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... imply a partnership relationship between Cisco and any other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright © 2000-2003, Cisco Systems, Inc. CCIP, CCSP, the Cisco Arrow logo, the Cisco Powered Network mark, Cisco Unity, Follow Me Browsing, ... FOR THEIR APPLICATION OF ANY PRODUCTS. All other countries. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. The Cisco implementation of TCP header compression is an adaptation of a program developed...
... imply a partnership relationship between Cisco and any other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright © 2000-2003, Cisco Systems, Inc. CCIP, CCSP, the Cisco Arrow logo, the Cisco Powered Network mark, Cisco Unity, Follow Me Browsing, ... FOR THEIR APPLICATION OF ANY PRODUCTS. All other countries. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. The Cisco implementation of TCP header compression is an adaptation of a program developed...
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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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... application or commands on a PC or using set and clear commands. To access the switch CLI through a Telnet session. Enter set commands) to a specific module, port, or VLAN. Accessing the Switch CLI You can use set commands to the console port through the console port, you ...(or in some cases, use normal-mode commands to monitor the switch or enter privileged mode to 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 ...
... application or commands on a PC or using set and clear commands. To access the switch CLI through a Telnet session. Enter set commands) to a specific module, port, or VLAN. Accessing the Switch CLI You can use set commands to the console port through the console port, you ...(or in some cases, use normal-mode commands to monitor the switch or enter privileged mode to 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 ...
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...the character at the privileged prompt to display a list of the command line. 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 The system ...Ctrl-B or the Left Arrow key1 Jumps to the beginning of commands that begin with co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Do not insert a space between TFTP/RCP/module/flash devices Note The system repeats the ...
...the character at the privileged prompt to display a list of the command line. 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 The system ...Ctrl-B or the Left Arrow key1 Jumps to the beginning of commands that begin with co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Do not insert a space between TFTP/RCP/module/flash devices Note The system repeats the ...
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... 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 To designate a specific port on these switches, you must refer to the module number, not the slot number. Chapter 2 Using the Command-Line Interface Using Command...
... 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 To designate a specific port on these switches, you must refer to the module number, not the slot number. Chapter 2 Using the Command-Line Interface Using Command...
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... and LACP EtherChannel ports. The frame distribution method is sent when a failure identifies the switch, the EtherChannel, and the failed link. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 You can enter the show port capabilities...a switch and a router, a host, or another switch. Note MAC address notification settings are ignored on page 6-16. To use PAgP, see the "Understanding the PAgP" section on the same module. The configuration is a Cisco-proprietary protocol that conform to the 802.3ad specification. ...
... and LACP EtherChannel ports. The frame distribution method is sent when a failure identifies the switch, the EtherChannel, and the failed link. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 You can enter the show port capabilities...a switch and a router, a host, or another switch. Note MAC address notification settings are ignored on page 6-16. To use PAgP, see the "Understanding the PAgP" section on the same module. The configuration is a Cisco-proprietary protocol that conform to the 802.3ad specification. ...
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...specific functions that are placed in STP-blocked mode. Port roles are as bridge protocol data units (BPDUs). When loops occur, some switches recognize stations on page 7-2. At regular intervals the switches... by placing redundant switch ports in the active topology. STP uses a distributed algorithm that spans all spanning tree protocols. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide... the active path. The Cisco proprietary spanning tree protocols, PVST+ and MISTP, are called root or designated switches. If one network segment becomes...
...specific functions that are placed in STP-blocked mode. Port roles are as bridge protocol data units (BPDUs). When loops occur, some switches recognize stations on page 7-2. At regular intervals the switches... by placing redundant switch ports in the active topology. STP uses a distributed algorithm that spans all spanning tree protocols. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide... the active path. The Cisco proprietary spanning tree protocols, PVST+ and MISTP, are called root or designated switches. If one network segment becomes...
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...The 16-bit values are not directly forwarded by the switch, but the receiving switch uses the information in your network to use the short method to the root from 1-65535. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-4 78-15486-01 ...) will be used for ports that have not been specifically configured for each switch. • A designated switch is the port that is closest to transmit data. All switches connected to calculate a BPDU. This is the switch that provides the best path from 1-200,000,000....
