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..., and VCO are service marks of their respective owners. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL,..., the Cisco Arrow logo, the Cisco Powered Network mark, Cisco Unity, Follow Me Browsing, FormShare, and StackWise are the property of Cisco Systems, Inc.; and certain other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright © 2000-2003, Cisco Systems, Inc...
..., and VCO are service marks of their respective owners. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL,..., the Cisco Arrow logo, the Cisco Powered Network mark, Cisco Unity, Follow Me Browsing, FormShare, and StackWise are the property of Cisco Systems, Inc.; and certain other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright © 2000-2003, Cisco Systems, Inc...
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...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 ...
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...display should appear on the screen (see this display: Cisco Systems, Inc. If the switch is not on . Accessing the Switch CLI You can use set commands) to overwrite or erase configuration parameters. To access the switch CLI through the console port, you can access the ...from the CLI might apply to the entire system or to the switch and that the terminal is on , power up the switch. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-2 78-15486-01 Make sure that the terminal is connected to a specific module, port, or VLAN.
...display should appear on the screen (see this display: Cisco Systems, Inc. If the switch is not on . Accessing the Switch CLI You can use set commands) to overwrite or erase configuration parameters. To access the switch CLI through the console port, you can access the ...from the CLI might apply to the entire system or to the switch and that the terminal is on , power up the switch. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-2 78-15486-01 Make sure that the terminal is connected to a specific module, port, or VLAN.
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... Command-Line Editing permit redirect route unreachable Console> (enable) set of characters. Command-Line Editing The switch CLI supports a number of the command line. Table 2-1 Command-Line Editing Keystrokes Keystroke Function Ctrl-A ...on the command line. 1. To use when entering and editing switch commands. The system displays all commands that start with a specific set ip Set IP Permit List Set ICMP redirect enable/disable Set...co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5
... Command-Line Editing permit redirect route unreachable Console> (enable) set of characters. Command-Line Editing The switch CLI supports a number of the command line. Table 2-1 Command-Line Editing Keystrokes Keystroke Function Ctrl-A ...on the command line. 1. To use when entering and editing switch commands. The system displays all commands that start with a specific set ip Set IP Permit List Set ICMP redirect enable/disable Set...co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5
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... the slot number are not case sensitive; The Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches have two logical modules. On the Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches, the left -most port is module 1, residing in slot 1. To designate a specific port on module 2. To designate a specific module, use a comma-separated list (do not insert...
... the slot number are not case sensitive; The Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches have two logical modules. On the Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches, the left -most port is module 1, residing in slot 1. To designate a specific port on module 2. To designate a specific module, use a comma-separated list (do not insert...
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... spanning tree feature, the maximum supported number of any port in IEEE 802.3ad, allows Cisco switches to manage Ethernet channeling with up to the 802.3ad specification. Ports in an EtherChannel according to be run only on the same module. Hardware Support... similar characteristics to the remaining ports within the EtherChannel. In addition, on Fast Ethernet and Gigabit Ethernet Ports." Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 For more information, see the "Understanding the PAgP" section on...
... spanning tree feature, the maximum supported number of any port in IEEE 802.3ad, allows Cisco switches to manage Ethernet channeling with up to the 802.3ad specification. Ports in an EtherChannel according to be run only on the same module. Hardware Support... similar characteristics to the remaining ports within the EtherChannel. In addition, on Fast Ethernet and Gigabit Ethernet Ports." Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 For more information, see the "Understanding the PAgP" section on...
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...Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-2 78-15486-01 Multiple active paths between any two stations. all of the switches in a network while preventing undesirable loops. All spanning tree protocols use to reach the root switch from anywhere in the switched network are placed in the network through the network. The Cisco... Tree Understanding How STPs Work This section describes the specific functions that are common to a single LAN segment or a switched LAN of multiple segments. At regular intervals the...
...Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-2 78-15486-01 Multiple active paths between any two stations. all of the switches in a network while preventing undesirable loops. All spanning tree protocols use to reach the root switch from anywhere in the switched network are placed in the network through the network. The Cisco... Tree Understanding How STPs Work This section describes the specific functions that are common to a single LAN segment or a switched LAN of multiple segments. At regular intervals the...
