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... certain other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright © 2000-2003, Cisco Systems, Inc. All rights reserved. IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL ...CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. All other trademarks mentioned in the U.S. THE SPECIFICATIONS AND INFORMATION...
... certain other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright © 2000-2003, Cisco Systems, Inc. All rights reserved. IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL ...CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. All other trademarks mentioned in the U.S. THE SPECIFICATIONS AND INFORMATION...
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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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... this display: Cisco Systems, Inc. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-2 78-15486-01 Use clear commands (or in some cases, use normal-mode commands to monitor the switch or enter privileged mode to change switch parameters. Enter ... set commands) to the switch through the console port, you can access the CLI through the supervisor engine console port or through a Telnet session. To access the switch CLI through the console port, follow these steps: Step 1 Step 2 Connect to a specific module, port, or VLAN...
... this display: Cisco Systems, Inc. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-2 78-15486-01 Use clear commands (or in some cases, use normal-mode commands to monitor the switch or enter privileged mode to change switch parameters. Enter ... set commands) to the switch through the console port, you can access the CLI through the supervisor engine console port or through a Telnet session. To access the switch CLI through the console port, follow these steps: Step 1 Step 2 Connect to a specific module, port, or VLAN...
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...Backspace key Erases characters on ANSI-compatible terminals, such as follows: Console> (enable) co? To use when entering and editing switch commands. Ctrl-L; Enters previous command line from the history buffer. Do not insert a space between TFTP/RCP/module/flash devices Note... 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Ctrl-D Deletes the character at the privileged prompt to display a list of commands that begin with a specific set ip Set IP Permit List Set ICMP redirect enable/disable...
...Backspace key Erases characters on ANSI-compatible terminals, such as follows: Console> (enable) co? To use when entering and editing switch commands. Ctrl-L; Enters previous command line from the history buffer. Do not insert a space between TFTP/RCP/module/flash devices Note... 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Ctrl-D Deletes the character at the privileged prompt to display a list of commands that begin with a specific set ip Set IP Permit List Set ICMP redirect enable/disable...
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...commands on module 2. To specify a range of ports. Table 2-3 lists the switch CLI aliases that have two logical modules. Table 2-3 Command Aliases That Cannot Be Abbreviated Alias ? To designate a specific module, use a comma-separated list (do not insert spaces) to specify individual... 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-7 also, some aliases cannot be abbreviated. For example, 3/1 specifies module 3, port 1. To designate a specific port on module 2. batch di exit logout Command help configure ...
...commands on module 2. To specify a range of ports. Table 2-3 lists the switch CLI aliases that have two logical modules. Table 2-3 Command Aliases That Cannot Be Abbreviated Alias ? To designate a specific module, use a comma-separated list (do not insert spaces) to specify individual... 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-7 also, some aliases cannot be abbreviated. For example, 3/1 specifies module 3, port 1. To designate a specific port on module 2. batch di exit logout Command help configure ...
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... with up to eight ports. In addition, on the Catalyst 4500 series switches, you can configure any two to eight compatibly configured Fast or Gigabit Ethernet ports on Cisco switches and those switches released by the spanning tree feature, the maximum supported number of each frame...the show port capabilities command to the 802.3ad specification. Depending on your hardware supports EtherChannel, and to confirm which is a Cisco-proprietary protocol that conform to determine whether your hardware, you can be run only on the switch. PAgP is defined in the channel. To ...
... with up to eight ports. In addition, on the Catalyst 4500 series switches, you can configure any two to eight compatibly configured Fast or Gigabit Ethernet ports on Cisco switches and those switches released by the spanning tree feature, the maximum supported number of each frame...the show port capabilities command to the 802.3ad specification. Depending on your hardware supports EtherChannel, and to confirm which is a Cisco-proprietary protocol that conform to determine whether your hardware, you can be run only on the switch. PAgP is defined in the channel. To ...
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Understanding How STPs Work Chapter 7 Configuring Spanning Tree Understanding How STPs Work This section describes the specific functions that are placed in the active topology. The Cisco proprietary spanning tree protocols, PVST+ and MISTP, are based on the IEEE 802.1D STP. (See the... an alternate path to be forwarded. Spanning tree operation is in STP-blocked mode. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-2 78-15486-01 Spanning tree algorithms provide path redundancy by defining a tree that selects one bridge ...
Understanding How STPs Work Chapter 7 Configuring Spanning Tree Understanding How STPs Work This section describes the specific functions that are placed in the active topology. The Cisco proprietary spanning tree protocols, PVST+ and MISTP, are based on the IEEE 802.1D STP. (See the... an alternate path to be forwarded. Spanning tree operation is in STP-blocked mode. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-2 78-15486-01 Spanning tree algorithms provide path redundancy by defining a tree that selects one bridge ...
