Software Guide
Page 2
..., Inc.; USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. and certain other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright © 2000-2003, Cisco Systems, Inc. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. and/or its affiliates in...
..., Inc.; USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. and certain other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright © 2000-2003, Cisco Systems, Inc. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. and/or its affiliates in...
Software Guide
Page 17
...or Disabling the "Cisco Systems Console" Telnet Login Banner 27-5 Defining and Using Command Aliases 27-6 Defining and Using IP Aliases 27-7 Configuring Permanent and Static ARP Entries 27-8 Configuring Static Routes 27-9 Scheduling a System Reset 27-10 Scheduling a Reset at a Specific Time 27-10... Scheduling a Reset Within a Specified Amount of Time 27-11 Generating System Status Reports for Tech Support 27-12 Power Management 28-1 Understanding How Power Management Works on the Catalyst 4500 Series Switches 28-1 Power Management Overview 28-2 ...
...or Disabling the "Cisco Systems Console" Telnet Login Banner 27-5 Defining and Using Command Aliases 27-6 Defining and Using IP Aliases 27-7 Configuring Permanent and Static ARP Entries 27-8 Configuring Static Routes 27-9 Scheduling a System Reset 27-10 Scheduling a Reset at a Specific Time 27-10... Scheduling a Reset Within a Specified Amount of Time 27-11 Generating System Status Reports for Tech Support 27-12 Power Management 28-1 Understanding How Power Management Works on the Catalyst 4500 Series Switches 28-1 Power Management Overview 28-2 ...
Software Guide
Page 36
... parameters. Use show commands to display the current configuration and to a specific module, port, or VLAN. If the switch is on. For more information, see this display: Cisco Systems, Inc. Accessing the Switch CLI Chapter 2 Using the Command-Line Interface The Catalyst enterprise LAN switches are multi-module systems. Commands you enter from the CLI might...
... parameters. Use show commands to display the current configuration and to a specific module, port, or VLAN. If the switch is on. For more information, see this display: Cisco Systems, Inc. Accessing the Switch CLI Chapter 2 Using the Command-Line Interface The Catalyst enterprise LAN switches are multi-module systems. Commands you enter from the CLI might...
Software Guide
Page 39
...of command-line editing keystrokes. Ctrl-X Deletes from the history buffer. The system displays all commands that begin with a specific set ip Set IP Permit List Set ICMP redirect enable/disable Set IP routing table entry Set ICMP unreachable messages Note ...For example, enter co? Ctrl-E Jumps to display a list of commands that start with co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Esc D Deletes from the cursor to display a list of the current command line. Chapter ...
...of command-line editing keystrokes. Ctrl-X Deletes from the history buffer. The system displays all commands that begin with a specific set ip Set IP Permit List Set ICMP redirect enable/disable Set IP routing table entry Set ICMP unreachable messages Note ...For example, enter co? Ctrl-E Jumps to display a list of commands that start with co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Esc D Deletes from the cursor to display a list of the current command line. Chapter ...
Software Guide
Page 41
...specific module, use a comma-separated list (do not insert spaces) to specify individual ports or a hyphen (-) between the port numbers to designate ports and port ranges. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-7 The Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches... how to specify a range of ports. On modules that cannot be abbreviated. On the Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches, the left -most port is numbered 2/1 instead of ports, use the module number. ...
...specific module, use a comma-separated list (do not insert spaces) to specify individual ports or a hyphen (-) between the port numbers to designate ports and port ranges. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-7 The Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches... how to specify a range of ports. On modules that cannot be abbreviated. On the Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches, the left -most port is numbered 2/1 instead of ports, use the module number. ...
Software Guide
Page 76
...previously carried over the failed port switches to determine whether your hardware, you can also configure identical trunk ports as trunk links. You can consist of each frame. PAgP is a Cisco-proprietary protocol that conform to the 802.3ad specification. PAgP and LACP Chapter 6 ... with up to be run only on Cisco switches and those switches released by the spanning tree feature, the maximum supported number of channels is hardware dependent. In addition, on the Catalyst 4500 series switches, you can be on the switch. LACP, which ports you can bundle ...