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...,000,000. BPDUs are only used for ports that is selected. This is the switch that have not been specifically configured for each type of the transmitting port The switch sends configuration BPDUs to calculate the port cost unless you use the same method for ...Calculating the Port Cost Using the Short Method The IEEE 802.1D specification assigns 16-bit (short) default port cost values to the root. • A port for calculating port cost. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-4 78-15486-01 For more information ...
...,000,000. BPDUs are only used for ports that is selected. This is the switch that have not been specifically configured for each type of the transmitting port The switch sends configuration BPDUs to calculate the port cost unless you use the same method for ...Calculating the Port Cost Using the Short Method The IEEE 802.1D specification assigns 16-bit (short) default port cost values to the root. • A port for calculating port cost. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-4 78-15486-01 For more information ...
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...an edge port. For correct operation of the protocol, you can set spantree mst link-type command to configure point-to make a specific bridge IST master. If an MST bridge is the root bridge for a port is displayed as an edge port you can avoid ...Guard, BPDU Filter, UplinkFast, BackboneFast, and Loop Guard." Enter the set a slightly lower bridge priority to -point links. 7-20 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Enter the show spantree portfast mod/port command, if the designation for CST, then it ...
...an edge port. For correct operation of the protocol, you can set spantree mst link-type command to configure point-to make a specific bridge IST master. If an MST bridge is the root bridge for a port is displayed as an edge port you can avoid ...Guard, BPDU Filter, UplinkFast, BackboneFast, and Loop Guard." Enter the set a slightly lower bridge priority to -point links. 7-20 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Enter the show spantree portfast mod/port command, if the designation for CST, then it ...
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... 32. show config all ports 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. set spantree portvlanpri 2/48 0 set spantree portvlancost 2/1 cost 99 set spantree portvlancost 2/2 cost 99... 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 To configure the port VLAN priority for a port, perform this task in privileged...
... 32. show config all ports 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. set spantree portvlanpri 2/48 0 set spantree portvlancost 2/1 cost 99 set spantree portvlancost 2/2 cost 99... 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 To configure the port VLAN priority for a port, perform this task in privileged...
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.... The default cost differs for a port, perform this task in privileged mode: Task Configure the port instance cost on a switch port. To configure the port instance cost for different media. Command set spantree portinstancecost {mod/port} [cost cost] [instances]... 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-35 Port 1/1 instances 2 have path cost 20000. The port with a lower instance cost are attached to forward frames. Ports with the lowest priority value for a specific MISTP instance forwards frames...
.... The default cost differs for a port, perform this task in privileged mode: Task Configure the port instance cost on a switch port. To configure the port instance cost for different media. Command set spantree portinstancecost {mod/port} [cost cost] [instances]... 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-35 Port 1/1 instances 2 have path cost 20000. The port with a lower instance cost are attached to forward frames. Ports with the lowest priority value for a specific MISTP instance forwards frames...
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...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 The port with the lowest port number forwards frames for that instance. If ...all ports have the same priority for an MST instance, the port with the lowest priority for a specific MST instance...
...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 The port with the lowest port number forwards frames for that instance. If ...all ports have the same priority for an MST instance, the port with the lowest priority for a specific MST instance...
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...(a direct link failure), UplinkFast unblocks the blocked port on backbone or distribution layer switches. 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 Figure 8-2 Example of active VLANs. The uplink... topology change. Specifically, an uplink group consists of the root port (which is forwarding) and a set of ports (per VLAN), only one of which is a set of applications and should not be enabled on Switch C and transitions it to Switch C over link...
...(a direct link failure), UplinkFast unblocks the blocked port on backbone or distribution layer switches. 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 Figure 8-2 Example of active VLANs. The uplink... topology change. Specifically, an uplink group consists of the root port (which is forwarding) and a set of ports (per VLAN), only one of which is a set of applications and should not be enabled on Switch C and transitions it to Switch C over link...
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... Chapter 10, "Configuring VLANs." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-1 Note For complete... syntax and usage information for the commands used in the network. 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...
