For cisco catalyst 3550, 2950, 2950 lre, 2940, and 2955 series switches and cigesm blade switch (3 pages)
Summary of Contents for Cisco Catalyst 2950
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Catalyst 2950 and Catalyst 2955 Switch Command Reference Cisco IOS Release 12.1(22)EA7 March 2006 Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 526-4100 Text Part Number: OL-10102-01...
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OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. CCSP, CCVP, the Cisco Square Bridge logo, Follow Me Browsing, and StackWise are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, and iQuick Study are service marks of Cisco Systems, Inc.; and Access Registrar, Aironet, BPX, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, Cisco, the Cisco...
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Global Configuration Mode Interface Configuration Mode config-vlan Mode VLAN Configuration Mode Line Configuration Mode Command Summary Catalyst 2950 and 2955 Cisco IOS Commands C H A P T E R aaa accounting dot1x Catalyst 2950 and Catalyst 2955 Switch Command Reference 78-11381-12...
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2-304 show controllers lre log 2-307 show controllers lre profile 2-309 show controllers lre sequence 2-312 show controllers lre status 2-314 show controllers lre version 2-319 show controllers utilization 2-320 Catalyst 2950 and Catalyst 2955 Switch Command Reference viii 78-11381-12...
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2-387 show pagp 2-389 show parser macro 2-391 show policy-map 2-394 show port-security 2-396 show rps 2-398 show running-config vlan 2-400 show setup express 2-402 show spanning-tree 2-403 Catalyst 2950 and Catalyst 2955 Switch Command Reference 78-11381-12...
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A P P E N D I X Boot Loader Commands boot copy delete flash_init format B-10 fsck B-11 help B-12 load_helper B-13 memory B-14 mkdir B-16 more B-17 rename B-18 Catalyst 2950 and Catalyst 2955 Switch Command Reference 78-11381-12...
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C-19 debug switch dhcp C-20 debug sw-vlan C-21 debug sw-vlan ifs C-23 debug sw-vlan notification C-24 debug sw-vlan vtp C-26 debug udld C-28 N D E X Catalyst 2950 and Catalyst 2955 Switch Command Reference xiii 78-11381-12...
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This guide provides the information you need about the commands that have been created or changed for use with the Catalyst 2950 family of switches. For information about the standard Cisco IOS Release 12.1 commands, see the Cisco IOS documentation set available from the Cisco.com home page by selecting Service and Support >...
These documents provide complete information about the switch and are available from this URL: http://www.cisco.com/en/US/products/ps6738/tsd_products_support_series_home.html http://www.cisco.com/en/US/products/hw/switches/ps628/tsd_products_support_series_home.html You can order printed copies of documents with a DOC-xxxxxx= number from the Cisco.com sites and from the telephone numbers listed in the “Obtaining Documentation” section on page xvii.
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You can access the Internet Protocol Journal at this URL: http://www.cisco.com/ipj • Networking products offered by Cisco Systems, as well as customer support services, can be obtained at this URL: http://www.cisco.com/en/US/products/index.html Networking Professionals Connection is an interactive website for networking professionals to share •...
C H A P T E R Using the Command-Line Interface The Catalyst 2950 and 2955 switches are supported by Cisco IOS software. This chapter describes how to use the switch command-line interface (CLI) to configure the software features. For a complete description of the commands that support these features, see Chapter 2, “Catalyst 2950...
CLI Command Modes CLI Command Modes This section describes the CLI command mode structure. Command modes support specific Cisco IOS commands. For example, the interface type_number command works only when entered in global configuration mode. These are the main command modes: •...
The supported commands can vary depending on the version of software in use. To view a comprehensive list of commands, enter a question mark (?) at the prompt. Switch# ? To return to user EXEC mode, enter the disable command. Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
EXEC command. The configurations of VLAN IDs 1 to 1005 are saved in the VLAN database if VTP is in transparent or server mode. The extended-range VLAN configurations are not saved in the VLAN database. Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
To exit line configuration mode and to return to global configuration mode, use the exit command. To exit line configuration mode and to return to privileged EXEC mode, enter the end command, or press Ctrl-Z. Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
Cisco IOS Release 12.1(6)EA2, the equivalent commands in Cisco IOS Release 12.1(6)EA2 or later, and command descriptions. If you are running Cisco IOS Release 12.1(6)EA2 or later, the switch supports the commands in the left column of Table 1-2 only if they are in a saved configuration file.
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Cisco IOS Release 12.1(6)EA2 or later. These commands are supported only in software releases earlier than Cisco IOS Release 12.1(6)EA2. If you are running Cisco IOS Release 12.1(6)EA2 or later, the switch supports the commands listed in Table 1-3 only if they are in a saved configuration file.
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Chapter 1 Using the Command-Line Interface Command Summary Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
The group keyword is optional when you enter it after the broadcast group and group keywords. You can enter more than optional group keyword. radius (Optional) Enable RADIUS authorization. tacacs+ (Optional) Enable TACACS+ accounting. Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
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Specifies one or more AAA methods for use on interfaces running dot1x IEEE 802.1x. dot1x reauthentication Enables or disables periodic re-authentication. dot1x timeout Sets the number of seconds between re-authentication attempts. reauth-period Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
This authentication first tries to contact a RADIUS server. If this action returns an error, the user is not allowed access to the network. Switch(config)# aaa new model Switch(config)# aaa authentication dot1x default group radius You can verify your settings by entering the show running-config privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
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Related Commands Command Description aaa new-model Enables the AAA access control model. For syntax information, select Cisco IOS Security Command Reference for Release 12.1 > Authentication, Authorization, and Accounting > Authentication Commands. show running-config Displays the configuration information running on the switch. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 >...
0.0.0.0. The keyword any as an abbreviation for destination and • destination-wildcard of 0.0.0.0 255.255.255.255. You do not need to enter a destination-wildcard. Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
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Use the show access-lists command to display the contents of all ACLs. For more information about configuring IP ACLs, see the “Configuring Network Security with ACLs” Note chapter in the software configuration guide for this release. Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
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(IP standard) Configures a standard IP ACL. ip access-group Controls access to an interface. show access-lists Displays ACLs configured on the switch. show ip access-lists Displays IP ACLs configured on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
0.0.0.0 255.255.255.255. You do not need to enter a source-wildcard. Defaults The default standard ACL is always terminated by an implicit deny statement for all packets. Command Modes Global configuration Command History Release Modification 12.1(6)EA2 This command was introduced. Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
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(IP extended) Configures an extended IP ACL. ip access-group Controls access to an interface. show access-lists Displays ACLs configured on the switch. show ip access-lists Displays IP ACLs configured on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
Use the archive download-sw privileged EXEC command to download a new image from a TFTP server to a Catalyst 2950 Long-Reach Ethernet (LRE) switch and to overwrite or to keep the existing image. archive download-sw {/force-reload | /imageonly | /leave-old-sw | /no-set-boot | /overwrite | /reload | /safe} source-url This command is available only on the Catalyst 2950 LRE switches.
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Creates a tar file, lists the files in a tar file, or extracts the files from a tar file. archive upload-sw Uploads an existing image on the switch to a server. delete Deletes a file or directory on the flash memory device. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-11 OL-10102-01...
An optional list of files or directories within the source directory can be specified to write to the new tar file. If none are specified, all files and directories at this level are written to the newly created tar file. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-12 OL-10102-01...
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No default is defined. Command Modes Privileged EXEC Command History Release Modification 12.1(6)EA2 This command was introduced. Usage Guidelines Filenames and directory names are case sensitive. Image names are case sensitive. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-13 OL-10102-01...
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Switch# archive tar /xtract tftp:/172.20.10.30/saved.tar flash:/ new-configs Related Commands Command Description archive download-sw Downloads a new image to the switch. archive upload-sw Uploads an existing image on the switch to a server. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-14 OL-10102-01...
Use the archive upload-sw privileged EXEC command to upload an existing Long-Reach Ethernet (LRE) switch image to a server. archive upload-sw [/version version_string] destination-url This command is supported only on Catalyst 2950 LRE switches. Syntax Description /version version_string (Optional) Specify the version string of the image to be uploaded.
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Command Description archive download-sw Downloads a new image to a Catalyst 2950 LRE switch. archive tar Creates a tar file, lists the files in a tar file, or extracts the files from a tar file. Catalyst 2950 and Catalyst 2955 Switch Command Reference...
QoS for VoIP. The QoS labels of incoming packets are trusted only when the phone is detected. cisco-softphone Identify this port as connected to a device running the Cisco SoftPhone, and automatically configure QoS for VoIP. trust Identify this interface as connected to a trusted switch or router. The QoS labels of incoming packets are trusted.
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In releases earlier than Cisco IOS Release 12.2(20)EA2, auto-QoS configures the switch only for VoIP with Cisco IP Phones on switch ports. In Cisco IOS Release 12.2(20)EA2 or later, auto-QoS configures the switch for VoIP with Cisco IP Phones and for VoIP with devices running the Cisco SoftPhone application. These releases support only Cisco IP SoftPhone Version 1.3(3) or later.
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When you enter the auto qos voip cisco-phone interface configuration command on a port at the • edge of the network that is connected to a Cisco IP Phone, the switch enables the trusted boundary feature. The switch uses the Cisco Discovery Protocol (CDP) to detect the presence or absence of a Cisco IP Phone.
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Switch(config-if)# auto qos voip trust This example shows how to enable auto-QoS and to trust the QoS labels received in incoming packets when the device connected to a port is detected as a Cisco IP phone: Switch(config)# interface fastethernet0/1 Switch(config-if)# auto qos voip cisco-phone...
Use the no form of this command to return to the default setting. boot boothlpr filesystem:/file-url no boot boothlpr This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description filesystem: Alias for a flash file system.
This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description size The buffer allocation size in bytes. The range is 4096 to 524288 bytes.
Use the no form of this command to return to the default setting. boot config-file flash:/file-url no boot config-file This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description flash:/file-url The path (directory) and name of the configuration file.
Use the boot enable-break global configuration command to enable interrupting the automatic boot process on a Catalyst 2950 Long-Reach Ethernet (LRE) switch. Use the no form of this command to return to the default setting. boot enable-break no boot enable-break This command is available only on Catalyst 2950 LRE switches.
... no boot helper This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description filesystem: Alias for a flash file system. Use flash: for the system board flash device.
Use the boot helper-config-file global configuration command to specify the name of the configuration file to be used by the Cisco IOS helper image. If this is not set, the file specified by the CONFIG_FILE environment variable is used by all versions of the software that are loaded. This variable is used only for internal development and testing.
Use the boot manual global configuration command to enable starting the Catalyst 2950 Long-Reach Ethernet (LRE) switch manually during the next power on cycle. Use the no form of this command to return to the default setting.
This example shows how to specify the name of the private configuration file as pconfig: Switch(config)# boot private-config-file pconfig Related Commands Command Description show boot Displays the settings of the boot environment variables. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-28 OL-10102-01...
Use the no form of this command to return to the default setting. boot system filesystem:/file-url ... no boot system This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description filesystem: Alias for a flash file system. Use flash: for the system board flash device.
When desirable is enabled, silent operation is the default. non-silent (Optional) Used with the auto or desirable keyword when PAgP traffic is expected from the other device. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-30 OL-10102-01...
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PAgP-capable and seldom, if ever, sends packets. An example of a silent partner is a file server or a packet analyzer that is not generating traffic. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-31...
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Displays the configuration information running on the switch. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference...
Switch(config-if)# channel-protocol pagp This example shows how to set an EtherChannel into LACP mode: Switch(config-if)# channel-protocol lacp You can verify your settings by entering the show running-config privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-33 OL-10102-01...
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Display PAgP information. show running-config Displays the current operating configuration. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-34...
In a policy map, the class named class-default is not supported. The switch does not filter traffic based Note on the policy map defined by the class class-default policy-map configuration command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-35 OL-10102-01...
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Defines the match criteria to classify traffic. policy-map Creates or modifies a policy map that can be attached to multiple interfaces to specify a service policy. show policy-map Displays quality of service (QoS) policy maps. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-36 OL-10102-01...
Only one access control list (ACL) can be configured in a class map. The ACL can have multiple access control entries (ACEs). The switch does not support any deny conditions in an ACL configured in a class map. Note Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-37 OL-10102-01...
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Defines the match criteria to classify traffic. policy-map Creates or modifies a policy map that can be attached to multiple interfaces to specify a service policy. show class-map Displays QoS class maps. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-38 OL-10102-01...
Ethernet link statistics for the specified port. On a Catalyst 2950 LRE switch, if you use the cpe keyword, the switch clears the Ethernet statistics of the LRE chipset and of all these CPE Ethernet ports: Ethernet port on the Cisco 575 LRE CPE or the Cisco 576 LRE 997 CPE •...
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This example shows how to clear the Ethernet link statistics for an LRE port: Switch# clear controllers ethernet-controller longreachethernet0/1 This example clears the Ethernet statistics for all the CPE Ethernet ports on a Cisco 585 LRE CPE: Switch# clear controllers ethernet-controller longreachethernet0/1 cpe You can verify that information was deleted by entering the show controllers ethernet-controller user EXEC command.
This example shows how to reset the local LRE interfaces on the switch: Switch> clear controllers lre local link This example shows how to reset the Cisco 575 LRE, Cisco 576 LRE 997 CPE, and the Cisco 585 LRE CPE devices connected to the switch: Switch>...
Use the clear controllers lre link monitor privileged EXEC command to clear Long-Reach Ethernet (LRE) link monitor data. clear controllers lre link monitor interface-id This command is available only on Catalyst 2950 LRE switches. Syntax Description interface-id ID of the LRE switch port.
Use the clear controllers lre log privileged EXEC command to clear the history of link, configuration, and timer events for a specific Long-Reach Ethernet (LRE) port or for all switch LRE ports. clear controllers lre log [interface-id] This command is available only on Catalyst 2950 LRE switches. Syntax Description interface-id (Optional) ID of the LRE switch port.
This example shows how to clear the hardware logic on a specific VLAN: Switch# clear interface vlan 5 You can verify that the interface-reset counter for an interface is incremented by entering the show interfaces privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-44 OL-10102-01...
Switch# clear lacp counters You can verify that the information was deleted by entering the show lacp privileged EXEC command. Related Commands Command Description show lacp Displays LACP channel-group information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-45 OL-10102-01...
Use the clear lre rate selection privileged EXEC command to reset the current rate selection setting and to restart rate selection for a specific Long-Reach Ethernet (LRE) port or for all switch LRE ports. clear lre rate selection [lock] [interface-id] This command is available only on Catalyst 2950 LRE switches. Syntax Description lock (Optional) Rate selection runs on all ports that have rate selection enabled, including ports that are locked.
VLAN. This command also clears the MAC address notification global counters. clear mac address-table {dynamic [address mac-addr | interface interface-id | vlan vlan-id] | notification} Beginning with Cisco IOS Release 12.1(11)EA1, the clear mac address-table command replaces the Note clear mac-address-table command (with the hyphen).
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Displays the MAC address notification settings for all interfaces or the specified interface. snmp trap mac-notification Enables the Simple Network Management Protocol (SNMP) MAC address notification trap on a specific interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-48 OL-10102-01...
Switch# clear pagp counters You can verify that the information was deleted by entering the show pagp privileged EXEC command. Related Commands Command Description show pagp Displays PAgP channel-group information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-49 OL-10102-01...
This example shows how to remove all secure addresses from the MAC address table: Switch# clear port-security all This example shows how to remove a configured secure address from the MAC address table: Switch# clear port-security configured address 0008.0070.0007 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-50 OL-10102-01...
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Enables port security on an interface. switchport port-security Configures secure MAC addresses. mac-address mac-address switchport port-security maximum Configures a maximum number of secure MAC addresses on a value secure interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-51 OL-10102-01...
This command was introduced. Examples This example shows how to clear spanning-tree counters for all interfaces: Switch# clear spanning-tree counters Related Commands Command Description show spanning-tree Displays spanning-tree state information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-52 OL-10102-01...
Use the clear spanning-tree detected-protocols command in this situation. Examples This example shows how to restart the protocol migration process on an interface: Switch# clear spanning-tree detected-protocols interface fastethernet0/1 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-53 OL-10102-01...
You can verify that the information was deleted by entering the show vmps statistics privileged EXEC command. Related Commands Command Description show vmps statistics Displays the VQP version, reconfirmation interval, retry count, VMPS IP addresses, and the current and primary servers. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-54 OL-10102-01...
You can verify that the information was deleted by entering the show vtp counters privileged EXEC command. Related Commands Command Description show vtp counters Displays general information about the VTP management domain, status, and counters. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-55 OL-10102-01...