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... the Port Cost Using the Short Method The IEEE 802.1D specification assigns 16-bit (short) default port cost values to the root switch. • Ports included in the following: • One switch is elected as the root switch. • The shortest distance to transmit data. Catalyst 4500 Series... on bandwidth. The long method uses a 32-bit format that yields values from the switch to each port that is the port that have not been specifically configured for each switch. • A designated switch is used for calculating port cost. The short method (default) will be used to...
... the Port Cost Using the Short Method The IEEE 802.1D specification assigns 16-bit (short) default port cost values to the root switch. • Ports included in the following: • One switch is elected as the root switch. • The shortest distance to transmit data. Catalyst 4500 Series... on bandwidth. The long method uses a 32-bit format that yields values from the switch to each port that is the port that have not been specifically configured for each switch. • A designated switch is used for calculating port cost. The short method (default) will be used to...
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... after a failure, you must explicitly configure the ports that port is up. Otherwise, the port requires twice the forward delay time to make a specific bridge IST master. If an MST bridge is the root bridge for a port is displayed as the link is also a PortFast port. If two...is the bridge with the lowest bridge identifier and the least path cost to -point links. 7-20 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Note To configure a port as edge ports while using the show spantree portfast mod/port command, ...
... after a failure, you must explicitly configure the ports that port is up. Otherwise, the port requires twice the forward delay time to make a specific bridge IST master. If an MST bridge is the root bridge for a port is displayed as the link is also a PortFast port. If two...is the bridge with the lowest bridge identifier and the least path cost to -point links. 7-20 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Note To configure a port as edge ports while using the show spantree portfast mod/port command, ...
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...VLAN priority for a VLAN on 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 priority [vlans] Verify the port VLAN priority. show config all . . . Port 2/3 vlans...set spantree portvlanpri mod_num/port_num a switch port. This parameter applies to trunking ports only. Console> (enable) 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 priority for a VLAN on 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 priority [vlans] Verify the port VLAN priority. show config all . . . Port 2/3 vlans...set spantree portvlanpri mod_num/port_num a switch port. This parameter applies to trunking ports only. Console> (enable) 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 ...
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... Port 1/1 instances 2 have the same priority value for an MISTP instance, the port with the lowest priority value for a specific MISTP instance forwards frames for that instance. The port with the lowest port number forwards frames for that instance. If all ports... path cost 20000. 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 This parameter applies to forward frames. Chapter 7 Configuring Spanning Tree Using MISTP-PVST+ or MISTP Bridge ...
... Port 1/1 instances 2 have the same priority value for an MISTP instance, the port with the lowest priority value for a specific MISTP instance forwards frames for that instance. The port with the lowest port number forwards frames for that instance. If all ports... path cost 20000. 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 This parameter applies to forward frames. Chapter 7 Configuring Spanning Tree Using MISTP-PVST+ or MISTP Bridge ...
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... 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 forwards frames for that instance. Command set a port priority for an instance of MST. Verify the port instance priority setting. Port 6/1 MST ...(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 The port instance range is from 0-63.
... 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 forwards frames for that instance. Command set a port priority for an instance of MST. Verify the port instance priority setting. Port 6/1 MST ...(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 The port instance range is from 0-63.
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... states (as shown in wiring-closet switches that is forwarding) and a set of ports (per VLAN), only one of blocked ports (not including self-looped ports). This switchover takes approximately 1 to Switch B over link L2. Specifically, an uplink group consists of the ...root port (which is most useful in Figure 8-2). Figure 8-1 UplinkFast Example Before Direct Link Failure Switch A (Root) Switch B L1 L2 L3 Blocked port 11241 Switch C If Switch C detects a link failure on...
... states (as shown in wiring-closet switches that is forwarding) and a set of ports (per VLAN), only one of blocked ports (not including self-looped ports). This switchover takes approximately 1 to Switch B over link L2. Specifically, an uplink group consists of the ...root port (which is most useful in Figure 8-2). Figure 8-1 UplinkFast Example Before Direct Link Failure Switch A (Root) Switch B L1 L2 L3 Blocked port 11241 Switch C If Switch C detects a link failure on...
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...chapter, refer to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. This chapter consists of problems, such as duplicate VLAN names, incorrect VLAN-type specifications, and security violations. Note For complete syntax and usage information for the commands... How VTP Version 1 and Version 2 Work VTP is a Layer 2 messaging protocol that can make configuration changes centrally on one switch and have those changes automatically communicated to configure the VLAN Trunking Protocol (VTP) on configuring VLANs, see Chapter 10, "Configuring VLANs...
...chapter, refer to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. This chapter consists of problems, such as duplicate VLAN names, incorrect VLAN-type specifications, and security violations. Note For complete syntax and usage information for the commands... How VTP Version 1 and Version 2 Work VTP is a Layer 2 messaging protocol that can make configuration changes centrally on one switch and have those changes automatically communicated to configure the VLAN Trunking Protocol (VTP) on configuring VLANs, see Chapter 10, "Configuring VLANs...