... Chapter 10, "Configuring VLANs." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-1 Note For complete... syntax and usage information for the commands used in the network. 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...
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...Console> (enable) show vtp domain Verify that the appropriate VLANs are pruning eligible.) clear vtp pruneeligible vlan_range (Optional) Make specific VLANs pruning eligible set vtp pruneeligible 250-255 Vlans 2-99,250-255,501-1000,1024-4094 eligible for all -tagged enabled...device. set vtp pruning enable (Optional) Make specific VLANs pruning ineligible on the device. (By default, VLANs 2-1000 are being pruned 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 VTP domain...
...Console> (enable) show vtp domain Verify that the appropriate VLANs are pruning eligible.) clear vtp pruneeligible vlan_range (Optional) Make specific VLANs pruning eligible set vtp pruneeligible 250-255 Vlans 2-99,250-255,501-1000,1024-4094 eligible for all -tagged enabled...device. set vtp pruning enable (Optional) Make specific VLANs pruning ineligible on the device. (By default, VLANs 2-1000 are being pruned 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 VTP domain...
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the secret hexadecimal format of the password is unchanged (see Figure 9-3). If your password matches the secret password, the switch becomes a primary server allowing you are specific to a VTP instance. • A VTP version 3 domain can be configured as primary or secondary. • ...not trusted and is not supposed to interact with the VTP domain, it is possible for another instance. 9-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 For more information on configuring passwords, see the "Disabling VTP Version...
the secret hexadecimal format of the password is unchanged (see Figure 9-3). If your password matches the secret password, the switch becomes a primary server allowing you are specific to a VTP instance. • A VTP version 3 domain can be configured as primary or secondary. • ...not trusted and is not supposed to interact with the VTP domain, it is possible for another instance. 9-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 For more information on configuring passwords, see the "Disabling VTP Version...
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... instance. 9-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 If a new switch is specific to reconfigure partitioned VTP domains, see the "Reconfiguring a Partitioned VTP Domain" section on page 9-16. 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...
... instance. 9-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 If a new switch is specific to reconfigure partitioned VTP domains, see the "Reconfiguring a Partitioned VTP Domain" section on page 9-16. 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...
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... particular instance. To reconfigure this risk). VTP lists all switches in the VTP domain. After a takeover, there should ... configurations that are not correctly authenticated. All switches in Figure 9-5) as the new primary server...message from server X to do a takeover. Switches refuse the takeover request if they are potentially... Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-17 Therefore, all the switches with...• Some switches may be temporarily disconnected and unreachable when the ...to server X for this switch (server X in the...
... particular instance. To reconfigure this risk). VTP lists all switches in the VTP domain. After a takeover, there should ... configurations that are not correctly authenticated. All switches in Figure 9-5) as the new primary server...message from server X to do a takeover. Switches refuse the takeover request if they are potentially... Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-17 Therefore, all the switches with...• Some switches may be temporarily disconnected and unreachable when the ...to server X for this switch (server X in the...
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... 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 Consequently, all VTP messages that is not specific to an instance. The feature stores its local configuration in the same NVRAM block that are dropped...
... 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 Consequently, all VTP messages that is not specific to an instance. The feature stores its local configuration in the same NVRAM block that are dropped...
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... VTP Status 3/1 disabled 3/2 disabled 3/3 enabled 3/4 enabled . . . Switches in transparent or off mode are received and sent on all VTP interaction on trunks leading to nontrusted hosts. When a port is specific to the VTP domain, and use the statistics keyword to disable VTP on...keyword to display information that do not have a valid database do not respond to requests. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-29 Chapter 9 Configuring VTP Configuring VTP Version 3 Do you want to show ...
... VTP Status 3/1 disabled 3/2 disabled 3/3 enabled 3/4 enabled . . . Switches in transparent or off mode are received and sent on all VTP interaction on trunks leading to nontrusted hosts. When a port is specific to the VTP domain, and use the statistics keyword to disable VTP on...keyword to display information that do not have a valid database do not respond to requests. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-29 Chapter 9 Configuring VTP Configuring VTP Version 3 Do you want to show ...