Examples This is an example of text from the running configuration of a cluster member: Switch(config)# show running-config <output truncated> cluster commander-address 00e0.9bc0.a500 member 4 name my_cluster <output truncated> Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-56 OL-10102-01...
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Displays the configuration information running on the switch. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference...
Related Commands Command Description show cluster Displays the cluster status and a summary of the cluster to which the switch belongs. show cluster candidates Displays a list of candidate switches. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-58 OL-10102-01...
This example shows how to enable the command switch, name the cluster, and set the command switch member number to 4: Switch(config)# cluster enable Engineering-IDF4 4 You can verify your settings by entering the show cluster privileged EXEC command on the command switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-59 OL-10102-01...
You can verify your settings by entering the show cluster privileged EXEC command. Related Commands Command Description show cluster Displays the cluster status and a summary of the cluster to which the switch belongs. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-60 OL-10102-01...
You can verify your settings by entering the show interfaces vlan vlan-id privileged EXEC command. Related Commands Command Description show interfaces Displays the administrative and operational status of a switching (nonrouting) port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-61 OL-10102-01...
If you do not specify a VLAN ID, the command switch automatically chooses a VLAN and adds the candidate to the cluster. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-62 OL-10102-01...
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Displays the cluster status and a summary of the cluster to which the switch belongs. show cluster candidates Displays a list of candidate switches. show cluster members Displays information about the cluster members. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-63 OL-10102-01...
You can verify that clustering is disabled by entering the show cluster privileged EXEC command. Related Commands Command Description show cluster Displays the cluster status and a summary of the cluster to which the switch belongs. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-64 OL-10102-01...
%ERROR:Standby (my_hsrp) group does not exist This example shows the error message when this command is entered on a member switch: Switch(config)# cluster standby-group my_hsrp %ERROR:This command runs on a cluster command switch Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-65 OL-10102-01...
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Displays the cluster status and a summary of the cluster to which the switch belongs. show standby Displays standby group information. standby ip Enables HSRP on the interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-66 OL-10102-01...
You can verify your settings by entering the show cluster privileged EXEC command. Related Commands Command Description show cluster Displays the cluster status and a summary of the cluster to which the switch belongs. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-67 OL-10102-01...
Use the controller longreachethernet global configuration command to enter the controller configuration mode. controller longreachethernet ctrlr-number This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description ctrlr-number LRE controller number. Controller numbers are device specific. The range is 0 to 2 on a 24-port LRE switch and 0 on an 8-port LRE switch.
{{auto | full | half} [port port-id]} no cpe duplex {{auto | full | half} [port port-id]} This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description auto The port automatically detects whether to run in full- or half- duplex mode.
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Switch# configure terminal Switch(config)# interface longreachethernet0/3 Switch(config-if)# cpe duplex full port 3 This example shows how to restore a port on a Cisco 585 LRE CPE to the default mode of half duplex: Switch# configure terminal Switch(config)# interface longreachethernet0/3 Switch(config-if)# no cpe duplex full port 3 This example shows how the cpe duplex {auto | full | half} port port-id command works with the cpe duplex {auto | full | half} command.
Use the cpe protected interface configuration command to restrict data traffic to individual ports on Cisco 585 LRE customer premises equipment (CPE) ports. Use the no form of this command to allow different ports on the same CPE device to exchange data directly.
(CPE) ports. Use the no form of this command to enable a port. cpe shutdown [port port-id] no cpe shutdown [port port-id] This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description port port-id (Optional) CPE Ethernet port identifier. The range is 1 to 4, depending on the CPE device.
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Switch# configure terminal Switch(config)# interface longreahethernet0/2 Switch(config-if)# no cpe shutdown Switch(config-if)# Related Commands Command Description show interfaces Displays CPE Ethernet ports connection, speed, or duplex status. shutdown Disables a port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-73 OL-10102-01...
(CPE) port. Use the no form of this command to return to the default setting. cpe speed {{auto | 10 | 100} [port port-id]} no cpe speed {{auto | 10 | 100} [port port-id]} This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description auto Port automatically detects whether it should run at 10 or 100 Mbps.
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Command Description local duplex Sets the port speed for LRE ports. show interfaces Displays connection, speed, and duplex settings for CPE Ethernet ports attached to the specified LRE switch port Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-75 OL-10102-01...
CPE toggle cannot be disabled on a Cisco 575 LRE or Cisco 576 LRE 997 CPE link. You can disable CPE toggle on a link from a Cisco 585 LRE CPE to a remote Ethernet device. You can disable CPE toggle on all interfaces or on a specific interface by using the no cpe toggle [port cpe-port-id] interface configuration command.
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Displays the configuration information running on the switch. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference...
Use the cpe type interface configuration command to set the type of customer premises equipment (CPE) port that is connected to a Long-Reach Ethernet (LRE) switch. cpe type [cisco575-lre | cisco576-lre997 | cisco585-lre | unknown] This command is available only on Catalyst 2950 LRE switches. Syntax Description cisco575-lre Model number of the Cisco 575 LRE CPE device.
VLAN interfaces must have been configured with the interface vlan command (the show running-config privileged EXEC command displays the configured VLAN interfaces). VLAN interfaces not displayed by the show running-config command cannot be used in interface-ranges. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-79 OL-10102-01...
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Displays the current operating configuration, including defined macros. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference...
The prompting behavior depends on the setting of the file prompt global configuration command. By default, the switch prompts for confirmation on destructive file operations. For more information about this command, see the Cisco IOS Command Reference for Cisco IOS Release 12.1. Examples...
0.0.0.0. The keyword any as an abbreviation for destination and • destination-wildcard of 0.0.0.0 255.255.255.255. You do not need to enter a destination-wildcard. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-82 OL-10102-01...
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This example shows how to create an extended IP ACL and to configure deny conditions for it: Switch(config)# ip access-list extended Internetfilter Switch(config-ext-nacl)# deny tcp host 190.5.88.10 any Switch(config-ext-nacl)# deny tcp host 192.1.10.10 any Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-83 OL-10102-01...
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Sets conditions for an IP ACL. ip access-group Controls access to an interface. show ip access-lists Displays IP ACLs configured on the switch. show access-lists Displays ACLs configured on a switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-84 OL-10102-01...
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Creates an ACL based on MAC addresses for non-IP traffic. permit (MAC access-list configuration) Permits Layer 2 traffic to be forwarded if conditions are matched. show access-lists Displays ACLs configured on a switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-86 OL-10102-01...
IEEE 802.1x authentication and EtherChannel are configured. If you are using a device running the Cisco Access Control Server (ACS) application for IEEE 802.1x authentication with EAP-Transparent LAN Services (TLS) and with EAP-MD5 and your switch is running Cisco IOS Release 12.1(14)EA1, make sure that the device is running ACS Version 3.2.1 or...
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Enables manual control of the authorization state of the port. show dot1x Displays IEEE 802.1x statistics, administrative status, and operational status for the switch or for the specified interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-88 OL-10102-01...
You can verify your settings by entering the show dot1x [interface interface-id] privileged EXEC command. Related Commands Command Description dot1x auth-fail vlan [vlan id] Enables the optional restricted VLAN feature. show dot1x [interface interface-id] Displays IEEE 802.1x status for the specified port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-89 OL-10102-01...
Internal VLANs that are used for Layer 3 ports cannot be configured as a restricted VLAN. You cannot configure a VLAN to be both a restricted VLAN and a voice VLAN. If you do this, a syslog message appears. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-90 OL-10102-01...
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Configures the number of authentication attempts allowed [max-attempts] before assigning a user to the restricted VLAN. show dot1x [interface interface-id] Displays IEEE 802.1x status for the specified port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-91 OL-10102-01...
If you enter the dot1x control-direction in interface configuration command and the port cannot support this mode due to a configuration conflict, this appears in the show dot1x all command output: Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-92...
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Catalyst 2950 and 2955 Cisco IOS Commands dot1x control-direction ControlDirection = In (Disabled due to port settings) Related Commands Command Description show dot1x all [interface Displays control-direction port setting status for the specified interface-id] interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-93 OL-10102-01...
You can verify your settings by entering the show dot1x [interface interface-id] privileged EXEC command. Related Commands Command Description show dot1x [interface interface-id] Displays IEEE 802.1x status for the specified interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-94 OL-10102-01...
EAPOL packets are not sent by the client. Before Cisco IOS Release 12.1(22)EA2, the switch did not maintain the EAPOL packet history and allowed clients that failed authentication access to the guest VLAN, regardless of whether EAPOL packets had been detected on the interface.
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You can verify your settings by entering the show dot1x [interface interface-id] privileged EXEC command. Related Commands Command Description dot1x Enables the optional guest VLAN supplicant feature. show dot1x [interface interface-id] Displays IEEE 802.1x status for the specified interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-96 OL-10102-01...
You can verify your settings by entering the show dot1x [interface interface-id] privileged EXEC command. Related Commands Command Description show dot1x [interface interface-id] Displays IEEE 802.1x status for the specified interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-97 OL-10102-01...
You can verify your settings by entering the show dot1x [interface interface-id] privileged EXEC command. Related Commands Command Description show dot1x [interface interface-id] Displays IEEE 802.1x status for the specified interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-98 OL-10102-01...
Sets the number of seconds that the switch waits for a response to an EAP-request/identity frame from the client before resending the request. show dot1x [interface Displays IEEE 802.1x status for the specified interface. interface-id] Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-99 OL-10102-01...
Set the IEEE 802.1x host mode on an interface. show dot1x Displays IEEE 802.1x statistics, administrative status, and operational status for the switch or for the specified interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-100 OL-10102-01...
IEEE 802.1x authentication on a dynamic port, an error message appears, and IEEE 802.1x authentication is not enabled. If you try to change the mode of an IEEE 802.1x-enabled port to dynamic, the port mode is not changed. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-101 OL-10102-01...
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You can verify your settings by entering the show dot1x [interface interface-id] privileged EXEC command. Related Commands Command Description show dot1x [interface interface-id] Displays IEEE 802.1x status for the specified interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-102 OL-10102-01...
This example shows how to manually re-authenticate the device connected to an interface: Switch# dot1x re-authenticate interface fastethernet0/1 Related Commands Command Description show dot1x Displays IEEE 802.1x statistics, administrative status, and operational status for the switch or for the specified interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-103 OL-10102-01...
Description dot1x reauthentication Sets the number of seconds between re-authentication attempts. show dot1x Displays IEEE 802.1x statistics, administrative status, and operational status for the switch or for the specified interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-104 OL-10102-01...
You can verify your settings by entering the show dot1x [interface interface-id] privileged EXEC command. Related Commands Command Description dot1x timeout Sets the number of seconds between re-authentication attempts. show dot1x [interface Displays IEEE 802.1x status for the specified interface. interface-id] Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-105 OL-10102-01...
• server—Sets the number of seconds as the value of the Session-Timeout RADIUS attribute (Attribute[27]). The server keyword is not supported on Catalyst 2950 LRE switches. Note server-timeout Number of seconds that the switch waits for the retransmission of packets by seconds the switch to the authentication server.
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Sets the maximum number of times that the switch sends an EAP-request/identity frame before restarting the authentication process. dot1x reauthentication Enables periodic re-authentication of the client. show dot1x [interface Displays IEEE 802.1x status for the specified interface. interface-id] Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-107 OL-10102-01...
For the default duplex mode of the Gigabit Interface Converter (GBIC)-module ports, see the documentation that came with your GBIC module. For small, form-factor pluggable (SFP) Gigabit Ethernet ports on Catalyst 2950 LRE switches, the default is auto. Command Modes...
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Catalyst 2950 and 2955 Cisco IOS Commands duplex On Catalyst 2950 Long-Reach Ethernet (LRE) switches, use the duplex command to configure both the MAC and LRE chipsets. A 10/100/1000 LRE switch port autonegotiates with the device at the other end of the link for the duplex setting and then forces the duplex setting to the negotiated value.
You must enter the shutdown and then the no shutdown commands to manually recover an interface from the error-disabled state. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-110 OL-10102-01...
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Command Description errdisable recovery Configures the recovery mechanism variables. show errdisable detect Displays errdisable detection status. show interfaces trunk Displays interface status or a list of interfaces in error-disabled state. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-111 OL-10102-01...
15 percent of the configured interval. Though visible in the command-line help string, the unicast-flood keyword is not supported. Note Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-112 OL-10102-01...
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You can verify your settings by entering the show errdisable recovery privileged EXEC command. Related Commands Command Description show errdisable recovery Displays errdisable recovery timer information. show interfaces status Displays interface status. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-113 OL-10102-01...
Command Modes Interface configuration Command History Release Modification 12.0(5.2)WC(1) This command was introduced. 12.1(6)EA2 The asymmetric and symmetric keywords were replaced with the receive, send, off, on, and desired keywords. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-114 OL-10102-01...
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Does not send or receive Does not send or receive send off/receive on Sends only Receives only send off/receive off Does not send or receive Does not send or receive Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-115 OL-10102-01...
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This example shows how to configure the local port to not support any level of flow control by the remote port: Switch(config-if)# flowcontrol receive off Switch(config-if)# flowcontrol send off You can verify your settings by entering the show interfaces or show flowcontrol privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-116 OL-10102-01...
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Displays interface input and output flow control settings and status. show flowcontrol Displays flow control settings and status for specified interfaces or all interfaces on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-117 OL-10102-01...
Use the hw-module slot privileged EXEC command to perform firmware upgrades on Long-Reach Ethernet (LRE) systems. hw-module slot module-slot-number upgrade lre [force] [{local ctrlr-unit-number | remote interface-id}] This command is available only on Catalyst 2950 LRE switches. Syntax Description module-slot-number Physical slot that connects the local device (LRE switch) and the remote customer premises equipment (CPE) device for the upgrade.
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You are about to start an LRE upgrade on CPE Lo0/1. Users on LRE links being upgraded will experience a temporary disruption of Ethernet connectivity. Start LRE upgrade ? [yes]: Starting remote upgrade on CPE Lo0/1 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-119 OL-10102-01...
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Displays the LRE binaries present on the system flash memory, the upgrade status on all ports in the switch, or the binaries on local and remote ends on all ports. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-120 OL-10102-01...
Switch(config)# interface vlan 3 Switch(config-if)# ip address 172.20.128.176 255.255.255.0 Switch(config-if)# no shutdown Switch(config-if)# exit You can verify your settings by entering the show interfaces and show interfaces vlan vlan-id privileged EXEC commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-121 OL-10102-01...
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Catalyst 2950 and 2955 Cisco IOS Commands interface Related Commands Command Description show interfaces Displays the administrative and operational status of a switching (nonrouting) port. shutdown Disables a port and shuts down the management VLAN. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-122 OL-10102-01...
Only one port channel in a channel group is allowed. Follow these guidelines when you use the interface port-channel command: If you want to use the Cisco Discovery Protocol (CDP), you must configure it only on the physical • interface and not on the port-channel interface.
EtherChannel ports, all Long-Reach Ethernet (LRE) ports, or all VLANs. These are the valid values for port-range type and interface: vlan vlan-id, where vlan-id is from 1 to4094 • port-channel port-channel-number, where port-channel-number is from 1 to 6 • Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-124 OL-10102-01...
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Displays the configuration information running on the switch. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference...
Ethernet (LRE) interfaces. Use the no form of this command to return to the default setting. interleave {downstream value | upstream value} no interleave {downstream value | upstream value} This command is available only on Catalyst 2950 LRE switches. Syntax Description downstream value Value at the local end of the link.
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Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands interleave Related Commands Command Description show controllers lre status Displays the interleave block size values on the LRE interfaces. interleave Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-127 OL-10102-01...
IP access groups can be separated on Layer 2 and Layer 3 interfaces. For more information about configuring IP ACLs, see the “Configuring Network Security with ACLs” Note chapter in the software configuration guide for this release. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-128 OL-10102-01...
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Defines an IP ACL. permit (access-list configuration) Configures conditions for an IP ACL. show access-lists Displays ACLs configured on the switch. show ip access-lists Displays IP ACLs configured on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-129 OL-10102-01...
Note For more information about configuring IP ACLs, see the “Configuring Network Security with ACLs” chapter in the software configuration guide for this release. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-130 OL-10102-01...
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Configures conditions for an IP ACL. service-policy Applies a policy map to the input of an interface. show access-lists Displays ACLs configured on the switch. show ip access-lists Displays IP ACLs configured on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-131 OL-10102-01...
Enables DHCP snooping on a VLAN. show ip dhcp snooping Displays the DHCP snooping configuration. show ip dhcp snooping binding Displays the DHCP snooping binding information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-133 OL-10102-01...
This example shows how to enable DHCP option-82 data insertion: Switch(config)# ip dhcp snooping information option You can verify your settings by entering the show ip dhcp snooping privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-134 OL-10102-01...
