execute

    3Com Switch 7750 Series Command Reference Guide – File System Management <3Com> dir test2.bak Directory of flash:/ -rw- 31877 KB total (15961 KB free) # Display the information about all the files (including the files in the recycle bin) in directory flash:/hello/.

  • Page 993: Fixdisk

    By default, a switch prompts for confirmation before performing file-related operations that have potential risks. If you set the prompt mode of the file-related operations to quiet, the switch does not prompt for confirmation before performing file-related operations. In this case, the system is more likely to operate improperly if irretrievable file-related operations are performed.

  • Page 994: Format

    3Com Switch 7750 Series Command Reference Guide – File System Management View User view Parameter device: Device name. Description Use the fixdisk command to restore space on a storage device. For unavailable memory spaces, you can use this command to restore them.

  • Page 995: Mkdir

    3Com Switch 7750 Series Command Reference Guide – File System Management 1.1.9 mkdir Syntax mkdir directory View User view Parameter directory: Name of the directory to be created. Description Use the mkdir command to create a directory in the current directory.

  • Page 996: Move

    3Com Switch 7750 Series Command Reference Guide – File System Management 1.1.11 move Syntax move fileurl-source fileurl-dest View User view Parameter fileurl-source: Path and file name of the source file. fileurl-dest: Path and file name of the target file. Description Use the move command to move a file to a specified directory.

  • Page 997: Pwd

    3Com Switch 7750 Series Command Reference Guide – File System Management <3Com>move flash:/hello/tt.txt flash:/tt.txt Move flash:/hello/tt.txt to flash:/tt.txt?[Y/N]:y %Moved file flash:/hello/tt.txt to flash:/tt.txt. # Display the information about the files in flash:/ and flash:/hello again. <3Com> dir Directory of flash:/...

  • Page 998: Rename

    3Com Switch 7750 Series Command Reference Guide – File System Management <3Com> pwd flash: 1.1.13 rename Syntax rename fileurl-source fileurl-dest View User view Parameter fileurl-source: File name of the file to be renamed. fileurl-dest: Target file name. Description Use the rename command to rename a file.

  • Page 999: Reset Recycle-Bin

    3Com Switch 7750 Series Command Reference Guide – File System Management # Display the information about the files in the current directory again. <3Com>dir Directory of flash:/ -rw- -rw- 16215134 -rw- -rw- drw- drw- -rw- -rw- drw- 31877 KB total (15934 KB free) 1.1.14 reset recycle-bin...

  • Page 1000: Rmdir

    3Com Switch 7750 Series Command Reference Guide – File System Management %Cleared file flash:/test.txt. 1.1.15 rmdir Syntax rmdir directory View User view Parameter directory: Name of a directory. Description Use the rmdir command to delete a directory. As only empty directories can be deleted, you need to clear a directory before deleting Example # Delete the directory named hello.

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