GigaX Series Layer 3 Managed Switch User Guide...
(including damages for loss of profits, loss of business, loss of use or data, interruption of business and the like), even if ASUS has been advised of the possibility of such damages arising from any defect or error in this manual or product.
GigaX Series L3 Managed Switch User Guide Federal Communications Commission Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: • This device may not cause harmful interference, and • This device must accept any interference received including interference that may cause undesired operation.
Address: General Fax: General Email: Web Site: Technical Support Support Fax: General Support: Notebook Support: Support Email: ASUS COMPUTER GmbH (Germany and Austria) Address: General Fax: General Email: Technical Support Support Hotlines: Support Fax: Support Email: Web Site: 150 Li-Te Road, Peitou, Taipei, Taiwan 112...
GigaX Series L3 Managed Switch User Guide Table of Contents Introduction... 12 L3 managed features ... 12 Conventions used in this document ... 14 1.2.1 1.2.2 1.2.3 Getting to know the GigaX ... 15 Package contents... 15 Front Panel... 16 Rear Panel ...
GigaX Series L3 Managed Switch User Guide List of Figures Figure 1. GigaX L3 managed switch package contents... 15 Figure 2. Front panel ... 16 Figure 3. Rear panel... 18 Figure 4. Overview of Hardware Connections ... 21 Figure 5.
Figure 26. Dynamic Address ...51 Figure 27. Static Address ...53 Figure 28. Tagged VLAN...54 Figure 29. Default Port VLAN and CoS ...55 Figure 30. CoS Queue Mapping...56 Figure 31. DHCP Snooping ...57 Figure 32. Community Table ...58 Figure 33. Host Table ...59 Figure 34.
GigaX Series L3 Managed Switch User Guide Figure 55. Removing the fan module ... 121 Figure 56. Detaching the fan from the module... 122 List of Tables Table 1. Front panel labels and LEDs... 17 Table 2. Rear panel labels ... 18 Table 3.
You may now manage your LAN (local area network) through a friendly and powerful user interface. This user guide tells you how to set up the GigaX L3 managed switch, and how to customize its configuration to get the most out of this product.
GigaX Series L3 Managed Switch User Guide • MIB-II • Enterprise MIB for PSU, fan, and system temperature, voltage • Telnet or SSH remote login • FTP for firmware update and configuration backup • DHCP snooping support • Syslog support •...
• Acronyms are defined the first time they appear in text and in the glossary. • For brevity, the GigaX switch is referred to as “the switch.” • The terms LAN and network are used interchangeably to refer to a group of Ethernet-connected computers at one site.
GigaX Series L3 Managed Switch User Guide Getting to know the GigaX Package contents The GigaX switch package comes with the following items: • 24-port L3 managed switch • AC Power cord • Null modem cable for console interface (DB9) •...
GigaX Series L3 Managed Switch User Guide Table 1. Front panel labels and LEDs Label Color SYSTEM Green Amber Green Amber Green Amber 10/100 ports Green Amber 10/100/1000 Green port status Amber 10/100/1000 Green port speed Amber Console USB Console RS232...
Rear Panel The switch rear panel contains the ports for the data and power connections. Table 2. Rear panel labels Label Power Connector FAN1 – FAN2 Technical specifications Table 3. Technical specifications Physical Dimensions 43.5mm(H) X 444 mm(W) X 265mm(D) Power Input 100-240V AC/2.5A 50-60Hz...
This section provides the basic instructions to set up the GigaX environment. Refer also to the GigaX Series Installation Guide. Part 1 shows you how to install the GigaX on a flat surface or on a rack. Part 2 provides instructions to set up the hardware.
Part 2 — Setting up the switch Connect the device to the power outlet, and your computer or network. See Figure 4. 3.2.1 Connect the console port For console management, use an RS232 (DB9) or a USB cable to connect the switch. If you want to use WEB interface, connect your PC to the switch using the Ethernet cable.