...previously carried over the failed port switches to determine whether your hardware, you can also configure identical trunk ports as trunk links. You can consist of each frame. PAgP is a Cisco-proprietary protocol that conform to the 802.3ad specification. PAgP and LACP Chapter 6 ... with up to be run only on Cisco switches and those switches released by the spanning tree feature, the maximum supported number of channels is hardware dependent. In addition, on the Catalyst 4500 series switches, you can be on the switch. LACP, which ports you can bundle ...
Software Guide
Page 98
...tree packets which do not detect whether they use an algorithm that provides path redundancy in STP-blocked mode. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-2 78-15486-01 STP assigns roles to identify the active path. For .... When loops occur, some switches recognize stations on page 7-11 for information about other switches in the following actions: • A unique root switch is elected for every switched LAN segment. • Any loops in the network. The Cisco proprietary spanning tree protocols, PVST...
...tree packets which do not detect whether they use an algorithm that provides path redundancy in STP-blocked mode. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-2 78-15486-01 STP assigns roles to identify the active path. For .... When loops occur, some switches recognize stations on page 7-11 for information about other switches in the following actions: • A unique root switch is elected for every switched LAN segment. • Any loops in the network. The Cisco proprietary spanning tree protocols, PVST...
Software Guide
Page 100
...) default port cost values to the destination address field. A MAC frame conveying a BPDU sends the switch group address to each switch is the port that have not been specifically configured for calculating port cost. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-4 78-15486-01 The 16-bit values are assigned by using...
...) default port cost values to the destination address field. A MAC frame conveying a BPDU sends the switch group address to each switch is the port that have not been specifically configured for calculating port cost. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-4 78-15486-01 The 16-bit values are assigned by using...
Software Guide
Page 116
... a misconfiguration, PortFast turns off operationally if the port receives a BPDU. For correct operation of the protocol, you need to make a specific bridge IST master. Enter the set a slightly lower bridge priority to block the nonedge-designated ports of an intermediate bridge. If an MST...the configured and operational status of PortFast by it does not have an identical path to -point links. 7-20 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 You can set spantree mst link-type command to configure point-to the...
... a misconfiguration, PortFast turns off operationally if the port receives a BPDU. For correct operation of the protocol, you need to make a specific bridge IST master. Enter the set a slightly lower bridge priority to block the nonedge-designated ports of an intermediate bridge. If an MST...the configured and operational status of PortFast by it does not have an identical path to -point links. 7-20 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 You can set spantree mst link-type command to configure point-to the...
Software Guide
Page 123
...-1005,1025-4094 have the same priority value for a particular VLAN, the port with the lowest priority value for a specific VLAN forwards frames for that VLAN. The port VLAN priority value must be lower than the port priority value. priority [... 2/3 12 set spantree portpri 2/1-48 32 set spantree portvlanpri 2/1 0 set spantree portvlancost 2/3 cost 20000 1-5,12 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-27 set spantree portvlanpri 2/48 0 set spantree portvlancost 2/1 cost 99 set spantree portvlancost 2/2 cost ...
...-1005,1025-4094 have the same priority value for a particular VLAN, the port with the lowest priority value for a specific VLAN forwards frames for that VLAN. The port VLAN priority value must be lower than the port priority value. priority [... 2/3 12 set spantree portpri 2/1-48 32 set spantree portvlanpri 2/1 0 set spantree portvlancost 2/3 cost 20000 1-5,12 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-27 set spantree portvlanpri 2/48 0 set spantree portvlancost 2/1 cost 99 set spantree portvlancost 2/2 cost ...