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Catalyst 2950 and 2955 Cisco IOS Commands ip dhcp snooping information option Related Commands Command Description show ip dhcp snooping Displays the DHCP snooping configuration. show ip dhcp snooping binding Displays the DHCP snooping binding information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-135 OL-10102-01...
This example shows how to configure an access switch to not check the option-82 information in untrusted packets from an edge switch and to accept the packets: Switch(config)# ip dhcp snooping information option allow-untrusted Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-136 OL-10102-01...
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You can verify your settings by entering the show ip dhcp snooping privileged EXEC command. Related Commands Command Description show ip dhcp snooping Displays the DHCP snooping configuration. show ip dhcp snooping binding Displays the DHCP snooping binding information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-137 OL-10102-01...
Related Commands Command Description errdisable recovery Configures the recover mechanism. show ip dhcp snooping Displays the DHCP snooping configuration. show ip dhcp snooping binding Displays the DHCP snooping binding information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-138 OL-10102-01...
You can verify your settings by entering the show ip dhcp snooping privileged EXEC command. Related Commands Command Description show ip dhcp snooping Displays the DHCP snooping configuration. show ip dhcp snooping binding Displays the DHCP snooping binding information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-139 OL-10102-01...
You can verify your settings by entering the show ip dhcp snooping privileged EXEC command. Related Commands Command Description show ip dhcp snooping Displays the DHCP snooping configuration. show ip dhcp snooping binding Displays the DHCP snooping binding information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-140 OL-10102-01...
After these entries are aged out and the maximum number of entries is in the forwarding table, the switch drops the next IGMP report received on the interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-142 OL-10102-01...
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Displays the running configuration on the switch interface, including interface-id the maximum number of IGMP groups that an interface can join and the throttling action. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands.
Switch # configure terminal Switch(config)# ip igmp profile 40 Switch(config-igmp-profile)# permit Switch(config-igmp-profile)# range 233.1.1.1 233.255.255.255 You can verify your settings by using the show ip igmp profile privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-144 OL-10102-01...
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Command Description ip igmp filter Applies the IGMP profile to the specified interface. show ip igmp profile Displays the characteristics of all IGMP profiles or the specified IGMP profile number. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-145 OL-10102-01...
Configures a Layer 2 port as a multicast router port. ip igmp snooping vlan static Configures a Layer 2 port as a member of a group. show ip igmp snooping Displays the IGMP snooping configuration. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-146 OL-10102-01...
Switch(config)# no ip igmp snooping source-only-learning Switch(config)# no ip igmp snooping mrouter learn pim v2 You can verify your settings by entering the show running-config | include mrouter learn pim v2 privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-147 OL-10102-01...
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Displays the configuration information running on the switch. mrouter learn pim v2 For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-148 OL-10102-01...
Switch(config)# no ip igmp snooping report-suppression This example shows how to enable report suppression: Switch(config)# ip igmp snooping report-suppression You can verify your settings by entering the show ip igmp snooping privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-149 OL-10102-01...
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Globally enables IGMP snooping. IGMP snooping must be globally enabled in order to be enabled on a VLAN. show ip igmp snooping Displays the IGMP snooping configuration of the switch or the VLAN. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-150 OL-10102-01...
The switch learns about IP multicast groups from the IP multicast data stream by using the source-only learning method. The switch forwards traffic only to the multicast router ports. You can disable source-only learning by using the no ip igmp snooping source-only learning global configuration command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-151 OL-10102-01...
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Displays the configuration information running on the switch. For source-only-learning syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference...
Configures a Layer 2 port as a multicast router port. ip igmp snooping vlan static Configures a Layer 2 port as a member of a group. show ip igmp snooping Displays the IGMP snooping configuration. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-153 OL-10102-01...
Displays the IGMP snooping configuration. ip igmp snooping vlan static Configures a Layer 2 port as a member of a group. show mac address-table multicast Displays the Layer 2 multicast entries for a VLAN. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-154 OL-10102-01...
Configures a Layer 2 port as a multicast router port. ip igmp snooping vlan static Configures a Layer 2 port as a member of a group. show ip igmp snooping Displays the IGMP snooping configuration. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-155 OL-10102-01...
12.0(5.2)WC(1) This command was introduced. Usage Guidelines The CGMP learning method is useful for controlling traffic in Cisco router environments. The configured learning method is saved in NVRAM. Static connections to multicast routers are supported only on switch ports. Examples...
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Configures a Layer 2 port as a member of a group. show ip igmp snooping mrouter Displays the statically and dynamically learned multicast router ports. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-157 OL-10102-01...
Switch(config)# ip igmp snooping vlan 1 static 0100.5e02.0203 interface fastethernet0/1 Configuring port FastEthernet 0/1 on group 0100.5e02.0203 You can verify your settings by entering the show mac address-table multicast privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-158 OL-10102-01...
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Configures IGMP Immediate-Leave processing. immediate-leave ip igmp snooping vlan mrouter Configures a Layer 2 port as a multicast router port. show mac address-table multicast Displays the Layer 2 multicast entries for a VLAN. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-159 OL-10102-01...
This example shows how to configure the switch to run SSH version 2: Switch(config)# ip ssh version 2 You can verify your settings by entering the show ip ssh or show ssh privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-160 OL-10102-01...
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Reference, Release 12.2 > Other Security Features > Secure Shell Commands. show ssh Displays the status of the SSH server. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Security Command Reference, Release 12.2 > Other Security Features > Secure Shell Commands.
For more information about configuring LACP on physical interfaces, see the “Configuring EtherChannels” chapter in the software configuration guide for this release. Examples This example shows set the port priority for LACP: Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-162 OL-10102-01...
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Switch(config)# lacp port-priority 32764 You can verify your settings by entering the show etherchannel privileged EXEC command. Related Commands Command Description lacp system-priority Globally sets the LACP priority. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-163 OL-10102-01...
Etherchannels” chapter in the software configuration guide for this release. Examples This example shows set the system priority for LACP: Switch(config)# lacp system-priority 32764 You can verify your settings by entering the show lacp sys-id privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-164 OL-10102-01...
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Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands lacp system-priority Related Commands Command Description lacp port-priority Sets the LACP priority for a specific port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-165 OL-10102-01...
Use the no form of this command to disable LRE link monitoring on a port. link monitor no link monitor This command is available only on Catalyst 2950 LRE switches. Syntax Description This command has no arguments or keywords.
Use the no form of this command to disable LRE link monitor logging. link monitor logging no link monitor logging This command is available only on Catalyst 2950 LRE switches. Syntax Description This command has no arguments or keywords.
Reed-Solomon errors. Use the no form of this command to return to the default setting. link monitor threshold rserr {downstream value | upstream value} no link monitor threshold rserr {downstream value | upstream value} This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description downstream value Number of the Reed-Solomon errors allowed per second at the remote end of the link.
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Displays the LRE link monitor information. show controllers lre status Displays the LRE link statistics and profile information on a switch LRE port, including link state, link duration, profile name, and data rates. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-169 OL-10102-01...
(SNR) errors. Use the no form of this command to return to the default setting. link monitor threshold snr {downstream value | upstream value} no link monitor threshold snr {downstream value | upstream value} This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description downstream value Value of the SNR, measured in decibels (dB), at the remote end of the link.
Long-Reach Ethernet (LRE) port. Use the no form of this command to return to the default setting. local duplex {full | half} no local duplex This command is available only on Catalyst 2950 LRE switches. Syntax Description full Port is in full-duplex mode.
(LRE) interface. Use the no form of this command to return to the default setting. local speed {10 | 100} no local speed This command is available only on Catalyst 2950 LRE switches. Syntax Description Specify that the LRE port run at 10 Mbps.
Ethernet (LRE) events. Use the no form of this command to disable logging of events. logging lre {event | extended | normal} no logging lre {event | extended | normal} This command is available only on Catalyst 2950 LRE switches. Syntax Description event Log events only.
This command is available only on Catalyst 2950 LRE switches. Syntax Description profile-name Name of the profile. The profile name can be a Cisco-supplied profile or a user-created profile. For more details on Cisco-supplied profiles, see the software configuration guide for this release.
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Catalyst 2950 and 2955 Cisco IOS Commands lre profile Related Commands Command Description profile (sequence configuration) Adds an LRE profile to a rate selection sequence. show controllers lre profile Displays LRE profile information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-175 OL-10102-01...
Use the no form of the command to delete the assigned sequence. lre rate selection sequence sequence-name no lre rate selection sequence sequence-name This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description sequence-name Name of the rate selection sequence being applied.
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Enables rate selection on a specific port. rate selection sequence Assigns a rate selection sequence for a specific port. show controllers lre sequence Displays the list of sequences. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-177 OL-10102-01...
Use the no form of this command to delete a user-configured sequence. lre sequence sequence-name no lre sequence sequence-name This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description sequence-name Name of the sequence being created or modified.
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Switch(config)# Related Commands Command Description lre rate selection sequence Assigns sequences globally. profile (interface configuration) Adds a profile to a sequence. profile (sequence configuration) Adds a profile to a sequence. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-179 OL-10102-01...
For more information, see the “Configuring System Message Logging” chapter in the software configuration guide for this release. In software releases earlier than Cisco IOS Release 12.1(14)EA1, the switch sends information only to the LRE logging process. To display the LRE events, use the show controllers lre log privileged EXEC command.
Long-Reach Ethernet (LRE) customer premises equipment (CPE) device. Use the no form of this command to return t to the default setting. lre upbo {noise-model | offset value} no lre upbo {noise-model | offset value} This command is available only on Catalyst 2950 LRE switches. Syntax Description noise-model Specify the noise model. See Table 2-4 in the “Usage Guidelines”...
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Related Commands Command Description show controllers lre cpe Displays information about the LRE CPE devices connected to an LRE switch. show controllers lre status Displays the LRE line status parameters. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-182 OL-10102-01...
LRE binary} no lre upgrade default family device-family {model model {revision revision | binary LRE binary} | binary LRE binary} This command is available only on Catalyst 2950 LRE switches. Syntax Description device-family Type of device that contains the chipset to be upgraded. Valid values are cisco575-lre, cisco585-lre, cisco576-lre997, and cisco2950-lre.
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Displays the LRE upgrade information. upgrade binary Configures upgrades on either end of an LRE link. upgrade preserve Prevents an upgrade of the local CPE controller and all remote CPE devices connected to it. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-184 OL-10102-01...
This example shows how to apply a MAC extended ACL named macacl2 to an interface: Switch(config)# interface fastethernet0/1 Switch(config-if)# mac access-group macacl2 in You can verify your settings by entering the show mac access-group privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-185 OL-10102-01...
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{deny (MAC access-list configuration) Configures a MAC ACL. permit (MAC access-list configuration)} show access-lists Displays the ACLs configured on the switch. show mac access-group Displays the MAC ACLs configured on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-186 OL-10102-01...
This example shows how to delete the MAC extended ACL named mac1: Switch(config)# no mac access-list extended mac1 You can verify your settings by entering the show access-lists privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-187 OL-10102-01...
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{deny (MAC access-list configuration) | Configures a MAC ACL. permit (MAC access-list configuration)} mac access-group Applies a MAC ACL to an interface. show access-lists Displays the ACLs configured on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-188 OL-10102-01...
The aging time applies to all VLANs. mac address-table aging-time [0 | 10–1000000] no mac address-table aging-time [0 | 10–1000000] Beginning with Cisco IOS Release 12.1(11)EA1, the mac address-table aging-time command replaces Note the mac-address-table aging-time command (with the hyphen).
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Deletes dynamic entries from the MAC address table. show mac address-table Displays the MAC address table. show mac address-table aging-time Displays the MAC address table aging time for all VLANs or the specified VLAN. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-190 OL-10102-01...
[history-size size | interval interval] no mac address-table notification [history-size size | interval interval] Beginning with Cisco IOS Release 12.1(11)EA1, the mac address-table notification command replaces Note the mac-address-table notification command (with the hyphen).
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Sends the SNMP MAC notification traps when the mac-notification keyword is appended. snmp trap mac-notification Enables the SNMP MAC notification trap on a specific interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-192 OL-10102-01...
Use the no form of this command to remove static entries from the MAC address table. mac address-table static mac-addr vlan vlan-id interface interface-id no mac address-table static mac-addr vlan vlan-id [interface interface-id] Beginning with Cisco IOS Release 12.1(11)EA1, the mac address-table static command replaces the Note mac-address-table static command (with the hyphen).
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Sets the length of time that a dynamic entry remains in the MAC address table after the entry is used or updated. show mac address-table Displays the MAC address table. show mac address-table static Displays static MAC address table entries only. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-194 OL-10102-01...
When a packet is received in VLAN 4 with this MAC address as its source or destination, the packet is dropped. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-195...
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You can verify your setting by entering the show mac address-table static privileged EXEC command. Related Commands Command Description show mac address-table static Displays only static MAC address table entries. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-196 OL-10102-01...
There are Cisco-default Smartports macros embedded in the switch software. You can display these macros and the commands they contain by using the show parser macro user EXEC command.
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Applying command...‘duplex auto’ %Error Unknown error. Applying command...‘speed nonegotiate’ This example shows how to display the Cisco-default cisco-desktop macro and how to apply the macro and set the access VLAN ID to 25 on an interface: Switch# show parser macro cisco-desktop...
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Adds a description about the macros that are applied to the switch. description macro name Creates a macro. show parser macro Displays the macro definition for all macros or for the specified macro. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-199 OL-10102-01...
Adds a description about the macros that are applied to the switch. description macro name Creates a macro. show parser macro Displays the macro definition for all macros or for the specified macro. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-200 OL-10102-01...
There are Cisco-default Smartports macros embedded in the switch software. You can display these macros and the commands they contain by using the show parser macro user EXEC command.
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Cisco-default macro with the required values by using the parameter value keywords. The Cisco-default macros use the $ character to help identify required keywords. There is no restriction on using the $ character to define keywords when you create a macro.
Applies a macro on a switch or applies and traces a macro on a switch. macro name Creates a macro. show parser macro Displays the macro definition for all macros or for the specified macro. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-203 OL-10102-01...
You can modify a macro by creating a new macro with the same name as the existing macro. The newly created macro overwrites the existing macro but does not affect the configuration of those interfaces on which the original macro was applied. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-204 OL-10102-01...
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Adds a description about the macros that are applied to the switch. show parser macro Displays the macro definition for all macros or for the specified macro. Related Commands Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-205 OL-10102-01...
{downstream value | upstream value} no margin {downstream value | upstream value} This command is available only on Catalyst 2950 LRE switches. Syntax Description downstream value Value at the remote end of the link. The range is 0 to 10 decibels (dB).
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Assigns a rate selection sequence for the entire switch. rate selection Enables rate selection on a specific port. rate selection sequence Assigns a rate selection sequence for a specific port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-207 OL-10102-01...
Only one match command per class map is supported. For more information about configuring ACLs, see the “Configuring Network Security with ACLs” Note chapter in the software configuration guide for this release. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-208 OL-10102-01...
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Controls access to an interface. mac access-group Applies a named extended MAC ACL to an interface. show class-map Displays quality of service (QoS) class maps. show policy-map Displays QoS policy maps. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-209 OL-10102-01...
(SFP) module connector or an RJ-45 connector. Use the no form of this command to return to the default setting. media-type {auto-select | rj45 | sfp} no media-type {auto-select | rj45 | sfp} This command is available only on Catalyst 2950 LRE switches. Syntax Description auto-select First media-type detected makes the link.
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Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands media-type Related Commands Command Description show interfaces Shows the status or resolution of the link. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-211 OL-10102-01...
If an incoming packet is tagged, the CoS value of the packet is modified with the default CoS of the port at the ingress port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-212...
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Description mls qos map Defines the CoS-to-DSCP map or the DSCP-to-CoS map. mls qos trust Configures the port trust state. show mls qos interface Displays quality of service (QoS) information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-213 OL-10102-01...
For cos, enter the CoS value to which the DSCP values correspond. The range is 0 to 7. Defaults Table 2-5 shows the default CoS-to-DSCP map: Table 2-5 Default CoS-to-DSCP Map CoS Value DSCP Value Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-214 OL-10102-01...
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This example shows how to define the CoS-to-DSCP map. CoS values 0 to 7 are mapped to DSCP values 8, 8, 8, 8, 24, 32, 56, and 56. Switch# configure terminal Switch(config)# mls qos map cos-dscp 8 8 8 8 24 32 56 56 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-215 OL-10102-01...
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Defines the default CoS value of a port or assigns the default CoS to all incoming packets on the port. mls qos trust Configures the port trust state. show mls qos maps Displays quality of service (QoS) mapping information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-216 OL-10102-01...