Table 4. LED Indicators System Switch ports  to  Part 3 — Basic switch setting for management After completing the hardware connections, configure the basic settings for your switch. You can manage the switch using the following methods: • Web interface: the switch has a set of pages to allow you to manage it ®...
Set the data format to no parity, 8 data bits and 1 stop bit No flow control Set VT1000 for emulation mode 4. After setting up the terminal, you can see the prompt “(ASUS)%” on the terminal. 5. Type “login” to access the command line interface. The default user name is “admin”.
GigaX Series L3 Managed Switch User Guide 3.3.2 Setting up through the Web interface To successfully connect your PC to the switch, your PC must a valid IP in your network. Contact your network administrator to obtain a valid IP for the switch.
Enter your user name and password, and then click the Configuration Manager. Use the following defaults the first time you log into this interface: Default User Name: Default Password: You can change the password at any time (see section 5.3.1 System Commands). 3.
GigaX Series L3 Managed Switch User Guide Management with the Web Interface The switch provides Web pages that allow switch management through the Internet. The program is designed to work best with Microsoft Internet Explorer® 5.5, or later versions. NOTE: Netscape is not supported.
The home page appears each time you log into the program. (See Figure Figure 9. Home page Functional layout Typical web page consists of three separate frames. The top frame has a switch logo and front panel as shown in Figures 10. This frame remains on the top of the browser window all the times and updates the LED status periodically.
GigaX Series L3 Managed Switch User Guide Table 5. Port color description Port Color Green port Ethernet link is established Black No Ethernet link Amber port Link is present but port is disabled manually or by spanning tree Clicking on the port icon of the switch displays the port configuration in the lower right frame.
GigaX Series L3 Managed Switch User Guide The above frame displays configuration pages or graphics for the statistics. See section 4.3 for details. 4.2.1 Menu navigation tips • To expand a group of related menus, click on the corresponding group name. The sign will change to after expansion.
System Pages System pages include management, IP setup, administration, reboot, and firmware update function. 4.3.1 Management The Management page contains the following information: Model Name: product name MAC Address: switch MAC address System Name: user assigned name to identify the system (editable) System Contact (editable) System Location (editable) To save any changes and make it effective immediately, click...
GigaX Series L3 Managed Switch User Guide 4.3.2 IP Setup The switch supports only static IP assignment. The IP Setup page contains the following editable information: VLAN ID: Specify a VLAN ID to system management interface. It is necessary to be within the same VLAN for management usages.
4.3.3 Administration The Administration page allows you enable or disable the authentication for web user by password protection. The default setting for web access does not require any authentication. To save any changes and make it effective immediately, click to refresh the setting, as shown in Figure 14. When you enable the password protection, you have to login again immediately.
GigaX Series L3 Managed Switch User Guide 4.3.5 Firmware Upgrade The Firmware page contains the following information: Hardware Version: shows the hardware revision number. Boot ROM Version: shows the version of the boot code Firmware Version: shows the current running firmware version. This number will be updated after the firmware update.
Physical Interface The Physical Interface displays the Ethernet port status in real time. You can configure the port in following fields: Port: select the port to configure Admin: disable/enable the port Mode: set the speed and duplex mode Flow Control: enable/disable 802.3x flow control mechanism Port Status Window: displays the following information for each port Link status: the link speed and duplex for an existing link, otherwise link is down...
Route This command group offers L3 interface and route entry configuration 4.5.1 Interfaces Generally, Layer 3/routed interfaces are used to route traffic between the VLAN, this is so-called inter-VLAN routing. That is, different VLANs exchange data with going through Layer 3 interfaces and need not an external router.
GigaX Series L3 Managed Switch User Guide Select the corresponding interface and configure the interface parameters. To save any changes and make it effective immediately, click field you changed will update the content in the display window. By default, Layer 3 switching is disabled. You have to create and activate Layer 3 interface(s) before enable Layer 3 switching.