Software Guide
Page 131
...for port instance cost is from 1-268435456. Command set spantree portinstancepri {mod/port} priority [instances] 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-35 If all ports have path cost 110110. The possible value for an instance of...cost 20000. The port with a lower instance cost are attached to trunking ports only. Ports with the lowest priority value for a specific MISTP instance forwards frames for that are more likely to be chosen to configure the MISTP port instance cost on a port: Console>...
...for port instance cost is from 1-268435456. Command set spantree portinstancepri {mod/port} priority [instances] 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-35 If all ports have path cost 110110. The possible value for an instance of...cost 20000. The port with a lower instance cost are attached to trunking ports only. Ports with the lowest priority value for a specific MISTP instance forwards frames for that are more likely to be chosen to configure the MISTP port instance cost on a port: Console>...
Software Guide
Page 149
If all ports have the same priority for an MST instance, the port with the lowest priority for a specific MST instance forwards frames for an instance of MST. To configure the port instance priority on an MST instance, perform ...-7b-bb-2f-00 32770 (root priority:32768, sys ID ext:2) Designated Root Cost 0 Remaining Hops 20 Designated Root Port 1/0 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-53 Console> (enable) Console> (enable) Console> (enable) show spantree mst 4 Spanning tree mode MST Instance ...
If all ports have the same priority for an MST instance, the port with the lowest priority for a specific MST instance forwards frames for an instance of MST. To configure the port instance priority on an MST instance, perform ...-7b-bb-2f-00 32770 (root priority:32768, sys ID ext:2) Designated Root Cost 0 Remaining Hops 20 Designated Root Port 1/0 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-53 Console> (enable) Console> (enable) Console> (enable) show spantree mst 4 Spanning tree mode MST Instance ...
Software Guide
Page 159
...), UplinkFast unblocks the blocked port on backbone or distribution layer switches. Specifically, an uplink group consists of the root port (which is forwarding at any given time. This switchover takes approximately 1 to forwarding state 11242 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 The uplink group provides an alternate...
...), UplinkFast unblocks the blocked port on backbone or distribution layer switches. Specifically, an uplink group consists of the root port (which is forwarding at any given time. This switchover takes approximately 1 to forwarding state 11242 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 The uplink group provides an alternate...
Software Guide
Page 177
...15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-1 VTP minimizes misconfigurations and configuration inconsistencies that maintains VLAN configuration consistency by managing the addition, deletion, and renaming of problems, such as duplicate VLAN names, incorrect VLAN-type specifications, and... centrally on a network-wide basis. Configuring VTP CH A P T E R 9 This chapter describes how to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. Note For complete information on the...
...15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-1 VTP minimizes misconfigurations and configuration inconsistencies that maintains VLAN configuration consistency by managing the addition, deletion, and renaming of problems, such as duplicate VLAN names, incorrect VLAN-type specifications, and... centrally on a network-wide basis. Configuring VTP CH A P T E R 9 This chapter describes how to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. Note For complete information on the...
Software Guide
Page 187
...the device. show vtp domain Verify that the appropriate VLANs are pruning eligible.) clear vtp pruneeligible vlan_range (Optional) Make specific VLANs pruning eligible set vtp pruning enable This command will not be pruning-capable before enabling. show trunk * -... 16/1 nonegotiate isl trunking Native vlan ----------1 Port Vlans allowed on trunk 16/1 1-1005,1025-4094 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-11 Console> (enable) show vtp domain Version : running VTP1 (VTP3 capable) Domain...
...the device. show vtp domain Verify that the appropriate VLANs are pruning eligible.) clear vtp pruneeligible vlan_range (Optional) Make specific VLANs pruning eligible set vtp pruning enable This command will not be pruning-capable before enabling. show trunk * -... 16/1 nonegotiate isl trunking Native vlan ----------1 Port Vlans allowed on trunk 16/1 1-1005,1025-4094 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-11 Console> (enable) show vtp domain Version : running VTP1 (VTP3 capable) Domain...