CoS value and to send packets without modifying the DSCP value (pass-through mode). device cisco-phone (Optional) Classify ingress packets by trusting the value sent from the Cisco IP phone (trusted boundary). dscp (Optional) Classify ingress packets with packet DSCP values (most significant 6 bits of the 8-bit service-type field).
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The trusted boundary feature prevents security problems if users disconnect their PCs from networked Cisco IP phones and connect them into the switch port to take advantage of trusted CoS settings. You must globally enable the Cisco Discovery Protocol (CDP) on both the switch and on the interface connected to the IP phone.
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Defines the default CoS value of a port or assigns the default CoS to all incoming packets on the port. mls qos map Defines the CoS-to-DSCP map or the DSCP-to-CoS map. show mls qos interface Displays QoS information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-219 OL-10102-01...
Specify all, local, or remote to clear all SPAN sessions, all local SPAN sessions, or all RSPAN sessions. Defaults On a source interface, the default is to monitor both received and transmitted traffic. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-220 OL-10102-01...
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IEEE 802.1x authentication is not available on the port, an error message is displayed.) You can enable IEEE 802.1x authentication on a SPAN or RSPAN source port but not on a SPAN destination port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-221...
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If ingress forwarding is enabled, you can use the SPAN destination port to inject traffic from a network security device. For example, if you connect a Cisco Intrusion Detection System (IDS) Sensor Appliance to a destination port, the IDS device can send TCP Reset packets to close down the TCP session of a suspected attacker.
No IP multicast addresses are configured on the switch. The default group IP address count is 0. The default query response time is 5 tenths of or one-half second. The default multicast VLAN for MVR is VLAN 1. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-223 OL-10102-01...
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This example shows how to set the maximum query response time as 1 second (10 tenths): Switch(config)# mvr querytime 10 This example shows how to set VLAN 2 as the multicast VLAN: Switch(config)# mvr vlan 2 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-224 OL-10102-01...
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Displays all MVR groups of which the interface is a member. show mvr members Displays all ports that are members of an MVR multicast group; if the group has no members, its status is shown as Inactive. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-225 OL-10102-01...
Configures a port as a receiver or source port. mvr vlan group Configures a receiver port as a member of an MVR group. show mvr Displays MVR global parameters or port parameters. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-226 OL-10102-01...
This port is a normal switch port and is able to send and receive multicast data with normal switch behavior. Examples This example shows how to configure a port as an MVR receiver port: Switch(config)# interface fastethernet0/1 Switch(config-if)# mvr type receiver Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-227 OL-10102-01...
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Enables the Immediate-Leave feature on an interface. mvr vlan group Configures a receiver port as a member of an MVR group. show mvr Displays MVR global parameters or port parameters. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-228 OL-10102-01...
This example shows how to remove an entry on port 3 in VLAN 10: Switch(config)# interface fastethernet0/3 Switch(config-if)# no mvr 10 group 255.1.1.2 You can verify your settings by entering the show mvr privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-229 OL-10102-01...
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Enables MVR. mvr immediate Enables the Immediate-Leave feature on an interface. mvr type Configures a port as a receiver or source port. show mvr Displays MVR global parameters or port parameters. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-230 OL-10102-01...
If the link partner to the switch is a physical learner that has the channel-group interface configuration command set to on, set the load-distribution method based on the source-MAC address by using the port-channel load-balance src-mac global configuration command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-231 OL-10102-01...
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Displays the configuration information running on the switch. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference...
0.0.0.0. The keyword any as an abbreviation for source and source-wildcard • of 0.0.0.0 255.255.255.255. You do not need to enter a source-wildcard. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-234 OL-10102-01...
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There are no specific conditions that permit packets in a named or numbered IP ACL. The default ACL is always terminated by an implicit deny statement for all packets. Command Modes Access-list configuration Command History Release Modification 12.1(6)EA2 This command was introduced. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-235 OL-10102-01...
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Controls access to an interface. ip access-list Defines an IP ACL. show access-lists Displays ACLs configured on a switch. show ip access-lists Displays IP ACLs configured on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-236 OL-10102-01...
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Prevents Layer 2 traffic from being forwarded if conditions are configuration) matched. mac access-list extended Creates an ACL based on MAC addresses. show access-lists Displays ACLs configured on a switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-238 OL-10102-01...
Use the no form of this command to return to the default setting. persistence delay no persistence delay This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description delay The amount of time delay. The range is 1 to 20 seconds.
Policers cannot be configured on egress Fast Ethernet and Gigabit-capable Ethernet ports. To return to policy-map configuration mode, use the exit command. To return to privileged EXEC mode, use the end command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-240 OL-10102-01...
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Command Description policy-map Creates or modifies a policy map that can be attached to multiple interfaces, and enters policy-map configuration mode. show policy-map Displays quality of service (QoS) policy maps. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-241 OL-10102-01...
You can configure class policies in a policy map only if the classes have match criteria defined for them. Use the class-map and match commands to configure the match criteria for a class. Only one match command per class map is supported. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-242 OL-10102-01...
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Switch(config-pmap-c)# police 1000000 65536 exceed-action drop Switch(config-pmap-c)# exit Switch(config-pmap)# This example shows how to delete policymap2: Switch(config)# no policy-map policymap2 You can verify your settings by entering the show policy-map privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-243 OL-10102-01...
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Creates a class map to be used for matching packets to the class whose name you specify. police Defines a policer for classified traffic. Classifies IP traffic by setting a DSCP value in the packet. show policy-map Displays quality of service (QoS) policy maps. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-244 OL-10102-01...
You can verify your settings by entering the show etherchannel privileged EXEC command. Related Commands Command Description channel-group Assigns an Ethernet interface to an EtherChannel group. interface port-channel Access or creates the port channel. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-245 OL-10102-01...
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Displays the configuration information running on the switch. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference...
This command is available only on Catalyst 2950 LRE switches. Syntax Description profile-name Name of the profile. The profile name can be a Cisco-supplied profile or a user-created profile. For more information, see the switch software configuration guide for this release.
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Defines a new sequence. rate selection Enables rate selection on a specific port. rate selection sequence Assigns a rate selection sequence for a specific port. show controllers lre profile Displays LRE profile information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-248 OL-10102-01...
This command is available only on Catalyst 2950 LRE switches. Syntax Description profile-name Name of the profile. The profile name can be a Cisco-supplied profile or a user-created profile. For more information, see the switch software configuration guide for this release.
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Assigns the rate selection sequence for the entire switch. lre sequence Defines a new sequence. rate selection Enables rate selection on a specific port. rate selection sequence Assigns a sequence for a specific port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-250 OL-10102-01...
Use the rate selection interface configuration command to enable rate selection on a port. Use the no form of this command to disable rate selection on the port. rate selection no rate selection This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description This command has no arguments or keywords. Defaults Rate selection is enabled on all interfaces.
Use the no form of this command to unlock a profile in a port. rate selection profile lock no rate selection profile lock This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description This command has no arguments or keywords.
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Assigns a sequence on a port. lre rate selection sequence Assigns a sequence for the entire switch. show controllers lre status Displays information about the profiles and sequences when the sequence sequence parameter is specified. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-253 OL-10102-01...
Use the no form of this command to remove a specific rate selection sequence on a port. rate selection sequence sequence-name no rate selection sequence sequence-name This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description sequence-name The name of the sequence being applied to the port. For names of system-supplied sequences, see the switch software configuration guide for this release.
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Catalyst 2950 and 2955 Cisco IOS Commands rate selection sequence Related Commands Command Description rate selection Enables rate selection on ports already configured for rate selection. show controllers lre Displays the list of sequences. sequence Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-255 OL-10102-01...
This command does not work if the vty lines of the command switch have access-class configurations. You are not prompted for a password because the member switches inherited the password of the command switch when they joined the cluster. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-256 OL-10102-01...
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3 until you enter the exit command or close the session. Switch# rcommand 3 Switch-3# show version Cisco Internet Operating System Software ... Switch-3# exit Switch# Related Commands Command Description show cluster members Displays information about the cluster members. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-257 OL-10102-01...
This example shows how to remove the RSPAN feature from a VLAN: Switch(config)# vlan 901 Switch(config-vlan)# no remote-span You can verify your settings by entering the show vlan user EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-258 OL-10102-01...
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Enables SPAN and RSPAN monitoring on a port and configures a port as a source or destination port. vlan (global Enter VLAN configuration mode to configure or modify VLANs 1 to 4094. configuration) Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-259 OL-10102-01...
Command Description show rmon statistics Displays RMON statistics. For more information on this command, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS System Management Commands > RMON Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference...
This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches. Syntax Description This command has no arguments or keywords. Defaults The password-recovery mechanism is enabled.
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This example shows how to disable password recovery on a switch so that a user can only reset a password by agreeing to return to the default configuration: Switch(config)# no service-password recovery Switch(config)# exit Related Commands Command Description show version Displays version information for the hardware and firmware. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-264 0L-10102-01...
Command Description policy-map Creates or modifies a policy map that can be attached to multiple interfaces to specify a service policy. show policy-map Displays quality of service (QoS) policy maps. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-265 0L-10102-01...
Note For more information about configuring access control lists (ACLs), see the “Configuring Network Security with ACLs” chapter in the software configuration guide for this release. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-266 0L-10102-01...
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Defines a policer for classified traffic. policy-map Creates or modifies a policy map that can be attached to multiple interfaces to specify a service policy. show policy-map Displays quality of service (QoS) policy maps. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-267 0L-10102-01...
Use the no form of this command to disable Express Setup mode. setup express no setup express This command is available only on Catalyst 2950 switches. Syntax Description This command has no arguments or keywords. Defaults Express Setup is enabled.
Express Setup mode is enabled on the switch. Related Commands Command Description show setup express Displays if Express Setup mode is active on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-269 0L-10102-01...
10.245.155.128 any permit ip host 10.221.111.64 any permit ip host 10.216.25.128 any permit ip host 10.186.122.64 any permit ip host 10.169.110.128 any permit ip host 10.146.106.192 any Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-270 0L-10102-01...
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Configures an IP ACL on the switch. mac access-list extended Creates an ACL based on MAC addresses. show ip access-lists Displays the IP ACLs configured on a switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-271 0L-10102-01...
In releases earlier than Cisco IOS Release 12.1(20)EA2, the show auto qos [interface [interface-id]] command output shows the initial generated auto-QoS configuration. In Cisco IOS Release 12.1(20)EA2 or later, the show auto qos command output shows only the auto-QoS command entered on each interface. The show auto qos interface interface-id command output shows the auto-QoS command entered on a specific interface.
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Catalyst 2950 and 2955 Cisco IOS Commands show auto qos Examples This is an example of output from the show auto qos command after the auto qos voip cisco-phone and the auto qos voip cisco-softphone interface configuration commands are entered: Switch> show auto qos...
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Switch> show auto qos interface fastethernet0/1 AutoQoS is disabled Related Commands Command Description auto qos voip Automatically configures QoS for VoIP within a QoS domain. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-274 0L-10102-01...
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Related Commands Command Description boot private-config-file Specifies the filename that the software uses to read and write a nonvolatile copy of the private configuration. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-276 0L-10102-01...
Class Map match-any class-default (id 0) Match any Class Map match-all class1 (id 5) Match access-group Class Map match-all classtest (id 4) Description: This is a test. Match access-group name testingacl Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-277 0L-10102-01...
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Related Commands Command Description class-map Creates a class map to be used for matching packets to the class whose name you specify. match Defines the match criteria to classify traffic. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-278 0L-10102-01...
Time since last status change: 0 days, 0 hours, 2 minutes Redundancy: Enabled Standby command switch: Member 1 Standby Group: Switch1_standby Standby Group Number: Heartbeat interval: Heartbeat hold-time: Extended discovery hop count: Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-279 0L-10102-01...
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This is an example of output when this command is entered on a member switch that has lost connectivity with the command switch: Switch# show cluster Member switch for cluster "commander" Member number: <UNKNOWN> Management IP address: 192.192.192.192 Command switch mac address: 0000.0c07.ac14 Heartbeat interval: Heartbeat hold-time: Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-280 0L-10102-01...
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Displays a list of candidate switches. show cluster members Displays information about the cluster members. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-281 0L-10102-01...
|---Upstream---| MAC Address Name Device Type PortIf FEC Hops SN PortIf 0030.85f5.8e80 3550-12T WS-C3550-12T Gi0/4 Fa0/1 0005.313c.5880 Switch2 WS-C3550-12T Gi0/1 Gi0/5 0005.dcc8.01c0 2950-145 WS-C2950T-24 Fa0/1 Gi0/2 0002.b922.7180 C2820 WS-C2820-24 Fa0/3 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-282 0L-10102-01...
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Related Commands Command Description show cluster Displays the cluster status and a summary of the cluster to which the switch belongs. show cluster members Displays information about the cluster members. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-283 0L-10102-01...
State 0404.0400.0001 Switch (Cmdr) 0003.fd62.9240 b10-2940TT Fa0/1 Gi0/20 This is an example of output from the show cluster members 3 command for cluster member 3: Switch# show cluster members 3 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-284 0L-10102-01...
Device 'Palpatine' with member number 5 Device type: cisco WS-C2924M-XL MAC address: 00b0.6404.f8c0 Upstream MAC address: 0002.4b29.2e00 (Cluster member 0) Local port: Gi2/1 FEC number: Upstream port: Gi0/7 FEC Number: Hops from command device: 1 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-285 0L-10102-01...
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Related Commands Command Description show cluster Displays the cluster status and a summary of the cluster to which the switch belongs. show cluster candidates Displays a list of candidate switches. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-286 0L-10102-01...
Usage Guidelines Use this command without keywords to display traffic statistics, particularly the RMON statistics for the interface. If this command is entered on a Catalyst 2950 LRE switch, the command output also shows the statistics for the LRE switch interfaces.
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The number of frames that are successfully sent on an interface after more than one collision occurs. Late collisions After a frame is sent, the number of times that a collision is detected on an interface later than 512 bit times. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-288 0L-10102-01...
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The number of frames received that are smaller than 64 bytes (including the FCS bits and excluding the frame header) and that have either an FCS error or an alignment error. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-289...
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0 Invalid frames, too large 0 Aborted Tx frames 0 Discarded frames Transmit and Receive 2 Minimum size frames 0 65 to 127 byte frames 0 128 to 255 byte frames Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-290 0L-10102-01...
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The total number of frames that are the larger than the maximum allowed frame size. FCS errors The total number of frames received on an interface that have a valid length (in bytes) but do not have the correct FCS values. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-291 0L-10102-01...
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This value excludes the frame header bits. Frames The total number of frames received on an interface, including multicast frames, broadcast frames, and incorrectly formed frames. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-293 0L-10102-01...
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The total number of frames successfully received on an interface that are directed to unicast addresses. Multicast Frames The total number of frames successfully received on an interface that are directed to multicast addresses. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-294 0L-10102-01...
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Deletes the Ethernet link send and receive statistics on a Fast Ethernet or an ethernet-controller LRE switch port on an LRE switch. show interfaces Displays the administrative and operational status of all interfaces or a specified interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-295 0L-10102-01...
A non-certified status means that the CPE device did not meet the minimum requirements. If a CPE • device shows a status of non-certified or if the family is not a Cisco 585 LRE CPE, Cisco 576 LRE 997 CPE, or a Cisco 575 LRE CPE, use the show controllers lre cpe mfg privileged EXEC command to verify the CPE manufacturing fields.
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Use the show controllers lre cpe protected privileged EXEC command without specifying an LRE interface to display the protected port setting for all CPE ports. The Cisco 575 LRE CPE or Cisco 576 LRE 997 CPE devices display a protected field output of NA.
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Related Commands Command Description cpe protected Restricts data traffic to individual ports on Cisco 585 LRE CPE ports. show controllers lre version Displays the version number of the hardware, software, and patch software components of the switch LRE interface and the CPE LRE interface.
Long-Reach Ethernet (LRE) link on a specific LRE switch port. show controllers lre interface-id actual {dsrserrs | link | rxpower | snr | txpower | usrserrs} [ | {begin | exclude | include} expression] This command is available only on Catalyst 2950 LRE switches. Syntax Description interface-id ID of the switch LRE port.
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Switch# show controllers lre longreachethernet0/2 actual txpower -89.7 Switch# This is an example of output from the show controllers lre interface-id actual usrserrs command on an LRE port: Switch# show controllers lre longreachethernet0/2 actual usrserrs Switch# Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-300 0L-10102-01...
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Switch# show controllers lre longreachethernet0/1 actual link DOWN Switch# Related Commands Command Description show controllers lre admin Displays the administrative settings of the LRE link on a specific switch LRE port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-301 0L-10102-01...