4.5.2 Static Route Static routing is the simplest form of network routing. It makes available to a switch/router to forward packets from predetermined ports through a predictable path into and out of a network. Static routing is solid, but does not address to the fluctuation in the network, therefore, it might result in destination net unreachable.
GigaX Series L3 Managed Switch User Guide Figure 18. Static Route 4.5.3 The Routing Information Protocol (RIP) is documented in RFC 1388 1723. In short, RIP is a distance-vector routing protocol that exchange routing information using UDP packets. RIP configuration includes the following information: RIP process: enable/disable.
By default, RIP process is disabled and two of RIP Versions are assigned for the switch. All Layer 3 interfaces are classified as RIP enabled interfaces. Once the RIP process has been enabled, the current state of the active process will be displayed. You can click to refresh the updated status.
GigaX Series L3 Managed Switch User Guide 4.6.1 Spanning Tree/Rapid Spanning Tree The configuration page for Spanning Tree Protocol can disable and enable the feature in runtime. This page consists of three parts. The first part shows the root information. It tells user the STP setting about the root switch.
Point to Point: Auto/Yes/No. A full duplex link is considered as a point to point link. Otherwise, it is a shared link. Point to point link may have less convergence time. Auto is recommended in most cases. Click to effect the settings. Click the current value.
GigaX Series L3 Managed Switch User Guide Port Selection Criterion: the algorithm to distribute packets among the ports of the link aggregation group according to source MAC address, destination MAC address, source and destination MAC address, source IP address, destination IP address, or source and destination IP address.
aggregation could operate abnormally. • All the ports in the link aggregation group MUST have the same VLAN setting. • All the ports in the link aggregation group are treated as a single logical link. That is, if any member changes an attribute, the others will change too.
Monitor Port: Receives the copies of all the traffics in the selected mirrored ports. GigaX 3024X has only one monitor port. The port can monitor 24 Fast Ethernet ports and two Gigabit ports. The monitor port can not belong to any link aggregation group.
4.6.4 Static Multicast This page can add multicast addresses into the multicast table. The switch can hold up to 256 multicast entries. All the ports in the group will forward the specified multicast packets to other ports in the group. Show Group: selects “Add a new Group”...
GigaX Series L3 Managed Switch User Guide Figure 24. IGMP Snooping 4.6.6 Traffic Control Traffic control prevents the switch bandwidth from flooding packets including broadcast packets, multicast packets and the unicast packets because of destination address lookup failure. The limit number is a threshold to limit the total number of the checked type packets.
Figure 25. Traffic Control 4.6.7 Dynamic Addresses This page displays the result of dynamic MAC address lookup by port, VLAN ID, or specified MAC address. The dynamic address is the MAC address learned by switch, it will age out from the address table if the address is not learned again during the age time.
4.6.8 Static Addresses You can add a MAC address into the switch address table. The MAC address added by this way will not age out from the address table. We call it static address. MAC Address: enter the MAC address VLAN ID: enter the VLAN ID that the MAC belongs Port Selection: select the port which the MAC belongs Discard: you can do packet filtering when the MAC address appears in...
GigaX Series L3 Managed Switch User Guide Figure 27. Static Address 4.6.9 Tagged VLAN You can set up to 255 VLAN groups and show VLAN group in this page. There is a default VLAN created by the switch. It cannot be removed at all.
GigaX Series L3 Managed Switch User Guide 4.6.10 Default Port VLAN and CoS Some VLAN tag related field settings for each port are included in this page. It includes: Port: select the port to configure PVID: port-based VLAN ID. Every untagged packet received from this...
4.6.11 CoS Queue Mapping The switch supports 4 egress queues for each port with a strict priority schedule. That is, each CoS value can map into one of the four queues. The queue 4 has the highest priority to transmit the packets. Click to save the configuration.