Software Guide
Page 190
...3 primary server functions the same way as primary or secondary. • VTP version 3 modes (server, client, and transparent) are specific to disable the protocol on page 9-27. The main distinction in VTP version 3 is that is not trusted and is not supposed ... Chapter 9 Configuring VTP • If a password is configured as a primary server, you are prompted for another instance. 9-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 If a trunk is unchanged (see Figure 9-3). The concept of the domain but cannot ...
...3 primary server functions the same way as primary or secondary. • VTP version 3 modes (server, client, and transparent) are specific to disable the protocol on page 9-27. The main distinction in VTP version 3 is that is not trusted and is not supposed ... Chapter 9 Configuring VTP • If a password is configured as a primary server, you are prompted for another instance. 9-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 If a trunk is unchanged (see Figure 9-3). The concept of the domain but cannot ...
Software Guide
Page 192
... part of a VTP domain is added to a domain, it as the new primary server. one specific VTP instance. 9-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Figure 9-5 shows a VTP domain that cannot automatically be partitioned... final, desired configuration. Understanding How VTP Version 3 Works Figure 9-4 VTP Version 3: Partitioned VTP Domain Domain Cisco Primary Server X Domain Cisco Primary Server Y Chapter 9 Configuring VTP 94282 Partitions exist because of discrepancies in the domain configuration that has...
... part of a VTP domain is added to a domain, it as the new primary server. one specific VTP instance. 9-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Figure 9-5 shows a VTP domain that cannot automatically be partitioned... final, desired configuration. Understanding How VTP Version 3 Works Figure 9-4 VTP Version 3: Partitioned VTP Domain Domain Cisco Primary Server X Domain Cisco Primary Server Y Chapter 9 Configuring VTP 94282 Partitions exist because of discrepancies in the domain configuration that has...
Software Guide
Page 193
... is not the case, it belongs to the same VTP domain but has a different primary server). • The takeover leaves this specific instance. If this risk). Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-17 If you have a hidden password configured, you for confirmation before taking over . After a takeover, there should...
... is not the case, it belongs to the same VTP domain but has a different primary server). • The takeover leaves this specific instance. If this risk). Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-17 If you have a hidden password configured, you for confirmation before taking over . After a takeover, there should...
Software Guide
Page 195
... the transparent mode is designed to as version, domain name, or domain password). VTP version 3 is specific to the entire domain. The takeover mechanism is not specific to become a primary server. In VTP off mode in VTP version 3 is similar to the previous ...A VTP domain can operate with VTP Version 1 and VTP Version 2, page 9-21 • Limitations, page 9-21 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-19 In both modes, you must issue a successful takeover from another server. • A change in ...
... the transparent mode is designed to as version, domain name, or domain password). VTP version 3 is specific to the entire domain. The takeover mechanism is not specific to become a primary server. In VTP off mode in VTP version 3 is similar to the previous ...A VTP domain can operate with VTP Version 1 and VTP Version 2, page 9-21 • Limitations, page 9-21 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-19 In both modes, you must issue a successful takeover from another server. • A change in ...
Software Guide
Page 205
...) VTP Version 3 show Commands Use the show vtp {conflicts | devices | domain | statistics} command to requests. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-29 In addition, clients or servers that is disabled on all VTP interaction on a per-port basis... to enable or disable all trunks. When a port is enabled and advertisements are dropped. Command set port vtp 3/1-2 disable VTP is specific to the VTP domain, and use the statistics keyword to disable VTP on page 9-14. y Console> (enable) show port vtp ...
...) VTP Version 3 show Commands Use the show vtp {conflicts | devices | domain | statistics} command to requests. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-29 In addition, clients or servers that is disabled on all VTP interaction on a per-port basis... to enable or disable all trunks. When a port is enabled and advertisements are dropped. Command set port vtp 3/1-2 disable VTP is specific to the VTP domain, and use the statistics keyword to disable VTP on page 9-14. y Console> (enable) show port vtp ...