Long-Reach Ethernet (LRE) link for a specific switch LRE port. show controllers lre interface-id admin {dsrate | usrate}[ |{begin | exclude | include} expression] This command is available only on Catalyst 2950 LRE switches. Syntax Description interface-id ID of the switch LRE port.
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Displays the actual values of the LRE link on a specific switch LRE port. lre profile Assigns a profile to all switch LRE ports. profile (interface configuration) Assigns a profile to a specific switch LRE port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-303 0L-10102-01...
(LRE) link monitor information. show controllers lre monitor {errors | parameters | statistics} {local [interface-id] | remote [interface-id]} [ | {begin | exclude | include} expression] This command is available only on Catalyst 2950 LRE switches. Syntax Description errors Display the LRE Reed-Solomon (RS) errors and Ethernet errors parameters Display the LRE operating parameter data collected by the link monitor.
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Enables link monitor event logging per port. link monitor threshold rserr Sets a Reed-Solomon error threshold for the LRE link monitor. link monitor threshold snr Sets an signal-to-noise margin for the LRE link monitor. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-306 0L-10102-01...
Use this command with keywords to display information about the LRE event log level. show controllers lre log [level] [interface-id] [ | {begin | exclude | include} expression] This command is available only on Catalyst 2950 LRE switches. Syntax Description level (Optional) Display information about the LRE event log level.
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Specifies the logging level on the LRE port. show controllers lre profile Displays the log level for a specific switch LRE port or for all LRE ports on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-308 0L-10102-01...
LRE link can affect the actual LRE link performance. Contact Cisco Systems for information about limitations and optimization of LRE link performance. The net data rates are slightly less than the gross data rates displayed by the show controllers lre profile names command output.
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LRE-6 Global Profile Lo0/8 LRE-6 LRE-6 Global Profile Lo0/9 LRE-6 LRE-6 Global Profile Lo0/10 LRE-6 LRE-6 Global Profile Lo0/11 LRE-6 LRE-6 Global Profile Lo0/12 LRE-6 LRE-6 Global Profile <output truncated> Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-310 0L-10102-01...
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LRE-6-4 System-Configured 6.250 4.688 LRE-6-3 System-Configured 6.250 3.125 LRE-4 System-Configured 4.688 4.688 Related Commands Command Description lre profile Assigns an LRE profile to all the LRE ports on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-311 0L-10102-01...
[ | {begin | exclude | include} expression] This command is available only on Catalyst 2950 LRE switches. Syntax Description | begin (Optional) Display begins with the line that matches the expression.
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9.375 6.250 LRE-9-4 9.375 4.688 <output truncated> Related Commands Command Description lre rate selection sequence Assigns a rate selection sequence to the entire switch. lre sequence Defines a user-defined sequence. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-313 0L-10102-01...
{cpe | interleave | link | profile | psd | sequence [detail]} [interface-id] [ | {begin | exclude | include} expression] This command is available only on Catalyst 2950 LRE switches. Syntax Description Display information about the customer premises equipment (CPE) 10/100 Ethernet ports.
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(dB) Rx-Bsz Tx-Bsz ------ ---- ---- ----------- -------- ----------- ------------- ----- Lo0/2 4829 - 57.7 0x04 This is an example of output from the show controllers lre status profile command: Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-315 0L-10102-01...
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0 - 5.85 66.5 Lo0/24 DOWN 0 - 5.85 53.6 This is an example of output from the show controllers lre status sequence command: Switch# show controllers lre status sequence Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-316 0L-10102-01...
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------ --------- Lo0/3 : CPE-TYPE:CISCO585-LRE Port Status Speed Duplex Protected ---- ------------ ----- ------ --------- notconnected auto false notconnected auto true notconnected auto false notconnected auto false connected half false Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-317 0L-10102-01...
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Displays the administrative settings of the LRE link on a specific switch LRE port. show controllers lre profile Displays information about the LRE profiles available on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-318 0L-10102-01...
(hardware, firmware, and patch software) that make up the Long-Reach Ethernet (LRE) switch interface. show controllers lre version [interface-id] [ | {begin | exclude | include} expression] This command is available only on Catalyst 2950 LRE switches. Syntax Description interface-id (Optional) ID of the switch LRE port.
Switch Fabric Percentage Utilization : 0 This is an example of output from the show controllers utilization command on a specific port: Switch> show controllers fastethernet0/1 utilization Receive Bandwidth Percentage Utilization Transmit Bandwidth Percentage Utilization Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-320 0L-10102-01...
Related Commands Command Description show controllers Displays the interface internal registers or displays the statistics read ethernet-controller from Long-Reach Ethernet (LRE) and customer premises equipment (CPE) ports. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-321 0L-10102-01...
These are examples of output from the show dot1x and the show dot1x all privileged EXEC commands: Switch# show dot1x Sysauthcontrol = Enabled Supplicant Allowed In Guest Vlan = Disabled Dot1x Protocol Version Dot1x Oper Controlled Directions = Both Dot1x Admin Controlled Directions = Both Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-322 0L-10102-01...
AuthFail-Max-Attempts = 3 This is an example of output from the show dot1x interface fastethernet0/3 privileged EXEC command: Switch# show dot1x interface fastethernet0/3 Supplicant MAC 00d0.b71b.35de AuthSM State = AUTHENTICATED (AUTH-FAIL-VLAN) Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-323 0L-10102-01...
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Number of valid EAPOL frames of any type that have been received. RxVersion Received packets in the IEEE 802.1x Version 1 format. LastRxSrcMac Source MAC address carried in the most recently received EAPOL frame. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-324 0L-10102-01...
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Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands show dot1x Related Commands Command Description dot1x Resets the configurable IEEE 802.1x parameters to their default values. control-direction Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-325 0L-10102-01...
This is an example of output from the show env power command: Switch> show env power Internal POWER supply is FAULTY This is an example of output from the show env rps command: Switch> sho env rps RPS is supplying power Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-326 0L-10102-01...
Disabled dhcp-rate-limit Disabled unicast-flood Disabled loopback Disabled Timer interval:300 seconds Interfaces that will be enabled at the next timeout: Interface Errdisable reason Time left(sec) --------- ----------------- -------------- Gi0/1 link-flap Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-327 0L-10102-01...
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Though visible in the output, the unicast-flood field is not supported. Note Related Commands Command Description errdisable recovery Configures the recover mechanism variables. show interfaces trunk Displays interface status or a list of interfaces in error-disabled state. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-328 0L-10102-01...
I - Interface timer is running. Local information: Hello Partner PAgP Learning Group Port Flags State Timers Interval Count Priority Method Ifindex Fa0/3 U1/S1 Age of the port in the current state: 10d:23h:13m:21s Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-330 0L-10102-01...
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Catalyst 2950 and 2955 Cisco IOS Commands show etherchannel Related Commands Command Description channel-group Assigns an Ethernet interface to an EtherChannel group. interface port-channel Accesses or creates the port channel. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-331 0L-10102-01...
This is an example of output from the show file descriptors command: Switch# show file descriptors File Descriptors: Position Open Path 187392 0001 tftp://temp/hampton/c2950g.a 184320 030A flash:c2950-i-m.a Table 2-17 describes the fields in the show file descriptors command output. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-332 0L-10102-01...
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The file system is of unknown type. Table 2-21 File System Flags Field Description The file system is read-only. The file system is write-only The file system is read/write. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-334 0L-10102-01...
This is an example of output from the show flowcontrol command: Switch> show flowcontrol Port Send FlowControl Receive FlowControl RxPause TxPause admin oper admin oper --------- -------- -------- -------- -------- ------- ------- Gi0/1 Unsupp. Unsupp. Gi0/2 desired Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-335 0L-10102-01...
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Receive FlowControl RxPause TxPause admin oper admin oper --------- -------- -------- -------- -------- ------- ------- Gi0/2 desired Related Commands Command Description flowcontrol Sets the receive flow-control state for an interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-336 0L-10102-01...
(Optional) Display excludes lines that match the expression. | include (Optional) Display includes lines that match the specified expression. expression Expression in the output to use as a reference point. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-337 0L-10102-01...
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Vlans allowed on trunk Fa0/4 1-4094 Fa0/6 1-4094 Port Vlans allowed and active in management domain Fa0/4 1-2,51-52 Fa0/6 1-2,51-52 Port Vlans in spanning tree forwarding state and not pruned Fa0/4 Fa0/6 1-2,51-52 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-342 0L-10102-01...
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Operational Duplex: full Operational Auto-MDIX: N/A This is an example of output from the show interfaces command for an LRE port: Switch# show interfaces longreachethernet0/5 LongReachEthernet0/5 is up, line protocol is up Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-343 0L-10102-01...
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1000BaseSX-10/100/1000BaseTX Switch# This is an example of output from the show interfaces media command: Switch# show interfaces media Port Media-configured Active Attached Gi0/1 auto-select rj45 1000BaseSX-10/100/1000BaseTX Gi0/2 prefer-sfp 1000BaseSX-10/100/1000BaseTX Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-344 0L-10102-01...
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Isolates Layer 2 unicast, multicast, and broadcast traffic from other protected ports on the same switch. switchport trunk pruning Configures the VLAN pruning-eligible list for ports in trunking mode. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-345 0L-10102-01...
After a frame is sent, displays the number of times that a collision is detected on an interface after 512 bit times. Excess-col Display the number of frames that could not be sent on an interface because more than 16 collisions occurs. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-347 0L-10102-01...
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Displays the number of frames received on a trunk interface. WrongEncap Displays the number of frames that are received on an interface and have the incorrect encapsulation type. Related Commands Command Description show interfaces Displays interface characteristics. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-348 0L-10102-01...
Examples This is example output from the show inventory command: Switch> show inventory NAME: "sw-2-9-calg", DESCR: "Cisco Catalyst c2950 switch with 24 10/100 BaseTX ports and 2 GBIC (Gigabit Interface Converter) slots" PID: WS-C2950G-24-EI , VID: A0 , SN: FHK0603Y088...
10.216.25.128 any permit ip host 10.228.215.0 any permit ip host 10.221.111.64 any permit ip host 10.123.222.192 any permit ip host 10.169.110.128 any permit ip host 10.186.122.64 any Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-350 0L-10102-01...
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Configures an extended IP ACL on the switch. access-list (IP standard) Configures a standard IP ACL on the switch. ip access-list Configures an IP ACL on the switch. show access-lists Displays ACLs configured on a switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-351 0L-10102-01...
42.0.0.33 dynamic FastEthernet0/8 00:00:00:00:00:02 41.0.0.53 dynamic FastEthernet0/8 This example shows how to display the DHCP snooping binding entries for a specific IP address: Switch> show ip dhcp snooping binding 41.0.0.51 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-353 0L-10102-01...
Binding type VLAN VLAN number of the client interface Interface Interface that connects to the DHCP client host Related Commands Command Description show ip dhcp snooping Displays the DHCP snooping configuration. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-354 0L-10102-01...
The querier can be a Layer 3 switch. The command output also shows the VLAN and interface on which the querier was detected. If the querier is a multicast router, the output shows the Port field as Router. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-356 0L-10102-01...
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Vlan 1: -------- IGMP snooping :Enabled Immediate leave :Disabled Multicast router learning mode :pim-dvmrp Source only learning age timer :10 CGMP interoperability mode :IGMP_ONLY Last member query interval : 100 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-357 0L-10102-01...
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Configures IGMP Immediate-Leave processing. immediate-leave ip igmp snooping vlan mrouter Configures a Layer 2 port as a multicast router port. show mac address-table multicast Displays the Layer 2 multicast entries for a VLAN. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-358 0L-10102-01...
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Displays IGMP snooping multicast router ports for the switch or for the specified multicast VLAN. show ip igmp snooping Displays IGMP snooping multicast information for the switch or for the specified parameter. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-360 0L-10102-01...
This is an example of output from the show lacp counters command: Switch> show lacp counters LACPDUs Marker Marker Response LACPDUs Port Sent Recv Sent Recv Sent Recv Pkts Err --------------------------------------------------------------------- Channel group:1 Fa0/5 Fa0/6 Fa0/7 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-361 0L-10102-01...
Port State 32768 0x35 This is an example of output from the show lacp sys-id command: Switch> show lacp sys-id 32765,0002.4b29.3a00 Related Commands Command Description clear lacp Clears LACP channel-group information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-362 0L-10102-01...
Use the show lre upgrade binaries privileged EXEC command to display the upgrade information for the Long-Reach Ethernet (LRE) switch. show lre upgrade {binaries | status | version} [ | {begin | exclude | include} expression] This command is available only on Catalyst 2950 LRE switches. Syntax Description binaries Display the LRE binaries present on the system flash memory.
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Flash file name: CISCO2950-LRE_vdsloctl_02.50.00.bin This example shows the status of an upgrade after it starts, but before the data transfer begins: Switch# show lre upgrade status Lo0/1: lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-364 0L-10102-01...
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Related Commands Command Description show lre upgrade Displays the upgrade status on all ports in the switch or the versions of binaries on local and remote ends on all ports. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-366 0L-10102-01...
Interface FastEthernet0/4: Inbound access-list is not set Interface FastEthernet0/47: Inbound access-list is not set Interface FastEthernet0/48: Inbound access-list is not set Interface GigabitEthernet0/1: Inbound access-list is not set Interface GigabitEthernet0/2: Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-367 0L-10102-01...
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Inbound access-list is 101This is an example of output from the show mac access-group interface gigabitethernet 0/2 command: Switch# show mac access-group interface gigabitethernet0/2 Interface GigabitEthernet0/2: Inbound access-list is 101 Related Commands Command Description mac access-group Applies a MAC ACL to an interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-368 0L-10102-01...
[aging-time | count | dynamic | static] [address hw-addr] [interface interface-id] [vlan vlan-id] [ | {begin | exclude | include} expression] Note Beginning with Cisco IOS Release 12.1(11)EA1, the show mac address-table command replaces the show mac-address-table command (with the hyphen). Syntax Description aging-time (Optional) Display aging time for dynamic addresses for all VLANs.
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Total MAC Addresses In Use:42 Remaining MAC addresses: 8150 This is an example of output from the show mac address-table aging-time command: Switch> show mac address-table aging-time Vlan Aging Time Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-370 0L-10102-01...
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Description clear mac address-table Deletes from the MAC address table a specific dynamic address, all dynamic dynamic addresses on a particular interface, or all dynamic addresses on a particular VLAN. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-371 0L-10102-01...
The show mac address-table multicast command only shows non-IP multicast addresses. Use the show Note ip igmp snooping multicast user EXEC command to display IP multicast addresses. Beginning with Cisco IOS Release 12.1(11)EA1, the show mac address-table multicast command Note replaces the show mac-address-table multicast command (with the hyphen).
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This is an example of output from the show mac address-table multicast vlan 1 igmp-snooping count command: Switch# show mac address-table multicast vlan 1 igmp-snooping count Number of igmp-snooping programmed entries : 1 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-373 0L-10102-01...
[interface interface-id] [ | {begin | exclude | include} expression] Beginning with Cisco IOS Release 12.1(11)EA1, the show mac address-table notification command Note replaces the show mac-address-table notification command (with the hyphen). Syntax Description interface interface-id (Optional) Specify an interface.
You can configure up to four ACPs (QoS and security) on a switch. Note Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-375 0L-10102-01...
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Applies a named extended MAC ACL to an interface. policy-map Creates or modifies a policy map that can be attached to multiple interfaces, and enters policy-map configuration mode. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-376 0L-10102-01...
Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear. Examples This is an example of output from the show mls qos interface command when the Cisco IP phone is a trusted device: Switch> show mls qos interface fastethernet0/1...
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Defines the class of service (CoS)-to-Differentiated Services Code Point (DSCP) map and DSCP-to-CoS map. mls qos trust Configures the port trust state. Ingress traffic can be trusted and classification is performed by examining the CoS or DSCP value. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-378 0L-10102-01...
This is an example of output from the show mls qos maps dscp-cos command: Switch> show mls qos maps dscp-cos Dscp-cos map: dscp: 8 10 16 18 24 26 32 34 40 46 48 56 ----------------------------------------------- cos: Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-379 0L-10102-01...
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: Local Session Source Ports Both: : Fa0/6 Related Commands Command Description monitor session Enables SPAN and RSPAN monitoring on a port and configures a port as a source or destination port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-382 0L-10102-01...
Displays the configured MVR interfaces, status of the specified interface, or all multicast groups to which the interface belongs. show mvr members Displays all ports that are members of an MVR multicast group. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-383 0L-10102-01...
Active means the port is part of a VLAN. • Up/Down means that the port is forwarding/nonforwarding. • Inactive means that the port is not part of any VLAN. • Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-384 0L-10102-01...
Configures an MVR port as a receiver or a source port. show mvr Displays the global MVR configuration on the switch. show mvr members Displays all receiver ports that are members of an MVR multicast group. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-385 0L-10102-01...