SNMP This group offers the SNMP configuration including Community Table, Host Table, and Trap Setting. To provide more secure management and access control, SNMPv3 is supported. 4.7.1 Community Table You can type different community names and specify whether the community has the privilege to do set action (write access) by checking the box.
GigaX Series L3 Managed Switch User Guide 4.7.2 Host Table This page links host IP address to the community name that is entered in Community Table page. Type an IP address and select the community name from the drop-down list. Click...
4.7.3 Trap Setting By setting trap destination IP addresses and community names, you can enable SNMP trap function to send trap packets in different versions (v1 or v2c). Click to refresh the page. 4.7.4 VACM Group VACM (View-based Access Control Model) Group is used to configure the information of SNMPV3 VACM Group.
GigaX Series L3 Managed Switch User Guide Security level: enter the Security level Name that the Group belongs. Only NoAuth, AuthNopriv, AuthPriv can be chosen. Click on the when you create a new VACM group entry by the above information. Then you will see the new added entry shows in the group window.
View Name: enter the security group name. View Type: enter the View Type that the View belongs. Included or Excluded when View Subtree matches the Oid in the SNMPv3 message. View Subtree: enter the View Subtree that the View belongs. The Subtree is the Oid to match the Oid in the SNMPv3 message.
GigaX Series L3 Managed Switch User Guide 4.7.6 USM User USM (User-based Security Model) User is used to configure the information of SNMPV3 USM User. Engine Id: enter the Engine Id that should match the ID in the Manager. Name: enter Name combined with Engine ID that should match the Name and Engine ID in the Manager.
GigaX Series L3 Managed Switch User Guide Filters The switch can filter certain traffic types according to packet header information from Layer 2 to Layer 4. Each filter set includes a couple of rules. You have to attach the filter set to certain ports to make the filter work.
Figure 38. Filter Set The Filter Rule page provides options for rule modes, one is MAC rule (Figure 39) and the other is IP rule (Figure 40). If you did not enter the MAC address in the blank box, it means the rule doesn’t care the MAC value. In IP rule setup, you can enter any of the 5 types, source IP, destination IP, protocol, source application port and destination application port.
4.8.2 Filter Attach A filter set is idle if you did not attach it to any ingress or egress port. Use the Filter Attach page to attach a filter set to ingress and egress ports. Click to save the configuration. To make the configuration effective, go to the “Save Configuration”...
Security The switch has the 802.1x port-based security feature. Only authorized hosts are allowed to access the switch port. Traffic is blocked for hosts failed to authenticate themselves. The authentication service is provided by a RADIUS server or the local database in the switch. The switch also supports dynamic VLAN assignment through 802.1x authentication process.
GigaX Series L3 Managed Switch User Guide • Multi-host: If enabled, ALL hosts connected to the selected port are allowed to use the port if ONE of the hosts passed the authentication. If disabled, only ONE host among other hosts passed the authentication is allowed to use the port.
4.9.2 Dial-In User Dial-in User is used to define users in the local database of the switch. • User Name: New user name. • Password: Password for the new user. • Confirm Password: Enter the password again. • Dynamic VLAN: Specify the VLAN ID assigned to the 802.1x-authenticated clients.
GigaX Series L3 Managed Switch User Guide 4.9.3 RADIUS In order to use external RADIUS server, the following parameters are required to be setup: • Authentication Server IP: The IP address of the RADIUS server. • Authentication Server Port: The port number for the RADIUS server is listening to.
4.10 Statistics Chart The Statistics Chart pages provide network flow in different charts. You can specify the period time to refresh the chart. You can monitor the network traffic amount in different graphic chart by these pages. Most MIB-II counters are displayed in these charts. Click Refresh Rate to set the period for retrieving new data from the switch.
GigaX Series L3 Managed Switch User Guide Figure 45. Traffic comparison 4.10.2 Error Group Selecting the Port and display Color, then clicking Draw, the statistics window shows you all the discards or error counts for the specified port. The data is updated periodically.
