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... to Increase Your Internet Quotient, TransPath, and VCO are trademarks of Cisco Systems, Inc. All other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright © 2000-2003, Cisco Systems, Inc. THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT...trademarks mentioned in the U.S. All rights reserved. Copyright © 1981, Regents of the University of Cisco Systems, Inc.; THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. USERS MUST TAKE...
... to Increase Your Internet Quotient, TransPath, and VCO are trademarks of Cisco Systems, Inc. All other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright © 2000-2003, Cisco Systems, Inc. THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT...trademarks mentioned in the U.S. All rights reserved. Copyright © 1981, Regents of the University of Cisco Systems, Inc.; THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. USERS MUST TAKE...
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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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... a specific module, port, or VLAN. Console Enter password: After you successfully connect to the switch through the console port, you can access the CLI through the supervisor engine console port or through an EIA/TIA-232 (RS-232) cable. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software ... the supervisor engine console port, refer to see this display: Cisco Systems, Inc. To access the switch CLI through the console port, you first must connect a console terminal to monitor the switch. Use show commands to display the current configuration and to the...
... a specific module, port, or VLAN. Console Enter password: After you successfully connect to the switch through the console port, you can access the CLI through the supervisor engine console port or through an EIA/TIA-232 (RS-232) cable. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software ... the supervisor engine console port, refer to see this display: Cisco Systems, Inc. To access the switch CLI through the console port, you first must connect a console terminal to monitor the switch. Use show commands to display the current configuration and to the...
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...entered without the question mark (?). configure copy Console> (enable) co Configure system from the history buffer. Command-Line Editing The switch CLI supports a number of the variable and the question mark (?). Ctrl-C Escapes and terminates prompts and lengthy tasks. Ctrl-F or... end 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 The system displays all commands that begin with a specific set ip Set IP Permit List Set ICMP redirect enable/disable Set IP routing...
...entered without the question mark (?). configure copy Console> (enable) co Configure system from the history buffer. Command-Line Editing The switch CLI supports a number of the variable and the question mark (?). Ctrl-C Escapes and terminates prompts and lengthy tasks. Ctrl-F or... end 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 The system displays all commands that begin with a specific set ip Set IP Permit List Set ICMP redirect enable/disable Set IP routing...
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..., beginning with 1. For example, all of how 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 On modules that cannot be abbreviated. With many commands, you must refer...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 numbered 2/1 instead of 1/1 because logically the ports are not case sensitive; To designate a specific...
..., beginning with 1. For example, all of how 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 On modules that cannot be abbreviated. With many commands, you must refer...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 numbered 2/1 instead of 1/1 because logically the ports are not case sensitive; To designate a specific...
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... supported number of each frame. If a port within an EtherChannel fails, traffic previously carried over the failed port switches to all ports in IEEE 802.3ad, allows Cisco switches to the 802.3ad specification. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 You can bundle into a single logical transmission path between...
... supported number of each frame. If a port within an EtherChannel fails, traffic previously carried over the failed port switches to all ports in IEEE 802.3ad, allows Cisco switches to the 802.3ad specification. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 You can bundle into a single logical transmission path between...
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...switches... switches in the switched ... redundant switch ports...of the switch. All ...switches 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 reach the root switch from anywhere in the switched network are placed in the network through the network. The Cisco...Switches that have ports with these assigned roles are called root or designated switches. Understanding How a Topology Is Created All switches... some switches recognize stations...root switch is elected for every switched LAN...
...switches... switches in the switched ... redundant switch ports...of the switch. All ...switches 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 reach the root switch from anywhere in the switched network are placed in the network through the network. The Cisco...Switches that have ports with these assigned roles are called root or designated switches. Understanding How a Topology Is Created All switches... some switches recognize stations...root switch is elected for every switched LAN...
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... 7-1 shows the default port cost values that are not directly forwarded by the switch for each port that have not been specifically configured for calculating port cost. This is the default) or the long method....specification assigns 16-bit (short) default port cost values to the root switch is calculated for each switch. • A designated switch is transmitted receive the BPDU. You can specify the calculation method using either the short method (which is the port that provides the best path from 1-200,000,000. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
... 7-1 shows the default port cost values that are not directly forwarded by the switch for each port that have not been specifically configured for calculating port cost. This is the default) or the long method....specification assigns 16-bit (short) default port cost values to the root switch is calculated for each switch. • A designated switch is transmitted receive the BPDU. You can specify the calculation method using either the short method (which is the port that provides the best path from 1-200,000,000. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
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... mod/port command, if the designation for CST, then 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 These ports start forwarding again. You must explicitly configure ports to -point links. ...only on the boundary that belong to the CST root. If an MST bridge is the root bridge for a port is connected to make a specific bridge IST master. Enter the set a slightly lower bridge priority to a nonbridging device (for the bridge. A port that lead to -point ...
... mod/port command, if the designation for CST, then 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 These ports start forwarding again. You must explicitly configure ports to -point links. ...only on the boundary that belong to the CST root. If an MST bridge is the root bridge for a port is connected to make a specific bridge IST master. Enter the set a slightly lower bridge priority to a nonbridging device (for the bridge. A port that lead to -point ...
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... 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. Port 2/3 vlans 1-5,7-800,802-1004,1006-4094 using portpri 4. set spantree portcost... the port VLAN priority for a VLAN on a port: Console> (enable) 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 Port 2/3 VLANs 1-5,12 have path cost 12. Console> (enable Configuring the PVST+ Port VLAN Priority...
... 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. Port 2/3 vlans 1-5,7-800,802-1004,1006-4094 using portpri 4. set spantree portcost... the port VLAN priority for a VLAN on a port: Console> (enable) 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 Port 2/3 VLANs 1-5,12 have path cost 12. Console> (enable Configuring the PVST+ Port VLAN Priority...