Displays the global MVR configuration on the switch. show mvr interface Displays the configured MVR interfaces, status of the specified interface, or all multicast groups to which the interface belongs. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-387 0L-10102-01...
This is an example of output from the show pagp 1 counters command: Switch> show pagp 1 counters Information Flush Port Sent Recv Sent Recv -------------------------------------- Channel group: 1 Fa0/1 Fa0/2 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-388 0L-10102-01...
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0002.4b29.4600 Fa0/2 24s SC 10001 Related Commands Command Description clear pagp Clears PAgP channel-group information. pagp learn-method Sets the source-address learning method of incoming packets received from an EtherChannel port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-389 0L-10102-01...
Output appear. Examples This is a partial output example from the show parser macro command. The output for the Cisco-default macros varies depending on the switch platform and the software image running on the switch: Switch# show parser macro...
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#enable port security, linkup, and linkdown traps snmp-server enable traps port-security snmp-server enable traps linkup snmp-server enable traps linkdown #set snmp-server host snmp-server host ADDRESS #set SNMP trap notifications precedence snmp-server ip precedence VALUE -------------------------------------------------------------- Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-391 0L-10102-01...
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Displays the current operating configuration, including defined macros. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference, Release 12.1> File Management Commands > Configuration File Management Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-392 0L-10102-01...
Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-393 0L-10102-01...
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20 police 10000000 8192 exceed-action drop Related Commands Command Description policy-map Creates or modifies a policy map that can be attached to multiple interfaces to specify a service policy. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-394 0L-10102-01...
Examples This is an example of output from the show port-security command: Switch# show port-security Secure Port MaxSecureAddr CurrentAddr SecurityViolation Security Action (Count) (Count) (Count) ---------------------------------------------------------------------------- Fa0/1 Shutdown Fa0/2 Restrict Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-395 0L-10102-01...
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Total Addresses:3 Related Commands Command Description switchport port-security Enables port security on a port, restricts the use of the port to a user-defined group of stations, and configures secure MAC addresses. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-396 0L-10102-01...
Catalyst 2950 and 2955 Cisco IOS Commands show rps show rps Use the show rps privileged EXEC command to display the status of the Cisco Redundant Power System (RPS). show rps [ | {begin | exclude | include} expression] Syntax Description | begin (Optional) Display begins with the line that matches the specified expression.
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The RPS +12V or -48V voltages exceed the specified thresholds. • The RPS has a fan failure. • The RPS detects excessive temperature. The RPS has a faulty connection to the switch. • Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-398 0L-10102-01...
Examples This is an example of output from the show running-config vlan command: Switch# show running-config vlan 900-2005 Building configuration... Current configuration: vlan 107 vlan 120 vlan 925 vlan 1000 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-399 0L-10102-01...
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Displays the running configuration on the switch. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. vlan (global Enters config-vlan mode for creating and editing VLANs. When VLAN...
Use the show setup express privileged EXEC command to show if Express Setup mode is active on the switch. show setup express This command is available only on Catalyst 2950 switches. Syntax Description This command has no arguments or keywords.
| portfast | supported. Valid interfaces include physical ports, VLANs, and port priority | rootcost | state] channels. The VLAN range is 1 to 4094. The port-channel range is 1 to 6. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-402 0L-10102-01...
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If the vlan-id variable is omitted, the command applies to the spanning-tree instance for all VLANs. Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-403 0L-10102-01...
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2, forward delay 15, max age 20, max hops 20 Interface Role Sts Cost Prio.Nbr Type ---------------- ---- --- --------- -------- -------------------------------- Fa0/1 Desg FWD 200000 128.1 Fa0/2 Root FWD 200000 128.2 P2p Bound(PVST) Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-405 0L-10102-01...
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Accelerates the choice of a new root port when a link or switch fails or when the spanning tree reconfigures itself. spanning-tree vlan Configures spanning tree on a per-VLAN basis. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-406 0L-10102-01...
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The duration field could be n/a when a storm is still present or when a new storm of a different type Note occurs before the current storm ends. Related Commands Command Description storm-control Enables broadcast, multicast, or unicast storm control on a port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-409 0L-10102-01...
This is an example of output from the show system mtu command: Switch# show system mtu System MTU size is 1500 bytes Related Commands Command Description system mtu Sets the MTU size for the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-410 0L-10102-01...
Time out interval: 5 Entry 1 Expiration time: 146 Device ID: 1 Current neighbor state: Bidirectional Device name: 0050e2826000 Port ID: Gi0/2 Neighbor echo 1 device: SAD03160954 Neighbor echo 1 port: Gi0/1 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-411 0L-10102-01...
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1. CDP = Cisco Discovery Protocol This is an example of output from the show udld interface configuration command when the aggressive mode is configured: Switch# show udld gigabitethernet0/1 Interface Gi0/1 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-412 0L-10102-01...
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Command Description udld Enables UDLD on all ports on the switch. udld port Enables UDLD on a specific port. udld reset Resets any interface that was shut down by UDLD. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-413 0L-10102-01...
ROM:Bootstrap program is C2950 boot loader Switch uptime is 1 hour, 54 minutes System returned to ROM by power-on System image file is "flash:c2950-i6q4l2-mz.121-0.0.9.EA1.bin" cisco WS-C2950G-12-EI (RC32300) processor with 20830K bytes of memory. Last reset from system-reset Running Enhanced Image 12 FastEthernet/IEEE 802.3 interface(s) 2 Gigabit Ethernet/IEEE 802.3 interface(s)
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Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands show version Base ethernet MAC Address:00:05:74:28:09:C0 Configuration register is 0xF <output truncated> Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-415 0L-10102-01...
The remote-span keyword was added. Usage Guidelines Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-416 0L-10102-01...
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Bridge number for the VLAN, if applicable. Spanning Tree Protocol type used on the VLAN. BrdgMode Bridging mode for this VLAN—possible values are source-route bridging (SRB) and source-route transparent (SRT); the default is SRB. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-417 0L-10102-01...
Enables config-vlan mode where you can configure VLANs 1 to 4094. configuration) vlan (VLAN Configures VLAN characteristics in the VLAN database. Only available for configuration) normal-range VLANs (VLAN IDs 1 to 1005). Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-418 0L-10102-01...
This is an example of output from the show vmps command: Switch> show vmps VQP Client Status: -------------------- VMPS VQP Version: Reconfirm Interval: 60 min Server Retry Count: 3 VMPS domain server: Reconfirmation status --------------------- VMPS Action: other Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-419 0L-10102-01...
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If the retry limit has not yet been reached, the client repeats the request with the same server or with the next alternate server, depending on whether the per-server retry count has been reached. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-420 0L-10102-01...
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Sends VQP queries to reconfirm all dynamic VLAN assignments with the (global configuration) VMPS. vmps retry Configures the per-server retry count for the VQP client. vmps server Configures the primary VMPS and up to three secondary servers. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-421 0L-10102-01...
Number of config digest errors Number of V1 summary errors VTP pruning statistics: Trunk Join Transmitted Join Received Summary advts received from non-pruning-capable device ---------------- ---------------- ---------------- --------------------------- Fa0/1 Fa0/2 Fa0/3 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-422 0L-10102-01...
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VTP password in the two switches is different or that the switches have different configurations. These errors means that the switch is filtering incoming advertisements, which causes the VTP database to become unsynchronized across the network. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-423 0L-10102-01...
1 but can be set to version 2. Configuration Revision Current configuration revision number on this switch. Maximum VLANs Supported Maximum number of VLANs supported locally. Locally Number of Existing VLANs Number of existing VLANs. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-424 0L-10102-01...
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A 16-byte checksum of the VTP configuration. Configuration Last Modified Displays the date and time of the last configuration modification. Displays the IP address of the switch that caused the configuration change to the database. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-425 0L-10102-01...
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You can save configuration resulting from this command in the switch configuration file. vtp (privileged EXEC) Configures the VTP password, pruning, and version. vtp (VLAN configuration) Configures the VTP domain name, password, pruning, and mode. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-426 0L-10102-01...
Displays the mapping of the CoS to the priority queues. wrr-queue bandwidth Assigns WRR weights to the four CoS priority queues. wrr-queue cos-map Assigns CoS values to the CoS priority queues. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-427 0L-10102-01...
Displays the WRR bandwidth allocation for the four CoS priority queues. wrr-queue bandwidth Assigns weighted round-robin (WRR) weights to the four CoS priority queues. wrr-queue cos-map Assigns CoS values to the CoS priority queues. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-428 0L-10102-01...
This example shows how to disable a port and how to re-enable it: Switch(config)# interface fastethernet0/1 Switch(config-if)# shutdown Switch(config-if)# no shutdown You can verify your settings by entering the show interfaces privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-429 0L-10102-01...
Shuts down local traffic on the VLAN when in config-VLAN mode (accessed (config-vlan mode) by the vlan vlan-id global configuration command). vlan (global Enables config-vlan mode. configuration) vlan database Enters VLAN configuration mode. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-430 0L-10102-01...
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To enable more than one type of trap, you must enter a separate snmp-server enable traps command for each trap type. Examples This example shows how to send EnvMon traps to the NMS: Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-432 0L-10102-01...
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Displays the running configuration on the switch. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. snmp-server host Specifies the host that receives SNMP traps.
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If version 3 is selected and no authentication keyword is entered, the default is the noauth (noAuthNoPriv) security level. In releases earlier than Cisco IOS Release 12.1(6)EA2, ifIf the community-string is not defined by using Note the snmp-server community global configuration command before using this command, the default form of the snmp-server community command is automatically inserted into the configuration.
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The community string is defined as comaccess. Switch(config)# snmp-server enable traps Switch(config)# snmp-server host myhost.cisco comaccess snmp This example shows how to enable the switch to send all traps to the host myhost.cisco using the community string public: Switch(config)# snmp-server enable traps Switch(config)# snmp-server host myhost.cisco public...
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Displays the running configuration on the switch. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. snmp-server enable traps Enables SNMP notification for various trap types.
Clears the MAC address notification global counters. mac address-table notification Enables the MAC notification feature on a switch. show mac address-table notification Displays MAC notification parameters. snmp-server enable traps Enables SNMP notification for various trap types. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-438 0L-10102-01...
Switch(config)# spanning-tree backbonefast You can verify your setting by entering the show spanning-tree summary privileged EXEC command. Related Commands Command Description show spanning-tree summary Displays a summary of the spanning-tree port states. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-439 0L-10102-01...
This example shows how to enable the BPDU filtering feature on a port: Switch(config)# interface fastethernet0/1 Switch(config-if)# spanning-tree bpdufilter enable You can verify your setting by entering the show running-config privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-440 0L-10102-01...
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Displays the current operating configuration. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. spanning-tree portfast (global Globally enables the BPDU filtering or the BPDU guard feature...
This example shows how to enable the BPDU guard feature on a port: Switch(config)# interface fastethernet0/1 Switch(config-if)# spanning-tree bpduguard enable You can verify your setting by entering the show running-config privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-442 0L-10102-01...
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Displays the current operating configuration. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. spanning-tree portfast (global Globally enables the BPDU filtering or the BPDU guard feature...
Examples This example shows how to set a path cost of 250 on an interface: Switch(config)# interface fastethernet0/4 Switch(config-if)# spanning-tree cost 250 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-444 0L-10102-01...
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Description show spanning-tree interface Displays spanning-tree information for the specified interface. interface-id spanning-tree port-priority Configures an interface priority. spanning-tree vlan priority Sets the switch priority for the specified spanning-tree instance. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-445 0L-10102-01...
This example shows how to enable the EtherChannel guard misconfiguration feature: Switch(config)# spanning-tree etherchannel guard misconfig You can verify your settings by entering the show spanning-tree summary privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-446 0L-10102-01...
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Displays EtherChannel information for a channel as a one-line summary per channel-group. show interfaces status Displays the interfaces in the error-disabled state. err-disabled Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-447 0L-10102-01...
This command was introduced. Usage Guidelines In Cisco IOS Release 12.1(9)EA1 and later, Catalyst 2950 switches support the IEEE 802.1t spanning-tree extensions, and some of the bits previously used for the switch priority are now used for the extended system ID (VLAN identifier for the per-VLAN spanning-tree plus [PVST+] and for rapid PVST+ or an instance identifier for the multiple spanning tree [MST]).
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Configures the multiple spanning-tree (MST) root switch priority and timers based on the network diameter. spanning-tree vlan priority Sets the switch priority for the specified spanning-tree instance. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-449 0L-10102-01...
UplinkFast feature are placed in the root-inconsistent state (blocked) and prevented from reaching the forwarding state. The UplinkFast feature is not available when the switch is operating in rapid-PVST+ or MST mode. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-450 0L-10102-01...
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Description show running-config Displays the current operating configuration. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. spanning-tree cost Sets the path cost for spanning-tree calculations.
You can verify your settings by entering the show spanning-tree mst interface interface-id privileged EXEC command. Related Commands Command Description show spanning-tree mst interface Displays multiple spanning-tree (MST) information for the interface-id specified interface. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-452 0L-10102-01...
Examples This example shows how to globally enable loop guard: Switch(config)# spanning-tree loopguard default You can verify your settings by entering the show running-config privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-453 0L-10102-01...
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Description show running-config Displays the current operating configuration. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. spanning-tree guard loop Enables the loop guard feature on all the VLANs associated with the specified interface.
Switch(config)# spanning-tree mode mst This example shows to enable rapid PVST+ on the switch: Switch(config)# spanning-tree mode rapid-pvst You can verify your setting by entering the show running-config privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-455 0L-10102-01...
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Description show running-config Displays the current operating configuration. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-456...
[current | pending]: displays the current or pending MST region configuration. • In MST mode, the switch supports up to 16 MST instances. The number of VLANs that can be mapped to a particular MST instance is unlimited. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-457 0L-10102-01...
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Switch(config-mst)# no instance 2 You can verify your settings by entering the show pending MST configuration command. Related Commands Command Description show spanning-tree mst configuration Displays the MST region configuration. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-458 0L-10102-01...
This example shows how to set a path cost of 250 on an interface associated with instances 2 and 4: Switch(config)# interface fastethernet0/4 Switch(config-if)# spanning-tree mst 2,4 cost 250 You can verify your settings by entering the show spanning-tree mst interface interface-id privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-459 0L-10102-01...
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Displays MST information for the specified interface. interface interface-id spanning-tree mst Configures an interface priority. port-priority spanning-tree mst priority Configures the switch priority for the specified spanning-tree instance. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-460 0L-10102-01...
Sets the interval between messages that the spanning tree receives from the root switch. spanning-tree mst max-hops Sets the number of hops in a region before the BPDU is discarded. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-461 0L-10102-01...
Sets the interval between messages that the spanning tree receives from the root switch. spanning-tree mst max-hops Sets the number of hops in a region before the BPDU is discarded. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-462 0L-10102-01...
This example shows how to set the spanning-tree max-age to 30 seconds for all MST instances: Switch(config)# spanning-tree mst max-age 30 You can verify your settings by entering the show spanning-tree mst privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-463 0L-10102-01...
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Sets the interval between hello BPDUs sent by root switch configuration messages. spanning-tree mst max-hops Sets the number of hops in a region before the BPDU is discarded. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-464 0L-10102-01...
Sets the interval between hello BPDUs sent by root switch configuration messages. spanning-tree mst max-age Sets the interval between messages that the spanning tree receives from the root switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-465 0L-10102-01...
20 is placed into the forwarding state if a loop occurs: Switch(config)# interface fastethernet0/2 Switch(config-if)# spanning-tree mst 20 port-priority 0 You can verify your settings by entering the show spanning-tree mst interface interface-id privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-466 0L-10102-01...
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Displays MST information for the specified interface. interface-id spanning-tree mst cost Sets the path cost for MST calculations. spanning-tree mst priority Sets the switch priority for the specified spanning-tree instance. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-467 0L-10102-01...
Command Description show spanning-tree mst instance-id Displays MST information for the specified interface. spanning-tree mst cost Sets the path cost for MST calculations. spanning-tree mst port-priority Configures an interface priority. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-468 0L-10102-01...
24576, the switch sets its own priority to 4096 less than the lowest switch priority. (4096 is the value of the least-significant bit of a 4-bit switch priority value.) Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-469...
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Sets the interval between messages that the spanning tree receives from the root switch. spanning-tree mst max-hops Sets the number of hops in a region before the BPDU is discarded. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-470 0L-10102-01...
This example shows how to increase the likelihood that the specified port will be put in the forwarding state if a loop occurs: Switch(config)# interface fastethernet0/2 Switch(config-if)# spanning-tree vlan 20 port-priority 0 You can verify your settings by entering the show spanning-tree interface interface-id privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-471 0L-10102-01...