GigaX Series L3 Managed Switch User Guide 4.11 Save Configuration To save configuration permanently, you have to click setting also takes effective after a successful save. Sometimes you may want to reset the switch configuration, you can click to reset the configuration file to factory default. Of course, a system reboot will follow this restoration process.
Console Interface This chapter describes how to use console interface to configure the switch. The switch provides RS232 and USB connectors to connect your PC. Use a terminal emulator on your PC such as HyperTerminal and command line interpreter to configure the switch. You have to set up the terminal emulator with baud rate 9600, 8 bit data, no parity, and 1 stop bit, and no flow control.
GigaX Series L3 Managed Switch User Guide Power On Self Test POST is executing during the system booting time. It tests system memory, LED and hardware chips on the switchboard. It displays system information as the result of system test and initialization. You can ignore the information until the prompt, “(ASUS)%”, appears (see Figure 49).
5.1.1 Boot ROM Command Mode During the POST process, you can enter a “Boot ROM Command” mode by pressing <ENTER> key as shown in Figure 50. Figure 50 shows dual images in the switch. One firmware is in Slot 0 and the other firmware is in Slot 1.
GigaX Series L3 Managed Switch User Guide 5.1.2 Boot ROM Commands Type “?” in the boot mode to display the valid commands list. Table 7. Boot ROM commands Command Parameters Address [,length] NONE NONE O or 1 or a 0, 1, 2, 3...
For security reason, please change the user name and password after login. Once you forget the use name and password, you may contact ASUS support team or erase the whole configuration file in the Boot ROM Command mode. If you take the second choice, the whole system configuration is lost at the same time.
GigaX Series L3 Managed Switch User Guide [System Contact] Displays the detail information of contact about the switch. This is an RFC-1213 defined MIB object in System Group, and provides contact information on the managed node. CLI command : sys info contact <system contact description>...
[VLAN ID] Displays the VLAN ID for the switch. It is necessary to be within the same VLAN for management usages. CLI command: l3 interface vlan sw0 <VLAN ID> [IP Address] Displays the static IP address for the switch. This IP address is used for manageable purpose, i.e.
GigaX Series L3 Managed Switch User Guide password (old password, no password by default): <new password> [Reboot] User can reboot the switch by issuing the reboot command. CLI command: sys reboot [Upload] No CLI command for this function. Refer to Boot ROM commands for this function.
CLI command : sys l2 port retrieve 5.3.3 Route Commands [Show L3 Interfaces] Displays all L3 interfaces settings. CLI command : l3 interface show <trunk id> [Create L3 Interfaces] User can create a new L3 interface by specify an unique interface name, the interface type (VLAN, virtual interface or Port, routed port), and its type member (VLAN ID or port ID).
GigaX Series L3 Managed Switch User Guide [Add Static Route] Insert a static route entry into the routing table by giving the destination IP, gateway IP address, subnet mask and the metric. CLI command : l3 route static add <dst> <gateway> <mask> <metric>...
[RIP-disabled interfaces] You can specify an L3 interface as RIP-disabled interface if you do not want this interface to deal with any RIP message, either incoming or outgoing. CLI command : l3 rip interface remove <interface name/* for all> 5.3.4 Bridge Commands [Spanning Tree is] [STP Enabled/ RSTP Enabled/ Disabled] Allows user to specify whether the switch participates in the Spanning Tree...
GigaX Series L3 Managed Switch User Guide Port <port number> Path Cost (1..200000000):[old port Path Cost] <new port Path Cost> Port <port number> EdgePort (yes/no):[old port EdgePort] <new port EdgePort > Port <port number> Point-to-Point (yes/no/auto):[old port Point-to-Point] <new port Point-to-Point >...