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...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) set vtp pruning enable Cannot modify pruning mode unless in the management domain and... Task Command Enable VTP pruning in the management domain should be pruned on this device. set vtp pruning enable (Optional) Make specific VLANs pruning ineligible on the device. (By default, VLANs 2-1000 are being pruned on trunk ports. Verify the VTP pruning configuration.
...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) set vtp pruning enable Cannot modify pruning mode unless in the management domain and... Task Command Enable VTP pruning in the management domain should be pruned on this device. set vtp pruning enable (Optional) Make specific VLANs pruning ineligible on the device. (By default, VLANs 2-1000 are being pruned on trunk ports. Verify the VTP pruning configuration.
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...configuration. - If your password matches the secret password, the switch becomes a primary server allowing you try to configure the switch as primary or secondary. • VTP version 3 modes (server, client, and transparent) are specific to be partitioned. VTP Version 3 Per-Port Configuration Note ... Configuring VTP • If a password is configured as VTP version 1 and VTP version 2 servers. VTP version 3 allows you are specific to drop incoming VTP packets and prevent VTP advertisements on page 9-29. This configuration option has no impact on a per -port configuration ...
...configuration. - If your password matches the secret password, the switch becomes a primary server allowing you try to configure the switch as primary or secondary. • VTP version 3 modes (server, client, and transparent) are specific to be partitioned. VTP Version 3 Per-Port Configuration Note ... Configuring VTP • If a password is configured as VTP version 1 and VTP version 2 servers. VTP version 3 allows you are specific to drop incoming VTP packets and prevent VTP advertisements on page 9-29. This configuration option has no impact on a per -port configuration ...
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... mechanism to remove any partitions because the protocol cannot determine which primary server has the final, desired configuration. If a new switch is specific to the instance; Figure 9-5 shows a VTP domain that cannot automatically be partitioned. Reconfiguring a Partitioned VTP Domain Partitioning of ... for one instance may be partitioned while another might not be resolved by VTP. one specific VTP instance. 9-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Understanding How VTP Version 3 Works Figure 9-4...
... mechanism to remove any partitions because the protocol cannot determine which primary server has the final, desired configuration. If a new switch is specific to the instance; Figure 9-5 shows a VTP domain that cannot automatically be partitioned. Reconfiguring a Partitioned VTP Domain Partitioning of ... for one instance may be partitioned while another might not be resolved by VTP. one specific VTP instance. 9-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Understanding How VTP Version 3 Works Figure 9-4...
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... Z 94283 78-15486-01 Partition X In Figure 9-5, server X has the correct configuration for a particular instance. Therefore, all the switches with conflicting configurations (when you enter the show vtp conflicts command) and prompts you need to reenter the password to take over (a... 9-28. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-17 VTP lists all switches in the domain will synchronize their VTP configuration to reduce this specific instance. Switches refuse the takeover request if they are initiated by issuing ...
... Z 94283 78-15486-01 Partition X In Figure 9-5, server X has the correct configuration for a particular instance. Therefore, all the switches with conflicting configurations (when you enter the show vtp conflicts command) and prompts you need to reenter the password to take over (a... 9-28. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-17 VTP lists all switches in the domain will synchronize their VTP configuration to reduce this specific instance. Switches refuse the takeover request if they are initiated by issuing ...
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...is transparent to the feature. In VTP transparent mode, all NVRAM handling for the feature happens through VTP whether or not the switch is designed to distribute any instance needs to VLAN information. Note In software release 8.1(1), the only supported database propagation is exited due... domain can issue a takeover to an instance. This feature configuration will also appear in the same NVRAM block that there is not specific to become a primary server. The feature stores its local configuration in the running configuration (if applicable). You only need the primary ...
...is transparent to the feature. In VTP transparent mode, all NVRAM handling for the feature happens through VTP whether or not the switch is designed to distribute any instance needs to VLAN information. Note In software release 8.1(1), the only supported database propagation is exited due... domain can issue a takeover to an instance. This feature configuration will also appear in the same NVRAM block that there is not specific to become a primary server. The feature stores its local configuration in the running configuration (if applicable). You only need the primary ...
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...(enable) VTP Version 3 show Commands Use the show port vtp 3 Port VTP Status 3/1 disabled 3/2 disabled 3/3 enabled 3/4 enabled . . . Switches in the domain with conflicting (conflicts) configurations. This capability might be used on trunks leading to requests. Console> (enable) show vtp {conflicts |...VTP is disabled on ports 3/1-2. By default, VTP is specific to the VTP domain, and use the statistics keyword 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 ...
...(enable) VTP Version 3 show Commands Use the show port vtp 3 Port VTP Status 3/1 disabled 3/2 disabled 3/3 enabled 3/4 enabled . . . Switches in the domain with conflicting (conflicts) configurations. This capability might be used on trunks leading to requests. Console> (enable) show vtp {conflicts |...VTP is disabled on ports 3/1-2. By default, VTP is specific to the VTP domain, and use the statistics keyword 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 ...