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Displays spanning-tree information for the specified interface. interface-id spanning-tree cost Sets the path cost for spanning-tree calculations. spanning-tree vlan priority Sets the switch priority for the specified spanning-tree instance. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-472 0L-10102-01...
BPDUs. If a BPDU is received on a Port Fast-enabled port, the port loses its Port Fast-operational status and BPDU filtering is disabled. You can override the spanning-tree portfast bpdufilter default global configuration command by using the spanning-tree bdpufilter interface configuration command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-473 0L-10102-01...
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Displays the current operating configuration. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. spanning-tree bpdufilter Prevents a port from sending or receiving BPDUs.
If you configure the spanning-tree portfast default global configuration command, you can disable Port Fast on an interface that is not a trunk interface by using the spanning-tree portfast disable interface configuration command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-475 0L-10102-01...
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Displays the current operating configuration. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. spanning-tree bpdufilter Prevents a port from sending or receiving bridge protocol data units (BPDUs).
This example shows how to enable CSUF on the GBIC interface: Switch(config)# interface gigabitethernet0/1 Switch(config-if)# spanning-tree stack-port You can verify your settings by entering the show running-config privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-477 0L-10102-01...
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Displays the current operating configuration. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. spanning-tree uplinkfast Accelerates the choice of a new root port when a link or switch fails or when spanning tree reconfigures itself.
When spanning tree detects that the root port has failed, UplinkFast immediately switches over to an alternate root port, changing the new root port directly to FORWARDING state. During this time, a topology change notification is sent. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-479 0L-10102-01...
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Forces this switch to be the root switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-480 0L-10102-01...
The forward-delay time is 15 seconds. The hello time is 2 seconds. The max-age is 20 seconds. The primary root switch priority is 24576. The secondary root switch priority is 28672. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-481 0L-10102-01...
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If the root switch should fail, this switch becomes the next root switch (if the other switches in the network use the default switch priority of 32768, and therefore, are unlikely to become the root switch). Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-482...
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Enables the Port Fast feature on an interface in all its associated (interface configuration) VLANs. spanning-tree uplinkfast Enables the UplinkFast feature, which accelerates the choice of a new root port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-483 0L-10102-01...
The applicability of this command depends on the switch on which you enter it. SFP ports only operate at 1000 Mbps, and those with a 1000 BASE-T module installed can only be configured for full-duplex mode. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-484 0L-10102-01...
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This example shows how to set a port to autonegotiate at only 10 Mbps: Switch(config)# interface fastethernet0/1 Switch(config-if)# speed auto 10 This example shows how to set a port to autonegotiate at only 10 or 100 Mbps: Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-485 0L-10102-01...
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Displays the current operating configuration. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-486...
SNMP trap when a storm occurs. • Defaults Broadcast, multicast, and unicast storm control are disabled. The default action is to filter traffic and to not send an SNMP trap. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-487 0L-10102-01...
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SNMP trap. If your switch is a non-LRE Catalyst 2950 switch, the suppression levels can also be entered as the rate at which traffic is received in packets per second. A suppression value of 4294967295 packets per second means that no limit is placed on the specified traffic type.
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This example shows how to disable the shutdown action on a port: Switch(config-if)# no storm-control action shutdown You can verify your settings by entering the show storm-control privileged EXEC command. Related Commands Command Description show storm-control Displays the packet-storm control information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-489 0L-10102-01...
An access port can be assigned to only one VLAN. The VMPS server (such as a Catalyst 6000 series switch) must be configured before a port is configured as dynamic. These restrictions apply to dynamic-access ports: Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-490 0L-10102-01...
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Displays the administrative and operational status of a switching switchport (nonrouting) port, including port blocking and port protection settings. switchport mode Configures the VLAN membership mode of a port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-491 0L-10102-01...
{multicast | unicast} no switchport block {multicast | unicast} This command is available only on these switches: • Catalyst 2950 Long-Reach Ethernet (LRE) switches running Cisco IOS Release 12.1(14)EA1 or later • Catalyst 2950G-12-EI, 2950G-24-EI, 2950G-24-EI-DC, 2950G-48-EI, and 2955 switches running Cisco IOS Release 12.1(19)EA1 or later...
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Catalyst 2950 and 2955 Cisco IOS Commands switchport block Related Commands Command Description show interfaces switchport Displays the administrative and operational status of a switching port, including port blocking and port protection settings. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-493 0L-10102-01...
Switch(config-if)# You can verify the effects of the command by entering the show interfaces interface-id switchport or show running-config interface interface-id privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-494 0L-10102-01...
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Command Description show interfaces switchport Displays the administrative and operational status of a switching (nonrouting) port, including switchport mode. show running-config Displays the running configuration on the interface. interface interface-id Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-495 0L-10102-01...
If you enter trunk mode, the interface changes into permanent trunking mode and negotiates to convert the link into a trunk link even if the interface connecting to it does not agree to the change. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-496...
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Configures a port as a static-access port. switchport trunk Configures the trunk characteristics when an interface is in trunking mode. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-497 0L-10102-01...
If trunking is required on a GigaStack GBIC where both ports are in use, use the switchport mode trunk and switchport nonegotiate interface configuration commands on both GBIC interfaces to cause the interfaces to become trunks. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-498 0L-10102-01...
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Displays the administrative and operational status of a switching (nonrouting) port, including port blocking and port protection settings. switchport mode Configures the VLAN membership mode of a port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-499 0L-10102-01...
MAC addresses or increase the number of maximum allowable addresses. You are not notified that a security violation has occurred. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-500 0L-10102-01...
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MAC addresses, including those that were dynamically learned before sticky learning was enabled, to sticky secure MAC addresses. It adds all the sticky secure MAC addresses to the running configuration. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-501 0L-10102-01...
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IP phone requires one MAC address. The Cisco IP phone address is learned on the voice VLAN, but is not learned on the access VLAN. If you connect a single PC to the Cisco IP phone, no additional MAC addresses are required. If you connect more than one PC to the Cisco IP phone,...
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Deletes from the MAC address table a specific sticky secure address, all the sticky secure addresses on an interface, or all the sticky secure addresses on a switch. show port-security Displays the port security settings defined for the port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-503 0L-10102-01...
To allow continuous access to a limited number of secure addresses, set the aging type as inactivity. This removes the secure address when it becomes inactive, and other addresses can become secure. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-504...
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Displays the port security settings defined for the port. switchport port-security Enables port security on a port, restricts the use of the port to a user-defined group of stations, and configures secure MAC addresses. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-505 0L-10102-01...
The none keyword was removed and replaced by the trust keyword. Usage Guidelines In Cisco IOS Release 12.1(13)EA1 or later, the trust keyword replaces the none keyword. To instruct the IP Phone to not trust the priority, you can use the no switchport priority extend or the switchport priority extend cos 0 interface configuration command.
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Related Commands Command Description show interfaces Displays the administrative and operational status of a port or all ports. switchport voice vlan Configures the voice VLAN on the port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-507 0L-10102-01...
You can verify your settings by entering the show interfaces switchport privileged EXEC command. Related Commands Command Description show interfaces switchport Displays the administrative and operational staus of a switching port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-508 0L-10102-01...
Use a hyphen to designate a range of IDs; do not enter a space before or after the hyphen. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-509 0L-10102-01...
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VLAN trunk port by removing VLAN 1 from the allowed list. This is known as VLAN 1 minimization. VLAN 1 minimization disables VLAN 1 (the default VLAN on all Cisco switch trunk ports) on an individual VLAN trunk link. As a result, no user traffic, including spanning-tree advertisements, is sent or received on VLAN 1.
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You can verify your settings by entering the show interfaces interface-id switchport privileged EXEC command. Related Commands Command Description show interfaces switchport Displays the administrative and operational status of a switching (nonrouting) port. switchport mode Configures the VLAN membership mode of a port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-511 0L-10102-01...
IP phone requires one MAC address. The Cisco IP phone address is learned on the voice VLAN, but is not learned on the access VLAN. If you connect a single PC to the Cisco IP phone, no additional MAC addresses are required.
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Displays the administrative and operational status of a switching (nonrouting) port. switchport priority extend Determines how the device connected to the specified port handles priority traffic received on its incoming port. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-513 0L-10102-01...
Simple Network Management Protocol (SNMP), Telnet, or routing protocols. If you enter a value that is outside of the range for the switch, the value is not accepted. You cannot set the MTU on a per-interface basis. Note Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-514 0L-10102-01...
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You can verify your settings by entering the show system mtu privileged EXEC command. Related Commands Command Description show system mtu Displays the maximum packet size set for the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-515 0L-10102-01...
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Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands system mtu Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-516 0L-10102-01...
This command was introduced. Usage Guidelines For Layer 2 traceroute to functional properly, Cisco Discovery Protocol (CDP) must be enabled on all the switches in the network. Do not disable CDP. When the switch detects a device in the Layer 2 path that does not support Layer 2 traceroute, the switch continues to send Layer 2 trace queries and lets them time out.
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Command Description traceroute mac ip Displays the Layer 2 path taken by the packets from the specified source IP address or hostname to the specified destination IP address or hostname. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-521 OL-10102-01...
This command was introduced. Usage Guidelines For Layer 2 traceroute to functional properly, Cisco Discovery Protocol (CDP) must be enabled on all the switches in the network. Do not disable CDP. When the switch detects an device in the Layer 2 path that does not support Layer 2 traceroute, the switch continues to send Layer 2 trace queries and lets them time out.
Layer2 trace aborted. Related Commands Command Description traceroute mac Displays the Layer 2 path taken by the packets from the specified source MAC address to the specified destination MAC address. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-523 OL-10102-01...
You can use these commands to reset an interface shut down by UDLD: The udld reset privileged EXEC command to reset all interfaces shut down by UDLD • The shutdown and no shutdown interface configuration commands • Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-524 OL-10102-01...
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Displays the running configuration on the switch. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. show udld Displays the UDLD status for all ports or the specified port.
Use the no udld port command on fiber-optic ports to return control of UDLD to the udld enable global configuration command or to disable UDLD on nonfiber-optic ports. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-526 OL-10102-01...
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Displays the running configuration on the switch. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. show udld Displays UDLD status for all ports or the specified port.
Displays the running configuration on the switch. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands. show udld Displays UDLD status for all ports or the specified port.
Upgrade configurations given in the controller configuration mode take precedence over upgrade configurations given in the global configuration mode. Examples This example shows how to configures a Cisco 585 LRE CPE on an LRE link to use version 51.00.00.bin the next time LRE update runs: Switch# configure terminal Switch(config)# controller longreachethernet 0 Switch(config-controller)# upgrade binary cisco585-lre_vdslsngl_51.00.00.bin remote...
Use the no form of the command to allow upgrades on the devices. upgrade preserve no upgrade preserve This command is available only on a Catalyst 2950 LRE switch. Syntax Description This command has no arguments or keywords. Command Modes...
VTP mode and the VLAN configuration for the first 1005 VLANs use the VLAN database information. If the image on the switch or the configuration file is earlier than Cisco IOS Release 12.1(9)EA1, • the switch reboots with information in the VLAN database.
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VLAN Trunking Protocol (VTP) global advertisements to other switches. These VLANs are locally suspended. – ethernet is Ethernet media type (the default). fddi is FDDI media type. – fd-net is FDDI network entity title (NET) media type. – Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-532 OL-10102-01...
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VLAN is translationally bridged. Translational VLANs translate FDDI or Token Ring to Ethernet, for example. The range is 0 to 1005. If no value is specified, 0 (no transitional bridging) is assumed. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-533...
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VLAN ID. Only one backup concentrator relay function (CRF) can be enabled. VTP v2 mode is enabled, and you Do not specify a backup CRF. are configuring VLANs other than TrCRF media type. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-534 OL-10102-01...
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You can verify your setting by entering the show vlan privileged EXEC command. Related Commands Command Description show running-config vlan Displays all or a range of VLAN-related configurations on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-535 OL-10102-01...
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Displays the parameters for all configured VLANs or one VLAN (if the VLAN ID or name is specified) in the administrative domain. vlan (VLAN configuration) Configures normal-range VLANs in the VLAN database. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-536 OL-10102-01...
The bridge number range is 0 to 15. The type keyword applies only to TrCRF VLANs and is one of these: srb (source-route bridging) • srt (source-route transparent) bridging VLAN • Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-537 OL-10102-01...
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Ring to Ethernet, for example. The range is 0 to 1005. Zero is assumed if no value is specified. Table 2-37 shows the valid syntax options for different media types. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-538 OL-10102-01...
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VLAN ID. Only one backup concentrator relay function (CRF) can be enabled. VTP v2 mode is enabled, and you Do not specify a backup CRF. are configuring VLANs other than TrCRF media type. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-539 OL-10102-01...
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The STP type is ieee for FDDI-NET and ibm for Token Ring-NET VLANs. For FDDI and Token Ring VLANs, the default is no type specified. The tb-vlan1-id and tb-vlan2-id variables are zero (no translational bridging). Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-540 OL-10102-01...
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VTP mode and the VLAN configuration for the first 1005 VLANs use VLAN database information. • If the image on the switch or the configuration file is earlier than Cisco IOS Release 12.1(9)EA1, the switch reboots with information in the VLAN database. The following are the results of using the no vlan commands: •...
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Displays the parameters for all configured VLANs or one VLAN (if the VLAN ID or name is specified) in the administrative domain. vlan (global Enters config-vlan mode for configuring normal-range and extended-range configuration) VLANs. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-542 OL-10102-01...
VLAN. For • more information, see the vlan (VLAN configuration) command. vtp: accesses subcommands to perform VTP administrative functions. For more information, see the • vtp (VLAN configuration) command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-543 OL-10102-01...
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Displays the parameters for all configured VLANs in the administrative domain. shutdown vlan Shuts down (suspends) local traffic on the specified VLAN. vlan (global Enters config-vlan mode for configuring normal-range and extended-range configuration) VLANs. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-545 OL-10102-01...
Reconfirm Interval row. Related Commands Command Description show vmps Displays VQP and VMPS information. vmps reconfirm (privileged EXEC) Sends VQP queries to reconfirm all dynamic VLAN assignments with the VMPS. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-546 OL-10102-01...
Related Commands Command Description show vmps Displays VQP and VMPS information. vmps reconfirm (global Changes the reconfirmation interval for the VQP client. configuration) Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-547 OL-10102-01...
You can verify your settings by entering the show vmps privileged EXEC command and examining information in the Server Retry Count row. Related Commands Command Description show vmps Displays VQP and VMPS information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-548 OL-10102-01...
This example shows how to configure the server with IP address 191.10.49.20 as the primary VMPS server. The servers with IP addresses 191.10.49.21 and 191.10.49.22 are configured as secondary servers. Switch(config)# vmps server 191.10.49.20 primary Switch(config)# vmps server 191.10.49.21 Switch(config)# vmps server 191.10.49.22 Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-549 OL-10102-01...
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You can verify your settings by entering the show vmps privileged EXEC command and examining information in the VMPS Domain Server row. Related Commands Command Description show vmps Displays VQP and VMPS information. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-550 OL-10102-01...
VTP administrative domain for the switch. The domain name is case sensitive. file filename Specify the Cisco IOS file system file where the VTP VLAN configuration is stored. interface name Specify the name of the interface providing the VTP ID updated for this device.
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VLAN database information, and configuration for VLAN IDs greater than 1005 is determined by the switch configuration file. If the image on the switch or the configuration file is earlier than Cisco IOS Release 12.1(9)EA1, • the switch reboots using the information in the VLAN database.
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VTP domain. If you are using VTP in a Token Ring environment, VTP version 2 must be enabled. • Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-553 OL-10102-01...
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Related Commands Command Description show vtp status Displays the VTP statistics for the switch and general information about the VTP management domain status. vtp (VLAN Configures most VTP characteristics. configuration) Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-554 OL-10102-01...
{password password | pruning | version number} no vtp {password | pruning | version} Beginning with Cisco IOS Release 12.1(11)EA1, these keywords are available in the vtp global Note configuration command. This command will become obsolete in a future release.
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Configures the VTP filename, interface, domain-name, and mode, which can configuration) be saved in the switch configuration file. vtp (VLAN Configures all VTP characteristics but cannot be saved to the switch configuration) configuration file. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-556 OL-10102-01...
VLAN configurations on other devices in the network. The switch receives VTP advertisements and forwards them on all trunk ports except the one on which the advertisement was received. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-557 OL-10102-01...
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VTP can be set to either server or client mode only when dynamic VLAN creation is disabled. • Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-558 OL-10102-01...
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Switch(vlan)# vtp domain OurDomainName Changing VTP domain name from cisco to OurDomainName This example shows how to configure the VTP domain password: Switch(vlan)# vtp password private Setting device VLAN database password to private. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-559 OL-10102-01...