6: select port by source and destination IP CLI command: l2 trunk create <trunk id> <rtag (1-6)> <trunk name> <lacp (enable/disable)> <port list> [Add/Remove Trunk] Trunk group port members can be added to or removed from an existing trunk group. CLI command : l2 trunk add <trunk id>...
GigaX Series L3 Managed Switch User Guide CLI command : l2 mirror egress <port list> CLI command : l2 mirror remove <ingress/egress> <port list> [Reload] Restores the previous saved settings from configuration file. CLI command : l2 mirror retrieve [Show Multicast Group] Displays the static multicast groups that are presented in the multicast group table.
vlan id: <vlan id> [Reload] Restores the previous saved settings from configuration file. CLI command : l2 mcast retrieve [IGMP] [Enabled/Disabled] Layer 2 IGMP snooping can be started or terminated by user if necessary. CLI command : l2 igmp <start/stop> [Reload] Restores the previous saved settings from configuration file.
GigaX Series L3 Managed Switch User Guide [Aging Time] User can set the ARL(Address Resolution Logic) entries aging time by setting the aging time value. CLI command : l2 arl age [aging time value] [Query by Port] ARL entries existed in ARL table can be queried according to port number.
[Reload] Restores the previous saved settings from configuration file. CLI command : l2 arl retrieve [Show VLAN] Displays the existing VLAN information of the switch. CLI command : l2 vlan show <vlan id> [Name] [VLAN ID] Allows user to config the VLAN settings. User may create a new VLAN by giving a unique VLAN ID, a VLAN description name, and its port member list, note that the port member here is indicated as tagged port member.
GigaX Series L3 Managed Switch User Guide [Retrieve] Restores the previous saved settings from configuration file. CLI command : l2 vlan retrieve [PVID] Sets the default VLAN for a port by giving a VLAN ID and its associated port member list.
[Add/Remove Trusted Port] Allows user to add or remove specific ports for DHCP snooping. CLI command : l2 dhcpsnoop add <port list> CLI command : l2 dhcpsnoop remove <port list> [Retrieve] Restores the previous saved settings from configuration file. CLI command : l2 dhcpsnoop retrieve 5.3.5 SNMP [Community Name] [Set]...
GigaX Series L3 Managed Switch User Guide CLI command : snmp community delete Allows user to delete a community entry from community table. Community entry (table index): <entry id to delete> This action will delete all hosts in community string with 'delete community'.
Entry id (table index): <entry id to delete> [Retrieve] Restores the previous saved settings from configuration file. CLI command : snmp host retrieve [Trap Version] [v1/v2c] [Destination] [Community for Trap] A trap entry contains SNMP version (currently support version 1 and version 2c), a destination IP address and the remote community string.
GigaX Series L3 Managed Switch User Guide CLI command : snmp trap retrieve [Group Name] [Read View Name] [Write View Name] [Notify View Name] [Security Model] [Security level] A VACM (View-based Access Control Model) Group entry contains a group name, read view name, write view name, notify view name, security model, security level and context match.
Security Level [1/2/3](noauth/authnopriv/authpriv): (old security level) <new security level> Context Match [0/1](inexact/exact): (old context match) <new context match> Read View Name: (old read view name string) <new read view name string> Write View Name: (old write view name string) <new write view name string>...
GigaX Series L3 Managed Switch User Guide View Type[1/2](included/excluded): <view type> CLI command : snmp snmpv3 view set User can modify a VACM View entry in the table by reassigning its allowed view name, view type, view subtree and view mask.
CLI command : snmp snmpv3 usmuser add EngineId: <engine id string > Name: <user name string > AuthProtocol [oid]: <auth protocol oid string > AuthPassword: <auth password string> Priv Protocol [oid]: <priv protocol oid string > Priv Password: <priv password string > CLI command : snmp snmpv3 usmuser set User can modify a USM User entry in the table by reassigning its allowed engine Id, name, auth protocol, auth password, priv protocol and priv...