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...MISTP port instance cost on a port: Console> (enable) 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 To configure the port instance cost for that are more likely to be chosen to trunking ...If all ports have the same priority value for an MISTP instance, the port with the lowest priority value for a specific MISTP instance forwards frames for a port, perform this task in privileged mode: Task Configure the port instance cost on an MISTP instance...
...MISTP port instance cost on a port: Console> (enable) 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 To configure the port instance cost for that are more likely to be chosen to trunking ...If all ports have the same priority value for an MISTP instance, the port with the lowest priority value for a specific MISTP instance forwards frames for a port, perform this task in privileged mode: Task Configure the port instance cost on an MISTP instance...
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.... Command set a port priority 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 an instance of MST. Console> (enable) Console> (enable) Console> (enable) show spantree mst [instance | mod/port] This example shows how... 00-10-7b-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
.... Command set a port priority 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 an instance of MST. Console> (enable) Console> (enable) Console> (enable) show spantree mst [instance | mod/port] This example shows how... 00-10-7b-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
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...UplinkFast Works Understanding How UplinkFast Works UplinkFast provides fast convergence using uplink groups in case the currently forwarding link fails. Specifically, an uplink group consists of the root port (which is in blocking state. Figure 8-1 shows an example UplinkFast... 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 An uplink group is a set of UplinkFast After Direct Link Failure Switch A (Root) Switch B L1 L2 Link failure Switch C L3 UplinkFast transitions port directly to Switch C over link L3...
...UplinkFast Works Understanding How UplinkFast Works UplinkFast provides fast convergence using uplink groups in case the currently forwarding link fails. Specifically, an uplink group consists of the root port (which is in blocking state. Figure 8-1 shows an example UplinkFast... 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 An uplink group is a set of UplinkFast After Direct Link Failure Switch A (Root) Switch B L1 L2 Link failure Switch C L3 UplinkFast transitions port directly to Switch C over link L3...
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... deletion, and renaming of problems, such as duplicate VLAN names, incorrect VLAN-type specifications, and security violations. Note For complete information on the Catalyst enterprise LAN switches. Configuring VTP CH A P T E R 9 This chapter describes how to ...configure the VLAN Trunking Protocol (VTP) on configuring VLANs, see Chapter 10, "Configuring VLANs." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-1 This chapter consists of these sections: • Understanding How VTP Version 1 and Version ...
... deletion, and renaming of problems, such as duplicate VLAN names, incorrect VLAN-type specifications, and security violations. Note For complete information on the Catalyst enterprise LAN switches. Configuring VTP CH A P T E R 9 This chapter describes how to ...configure the VLAN Trunking Protocol (VTP) on configuring VLANs, see Chapter 10, "Configuring VLANs." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-1 This chapter consists of these sections: • Understanding How VTP Version 1 and Version ...
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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 ...trunk ports. 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 show trunk *...
...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 ...trunk ports. 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 show trunk *...
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...; A VTP version 3 server can be configured as primary or secondary. • VTP version 3 modes (server, client, and transparent) are specific to modify and store the VTP domain configuration in NVRAM. These features are described in detail in VTP version 3 is that is 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 A VTP client could only receive the configuration from the network and could not...
...; A VTP version 3 server can be configured as primary or secondary. • VTP version 3 modes (server, client, and transparent) are specific to modify and store the VTP domain configuration in NVRAM. These features are described in detail in VTP version 3 is that is 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 A VTP client could only receive the configuration from the network and could not...
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... Domain" section on using the takeover mechanism to the instance; 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 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...
... Domain" section on using the takeover mechanism to the instance; 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 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...
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To reconfigure this partitioned VTP domain, you need to issue a takeover message from server X to reduce this specific instance. If this switch (server X in Figure 9-5) as the new primary server for the domain. If you have a hidden password ... the case, it belongs to do a takeover. 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 the following : • Some switches may be temporarily disconnected and unreachable when the takeover ...
To reconfigure this partitioned VTP domain, you need to issue a takeover message from server X to reduce this specific instance. If this switch (server X in Figure 9-5) as the new primary server for the domain. If you have a hidden password ... the case, it belongs to do a takeover. 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 the following : • Some switches may be temporarily disconnected and unreachable when the takeover ...
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...21 • Limitations, page 9-21 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-19 VTP version 3 ...databases are still flooded. The feature stores its local configuration in the following reasons: • A switch reload. • A high-availability switchover between the active and redundant supervisor engines. • A takeover from the switch. Consequently, all VTP messages that is not specific...
...21 • Limitations, page 9-21 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-19 VTP version 3 ...databases are still flooded. The feature stores its local configuration in the following reasons: • A switch reload. • A high-availability switchover between the active and redundant supervisor engines. • A takeover from the switch. Consequently, all VTP messages that is not specific...
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...> (enable) show vtp domain Version : running VTP3 Domain Name : server Notifications: disabled Password : configured (hidden) Switch ID : 00d0.004c.1800 Feature Mode Revision Primary ID Primary Description VLAN Primary Server 1 00d0.004c.1800 UNKNOWN Off ...VTP domain and do not respond to display VTP statistics. When a port 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 Console> (enable) VTP Version 3 show Commands...
...> (enable) show vtp domain Version : running VTP3 Domain Name : server Notifications: disabled Password : configured (hidden) Switch ID : 00d0.004c.1800 Feature Mode Revision Primary ID Primary Description VLAN Primary Server 1 00d0.004c.1800 UNKNOWN Off ...VTP domain and do not respond to display VTP statistics. When a port 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 Console> (enable) VTP Version 3 show Commands...