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Displays the VTP statistics for the switch and general information about the VTP management domain status. switchport trunk Configures the VLAN pruning-eligible list for ports in trunking mode. pruning vtp (global Configures the VTP filename, interface, domain-name, and mode. configuration) Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-560 OL-10102-01...
20, and 30 to the queues 1, 2, and 3: Switch(config)# wrr-queue bandwidth 10 20 30 0 You can verify your settings by entering the show wrr-queue bandwidth privileged EXEC command. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-561 OL-10102-01...
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Assigns CoS values to the CoS priority queues. show wrr-queue bandwidth Displays the WRR bandwidth allocation for the four CoS priority queues. show wrr-queue cos-map Displays the mapping of the CoS to the CoS priority queues. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-562 OL-10102-01...
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Switch(config)# wrr-queue cos-map 2 0 1 2 3 After entering the wrr-queue cos-map 2 0 1 2 3 command, if all other priority queues use their default setting, this is the new mapping: Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-563 OL-10102-01...
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Assigns weighted round-robin (WRR) weights to the four CoS priority queues. show wrr-queue bandwidth Displays the WRR bandwidth allocation for the four CoS priority queues. show wrr-queue cos-map Displays the mapping of the CoS to the priority queues. Catalyst 2950 and Catalyst 2955 Switch Command Reference 2-564 OL-10102-01...
This appendix describes the commands used to monitor switch conditions on the Catalyst 2955 switch. These commands are not supported on the Catalyst 2950 switch. For more information about how to use the commands, see the “Configuring Catalyst 2955 Switch Note Alarms”...
Displays the running configuration on the switch, including FCS hysteresis threshold if it is not set at the default. For syntax information, see the Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands.
Sets the switch to operate in dual power-supply mode. show alarm settings Displays environmental alarm settings and options. snmp-server enable traps Enables the switch to send SNMP notification for various trap types to the network management system (NMS). Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
Before you use the notifies keyword to sent alarm traps to an SNMP host, you need to set up an SNMP server by using the snmp-server enable traps global configuration command. Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
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Command Description show alarm settings Displays environmental alarm settings and options. snmp-server enable traps Enables the switch to send SNMP notification for various trap types to the network management system (NMS). Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
Before you use the notifies keyword to send alarm traps to a SNMP host, you need to set up an SNMP server by using the snmp-server enable traps global configuration command. Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
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Displays all alarm profiles or a specified alarm profile and lists the interfaces to which each profile is attached. snmp-server enable traps Enables the switch to send SNMP notification for various trap types to the network management system (NMS). Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
Creates or identifies an alarm profile and enters alarm-profile configuration configuration) mode. show alarm profile Displays all alarm profiles or a specified alarm profile and lists the interfaces to which each profile is attached. Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
Sets the FCS hysteresis threshold for the switch in a percentage of allowed fluctuation from the FCS bit error rate configured on a port. show fcs-threshold Displays the FCS error bit rate settings on each interface as positive exponents. Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
Description alarm facility power-supply Sets the switch to monitor for a missing or failed power supply and sets the alarm options. show alarm settings Displays environmental alarm settings and options. Catalyst 2950 and Catalyst 2955 Switch Command Reference A-10 OL-10102-01...
Creates an alarm profile containing one or more alarm IDs and alarm options. configuration) show alarm profile Displays all alarm profiles or a specified alarm profile and lists the interfaces to which each profile is attached. Catalyst 2950 and Catalyst 2955 Switch Command Reference A-11 OL-10102-01...
Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear. Catalyst 2950 and Catalyst 2955 Switch Command Reference A-12 OL-10102-01...
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Command Description alarm profile (global Creates an alarm profile containing one or more alarm IDs and alarm configuration) options. alarm profile (interface Attaches an alarm profile to an interface. configuration) Catalyst 2950 and Catalyst 2955 Switch Command Reference A-13 OL-10102-01...
Catalyst 2955 switch. show env {all | power | temperature}[ | {begin | exclude | include} expression] Note This command is supported with different keywords on the Catalyst 2950 platform. Syntax Description Display power supply and temperature environmental status. power Display power supply environmental status.
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Power supply B is present Current temperature is 49C Highest temperature was 53C Mar 04 1993 04:06:36 Related Commands Command Description power-supply dual Sets dual power-supply mode on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference A-17 OL-10102-01...
Sets temperature alarm options. alarm profile (global Creates alarm profiles with alarm IDs and alarm options to be configuration) attached to interfaces. show facility-alarm status Display alarms generated on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference A-18 OL-10102-01...
Sets temperature alarm options. alarm profile (global Creates alarm profiles with alarm IDs and alarm options to be configuration) attached to interfaces. show facility-alarm relay Displays alarm relays generated on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference A-19 OL-10102-01...
Displays all alarm profiles or a specified alarm profile and lists the interfaces to which each profile is attached. show alarm settings Displays environmental alarm settings and options. show facility-alarm relay Displays alarm relays generated on the switch. Catalyst 2950 and Catalyst 2955 Switch Command Reference A-21 OL-10102-01...
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Appendix A Catalyst 2955 Alarm Commands test relay Catalyst 2950 and Catalyst 2955 Switch Command Reference A-22 OL-10102-01...
Note The default configuration for Catalyst 2950 LRE switches allows an end user with physical access to the switch to recover from a lost password by interrupting the boot process while the switch is powering up and then by entering a new password. The password recovery disable feature for Catalyst 2950 LRE...
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands boot boot Use the boot boot loader command to load and boot an executable image and to enter the command-line interface. boot [-post] filesystem:/file-url ... Syntax Description -post (Optional) Run the loaded image with an extended or comprehensive power-on self-test (POST).
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Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands boot Related Commands Command Description Sets the BOOT environment variable to boot a specific image when the BOOT keyword is appended to the command. Catalyst 2950 and Catalyst 2955 Switch Command Reference...
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands Use the cat boot loader command to display the contents of one or more files. cat filesystem:/file-url ... Syntax Description filesystem: Alias for a flash file system. Use flash: for the system board flash device.
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands copy copy Use the copy boot loader command to copy a file from a source to a destination. copy [-b block-size] filesystem:/source-file-url filesystem:/destination-file-url Syntax Description -b block-size (Optional) This option is used only for internal development and testing.
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Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands delete delete Use the delete boot loader command to delete one or more files from the specified file system. delete filesystem:/file-url ... Syntax Description filesystem: Alias for a flash file system. Use flash: for the system board flash device.
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands Use the dir boot loader command to display a list of files and directories on the specified file system. dir filesystem:/file-url ... Syntax Description filesystem: Alias for a flash file system. Use flash: for the system board flash device.
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Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands Table B-1 dir Field Descriptions (continued) Field Description 1644045 Size of the file. <date> Last modification date. env_vars Filename. Related Commands Command Description mkdir Creates one or more directories. rmdir Removes one or more directories.
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands flash_init flash_init Use the flash_init boot loader command to initialize the flash file system. flash_init Syntax Description This command has no arguments or keywords. Defaults The flash file system is automatically initialized during normal system operation.
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands format format Use the format boot loader command to format the specified file system and destroy all data in that file system. format filesystem: Syntax Description filesystem: Alias for a flash file system. Use flash: for the system board flash device.
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands fsck fsck Use the fsck boot loader command to check the file system for consistency. fsck [-test | -f] filesystem: Syntax Description -test (Optional) Initialize the file system code and perform extra POST on flash memory.
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands help help Use the help boot loader command to display the available commands. help Syntax Description This command has no arguments or keywords. Command Modes Boot loader Command History Release Modification 12.1(11)YJ...
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands load_helper load_helper Use the load_helper boot loader command to load and initialize one or more helper images, which extend or patch the functionality of the boot loader. load_helper filesystem:/file-url ...
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands memory memory Use the memory boot loader command to display memory heap utilization information. memory Syntax Description This command has no arguments or keywords. Command Modes Boot loader Command History...
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Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands memory Table B-2 Memory Field Descriptions (continued) Field Description Stack Beginning and ending address of the area in memory allocated to the software to store automatic variables, return addresses, and so forth.
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands mkdir mkdir Use the mkdir boot loader command to create one or more new directories on the specified file system. mkdir filesystem:/directory-url ... Syntax Description filesystem: Alias for a flash file system. Use flash: for the system board flash device.
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands more more Use the more boot loader command to display the contents of one or more files. more filesystem:/file-url ... Syntax Description filesystem: Alias for a flash file system. Use flash: for the system board flash device.
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands rename rename Use the rename boot loader command to rename a file. rename filesystem:/source-file-url filesystem:/destination-file-url Syntax Description filesystem: Alias for a flash file system. Use flash: for the system board flash device.
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands reset reset Use the reset boot loader command to perform a hard reset on the system. A hard reset is similar to power-cycling the switch, clearing the processor, registers, and memory.
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands rmdir rmdir Use the rmdir boot loader command to remove one or more empty directories from the specified file system. rmdir filesystem:/directory-url ... Syntax Description filesystem: Alias for a flash file system. Use flash: for the system board flash device.
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands Use the set boot loader command to set or display environment variables, which can be used to control the boot loader or any other software running on the switch. set variable value Note Under normal circumstances, it is not necessary to alter the setting of the environment variables.
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This variable is used only for internal development and testing. HELPER_CONFIG_FILE filesystem:/file-url—The name of the configuration file to be used by the Cisco IOS helper image. If this is not set, the file specified by the CONFIG_FILE environment variable is used by all versions of the software that are loaded, including the helper image.
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands Usage Guidelines Environment variables are case sensitive and must be entered as documented. Environment variables are stored in files as shown in Table B-3. Table B-3 Environment Variables Storage Location...
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Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands type type Use the type boot loader command to display the contents of one or more files. type filesystem:/file-url ... Syntax Description filesystem: Alias for a flash file system. Use flash: for the system board flash device.
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HELPER_CONFIG_FILE—Resets the name of the configuration file to be used by the Cisco IOS helper image. If this is not set, the file specified by the CONFIG_FILE environment variable is used by all versions of the software that are loaded, including the helper image. This variable is used only for internal development and testing.
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Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands unset Command History Release Modification 12.1(11)YJ This command was introduced. Usage Guidelines The MANUAL_BOOT environment variable can also be reset by using the no boot manual global configuration command. The BOOT environment variable can also be reset by using the no boot system global configuration command.
Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands version version Use the version boot loader command to display the boot loader version. version Syntax Description This command has no arguments or keywords. Command Modes Boot loader Command History...
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Appendix B Catalyst 2950 and 2955 Switch Boot Loader Commands version Catalyst 2950 and Catalyst 2955 Switch Command Reference B-28 OL-10102-01...
For this reason, use the debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. It is best to use the debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
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Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference...
Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. show dot1x Displays IEEE 802.1x statistics, administrative status, and operational status for the switch or for the specified interface.
Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. show etherchannel Displays EtherChannel information for the channel.
Use the debug lre privileged EXEC command to enable debugging of the Catalyst 2950 Long-Reach Ethernet (LRE) switch and links. Use the no form of this command to disable debugging. debug lre [controller | discovery | errors | profile | state | timing | upgrade] [interface-id] no debug lre [controller | discovery | errors | profile | state | timing | upgrade] [interface-id] This command is available only on a Catalyst 2950 LRE switch.
Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. show pagp Displays PAgP channel-group information.
Debugging is disabled. Command Modes Privileged EXEC Command History Release Modification 12.1(6)EA2 This command was introduced. Usage Guidelines The undebug pm command is the same as the no debug pm command. Catalyst 2950 and Catalyst 2955 Switch Command Reference OL-10102-01...
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Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. Catalyst 2950 and Catalyst 2955 Switch Command Reference...
Display the spanning-tree synchronization event debug messages. uplinkfast Display UplinkFast-event debug messages. Defaults Debugging is disabled. Command Modes Privileged EXEC Catalyst 2950 and Catalyst 2955 Switch Command Reference C-10 OL-10102-01...
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Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. show spanning-tree Displays spanning-tree state information.
Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. show spanning-tree Displays spanning-tree state information.
Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. show spanning-tree Displays spanning-tree state information.
Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. show spanning-tree Displays spanning-tree state information.
Display topology change notification event debug messages. timers Display MSTP timers for start, stop, and expire event debug messages. Defaults Debugging is disabled. Command Modes Privileged EXEC Command History Release Modification 12.1(9)EA1 This command was introduced. Catalyst 2950 and Catalyst 2955 Switch Command Reference C-15 OL-10102-01...
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Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. show spanning-tree Displays spanning-tree state information.
Release Modification 12.1(6)EA2 This command was introduced. 12.1(9)EA1 The helper keyword was added. Usage Guidelines The undebug spanning-tree switch command is the same as the no debug spanning-tree switch command. Catalyst 2950 and Catalyst 2955 Switch Command Reference C-17 OL-10102-01...
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Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. show spanning-tree Displays spanning-tree state information.
Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. show spanning-tree Displays spanning-tree state information.
The undebug switch dhcp command is the same as the no debug switch dhcp command. Related Commands Command Description show ip dhcp snooping Displays the DHCP snooping configuration. show ip dhcp snooping binding Displays the DHCP snooping binding information. Catalyst 2950 and Catalyst 2955 Switch Command Reference C-20 OL-10102-01...
Command History Release Modification 12.1(6)EA2 This command was introduced. 12.1(9)EA1 The cfg-vlan keyword was added. Usage Guidelines The undebug sw-vlan command is the same as the no debug sw-vlan command. Catalyst 2950 and Catalyst 2955 Switch Command Reference C-21 OL-10102-01...
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Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. show vlan Displays the parameters for all configured VLANs or one VLAN (if the VLAN name or ID is specified) in the administrative domain.
Use the debug sw-vlan ifs privileged EXEC command to enable debugging of the VLAN manager Cisco IOS file system (IFS) error tests. Use the no form of this command to disable debugging. debug sw-vlan ifs {open {read | write} | read {1 | 2 | 3 | 4} | write}...
Command Modes Privileged EXEC Command History Release Modification 12.1(6)EA2 This command was introduced. Usage Guidelines The undebug sw-vlan notification command is the same as the no debug sw-vlan notification command. Catalyst 2950 and Catalyst 2955 Switch Command Reference C-24 OL-10102-01...
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Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. show vlan Displays the parameters for all configured VLANs or one VLAN (if the VLAN name or ID is specified) in the administrative domain.
Display debug messages for the contents of all incoming VTP packets that have been passed into the VTP code from the Cisco IOS VTP platform-dependent layer, except for pruning packets. pruning [packets | xmit] Display debug messages generated by the pruning segment of the VTP code.
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Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. show vtp Displays general information about VTP management domain, status, and counters.
Indications of the contents of the various pieces of packets received (such as type length versions • [TLVs]) as they are examined by the packet reception code • Packet transmission attempts and the outcome Catalyst 2950 and Catalyst 2955 Switch Command Reference C-28 OL-10102-01...
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Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for IOS Release 12.1 > Cisco IOS System Management Commands > Troubleshooting Commands. show udld Displays UDLD administrative and operational status for all ports or the specified port.
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Appendix C Catalyst 2950 and 2955 Switch Debug Commands debug udld Catalyst 2950 and Catalyst 2955 Switch Command Reference C-30 OL-10102-01...
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BPDU 2-211 2-467 member switches port priority for selection of 2-468 See clusters primary or secondary 2-471 memory command switch priority B-14 2-470 Catalyst 2950 and Catalyst 2955 Switch Command Reference IN-8 78-11381-12...
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2-227 applying to an interface 2-265 receiver port 2-228 creating 2-243 source port 2-228 displaying 2-394 mvr command 2-224 policers mvr group command 2-225 displaying 2-378 mvr immediate command 2-227 Catalyst 2950 and Catalyst 2955 Switch Command Reference IN-9 78-11381-12...
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2-241 power supply alarms, setting displaying policy maps 2-394 power-supply dual command A-10 setting DSCP values 2-266 power-supply mode A-10 traffic classifications 2-35 primary temperature alarm port trust states 2-218 Catalyst 2950 and Catalyst 2955 Switch Command Reference IN-10 78-11381-12...
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Remote Switched Port Analyzer show changes command 2-544 See RSPAN show class-map command 2-277 rename command show cluster candidates command B-18 2-282 reset command show cluster command 2-544, B-19 2-279 Catalyst 2950 and Catalyst 2955 Switch Command Reference IN-11 78-11381-12...
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2-361 2-436 show lre upgrade command 2-363 snmp trap mac-notification command 2-440 show mac access-group command SNMP traps 2-367 show mac address-table command enabling MAC address notification 2-370 2-192 Catalyst 2950 and Catalyst 2955 Switch Command Reference IN-12 78-11381-12...