GigaX Series L3 Managed Switch User Guide 5.3.5 Filters Commands [New] Creates a new filter set with specifying a unique ACL ID and its description name. CLI command : filter set new <acl id> <acl name> [Remove] User can delete a filter set by indicating the ACL ID.
[Rule Mode] [IP Rule] [Action] [Permit/Deny] [Source IP] [Type/IP, Mask] [Destination IP] [Type/IP, Mask] [Source Port] [Type/Port] [Destination Port] [Type/Port] [Protocol] [ICMP/TCP/UDP/ANY] [Add] User can add a new IP rule associated to a filter set. These filter rule works with ICMP, TCP or UDP protocols with permit or deny options. User can also specify the IP address (source or destination) and port number of the filter rule using the CLI command dstip/srcip and dstport/srcport, respectively.
GigaX Series L3 Managed Switch User Guide [Filter ID] Displays the filter configurations. CLI command : filter show [Ingress Port] Applies a filter set to an ingress port. CLI command : filter apply ingress <filter set id> <any/none/[port number]> [Egress Port] Applies a filter set to an egress port.
CLI command : security dot1x bridge authmeth <type (1:local 2:radius)> [Quiet Period] Allows user to set up the quiet period. CLI command : security dot1x bridge quietperiod <quiet period (1-65535 sec)> [Retransmission Time] Allows user to set up the retransmission time. CLI command : security dot1x bridge retxtime <retransmission time (1-65535 sec)>...
GigaX Series L3 Managed Switch User Guide CLI command : security dot1x retrieve [User Name] [Password] [Confirm Password] [Dynamic VLAN] Create users in the local database of the switch for 802.1x authentication. A user entry contains a user name, password and dynamic VLAN.
[Authentication Server IP] [Authentication Server Port] [Authentication Server Key] [Confirm Authentication Key] Allows user to config the RADIUS server IP, server port and server key . CLI command : security radius set authentication server ip <ip/none>: (old server ip)<new server ip > authentication server port <port/default>: (old server port)<new server port>...
GigaX Series L3 Managed Switch User Guide [Show Generating Status] Show the SSH key generating status. It will display “success” or “SSH keys generated fail” or “system is generating keys ...”. CLI command : security sshkey show...
Miscellaneous Commands sys uptime: show the time since the system boot up. sys date: show the current date and time sys settime: set the current time sys files config backup: backup configuration files sys files config default: restore factory default configuration files sys baud: set console baud rate net ping: ping remote host l3 route show: display the entries in the routing table...
GigaX Series L3 Managed Switch User Guide IP Addresses, Network Masks, and Subnets IP Addresses This section pertains only to IP addresses for IPv4 (version 4 of the Internet Protocol). IPv6 addresses are not covered. This section assumes basic knowledge of binary numbers, bits, and bytes.
The first part of every IP address contains the network ID, and the rest of the address contains the host ID. The length of the network ID depends on the network's class (see following section). Table 7 shows the structure of an IP address.
GigaX Series L3 Managed Switch User Guide 6.1.2 Network classes The three commonly used network classes are A, B, and C. (There is also a class D but it has a special use beyond the scope of this discussion.) These classes have different uses and characteristics.
Subnet masks A mask looks like a regular IP address, but contains a pattern of bits that tells what parts of an IP address are the network ID and what parts are the host ID: bits set to 1 mean "this bit is part of the network ID" and bits set to 0 mean "this bit is part of the host ID."...
GigaX Series L3 Managed Switch User Guide The two extra bits in Field 4 can have four values (00, 01, 10, 11), so there are four subnets. Each subnet uses the remaining six bits in field4 for its host IDs, ranging from 0 to 63.
Troubleshooting This section gives instructions for using several IP utilities to diagnose problems. A list of possible problems with suggestion actions is also provided. All the known bugs are listed in the release note. Read the release note before you set up the switch. Contact Customer Support if these suggestions do not resolve the problem.
GigaX Series L3 Managed Switch User Guide Figure 52. Using the ping utility If the target computer cannot be located, you will receive the message “Request timed out.” Using the ping command, you can test whether the path to the switch is working (using the pre-configured default LAN IP address 192.168.1.1) or...
7.1.2 nslookup You can use the nslookup command to determine the IP address associated with an Internet site name. You specify the common name, and the nslookup command looks up the name on your DNS server (usually located with your ISP).
GigaX Series L3 Managed Switch User Guide Replacing defective fans Turn off the power of the switch when you remove the fan module on the rear side of the switch. When any one of the switch fans (located on the rear panel) becomes defective, you can easily replace it following these steps.
3. Carefully pull the two power cables from the fan connectors. 4. Loosen the screws that secure the fan to the module. Remove the defective fan. Figure 56. Detaching the fan from the module 5. Fasten the new fan with the screws that you removed earlier. Make sure that the fan cable is near the bottom of the module.
GigaX Series L3 Managed Switch User Guide Simple fixes The following table lists some common problems that you may encounter when installing or using the switch, and the suggested actions to solve the problems. Table 9. Troubleshooting Problem LEDs SYSTEM LED does...
Problem Web Configuration Interface You forgot/lost your 1. If you have not changed the password from the default, try using WEB Configuration Interface user ID or 2. Login to console mode through RS232 or USB, use “sys user password. Some pages do not 1.
GigaX Series L3 Managed Switch User Guide Glossary 10BASE-T A designation for the type of wiring used by Ethernet networks with a data rate of 10 Mbps. Also known as Category 3 (CAT 3) wiring. See also data rate, Ethernet.
broadcast To send data to all computers on a network. download To transfer data in the downstream direction, i.e., from the Internet to the user. Ethernet The most commonly installed computer network technology, usually using twisted pair wiring. Ethernet data rates are 10 Mbps and 100 Mbps.
GigaX Series L3 Managed Switch User Guide ICMP Internet Control Message Protocol An Internet protocol used to report errors and other network-related information. The ping command makes use of ICMP. IGMP Internet Group Management Protocol An Internet protocol that enables a computer to share information about its membership in multicast groups with adjacent routers.
IP address Internet Protocol address The address of a host (computer) on the Internet, consisting of four numbers, each from 0 to 255, separated by periods, e.g., 18.104.22.168. An IP address consists of a network ID that identifies the particular network the host belongs to, and a host ID uniquely identifying the host itself on that network.
GigaX Series L3 Managed Switch User Guide Mbps Abbreviation for Megabits per second, or one million bits per second. Network data rates are often expressed in Mbps. Monitor Also called “Roving Analysis”, allow you to attach a network analyzer to one port and use it to monitor the traffics of other ports on the switch.
ping Packet Internet (or Inter-Network) Groper A program used to verify whether the host associated with an IP address is online. It can also be used to reveal the IP address for a given domain name. port A physical access point to a device such as a computer or router, through which data flows into and out of the device.
GigaX Series L3 Managed Switch User Guide Spanning Tree Protocol The bridge protocol to avoid packet looping in a complicate network. subnet A subnet is a portion of a network. The subnet is distinguished from the larger network by a subnet mask which selects some of the computers of the network and excludes all others.
TFTP Trivial File Transfer Protocol A protocol for file transfers, TFTP is easier to use than File Transfer Protocol (FTP) but not as capable or secure. Trunk Two or more ports are combined as one virtual port, also called as Link Aggregation. Time To Live A field in an IP packet that limits the life span of that packet.
GigaX Series L3 Managed Switch User Guide Web browser A software program that uses Hyper-Text Transfer Protocol (HTTP) to download information from (and upload to) web sites, and displays the information, which may consist of text, graphic images, audio, or video, to the user. Web browsers use Hyper-Text Transfer Protocol (HTTP).