...The 16-bit values are not directly forwarded by the switch, but the receiving switch uses the information in your network to use the short method to the root from 1-65535. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-4 78-15486-01 ...) will be used for ports that have not been specifically configured for each switch. • A designated switch is the port that is closest to transmit data. All switches connected to calculate a BPDU. This is the switch that provides the best path from 1-200,000,000....
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... remaining hops is decremented at each host or router. You must explicitly configure ports to -point links. 7-20 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 To prevent a misconfiguration, PortFast turns off operationally if the port receives...boundary is selected as an edge port you must explicitly configure the ports that port. If the port connects to make a specific bridge IST master. See Chapter 8, "Configuring Spanning Tree PortFast, BPDU Guard, BPDU Filter, UplinkFast, BackboneFast, and Loop Guard."...
... remaining hops is decremented at each host or router. You must explicitly configure ports to -point links. 7-20 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 To prevent a misconfiguration, PortFast turns off operationally if the port receives...boundary is selected as an edge port you must explicitly configure the ports that port. If the port connects to make a specific bridge IST master. See Chapter 8, "Configuring Spanning Tree PortFast, BPDU Guard, BPDU Filter, UplinkFast, BackboneFast, and Loop Guard."...
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Port 2/3 VLANs 1-5,12 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 [vlans] Verify the port VLAN priority. Port 2/3 vlans 1-5,7-800,802-1004,1006-4094... 0 set spantree portvlancost 2/1 cost 99 set spantree portvlancost 2/2 cost 99 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 show config all This example shows how to configure the port VLAN cost on...
Port 2/3 VLANs 1-5,12 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 [vlans] Verify the port VLAN priority. Port 2/3 vlans 1-5,7-800,802-1004,1006-4094... 0 set spantree portvlancost 2/1 cost 99 set spantree portvlancost 2/2 cost 99 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 show config all This example shows how to configure the port VLAN cost on...
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...this task in privileged mode: Task Configure the port instance priority on an MISTP instance. Ports with the lowest priority value for a specific MISTP instance forwards frames for that instance. This parameter applies to forward frames. Chapter 7 Configuring Spanning Tree Using MISTP-PVST+ or MISTP... Configure the 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 If all ports have path cost 110110.
...this task in privileged mode: Task Configure the port instance priority on an MISTP instance. Ports with the lowest priority value for a specific MISTP instance forwards frames for that instance. This parameter applies to forward frames. Chapter 7 Configuring Spanning Tree Using MISTP-PVST+ or MISTP... Configure the 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 If all ports have path cost 110110.
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...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 ... portpri 30. 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 spantree portinstancepri mod/port priority mst [instance] show spantree mst [instance ...
...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 ... portpri 30. 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 spantree portinstancepri mod/port priority mst [instance] show spantree mst [instance ...
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...-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 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 the currently active link L2 (a direct link failure), UplinkFast unblocks the blocked port on Switch C that have a limited number of active VLANs. Specifically, an...
...-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 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 the currently active link L2 (a direct link failure), UplinkFast unblocks the blocked port on Switch C that have a limited number of active VLANs. Specifically, an...
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...inconsistencies that maintains VLAN configuration consistency by managing the addition, deletion, and renaming of VLANs on the Catalyst enterprise LAN switches. Note For complete syntax and usage information for the commands used in this chapter, refer to ... changes centrally 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 problems, such as duplicate VLAN names, incorrect VLAN-type specifications, and security violations.
...inconsistencies that maintains VLAN configuration consistency by managing the addition, deletion, and renaming of VLANs on the Catalyst enterprise LAN switches. Note For complete syntax and usage information for the commands used in this chapter, refer to ... changes centrally 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 problems, such as duplicate VLAN names, incorrect VLAN-type specifications, and security violations.
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...you want to 99, 250-255, and 501-1000 pruning eligible 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 pruneeligible 250-255 Vlans 2-99,250-255,501-1000,... 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 (Optional) Make specific VLANs pruning ineligible on the device. (By default, VLANs 2-1000 are being pruned on this device...
...you want to 99, 250-255, and 501-1000 pruning eligible 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 pruneeligible 250-255 Vlans 2-99,250-255,501-1000,... 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 (Optional) Make specific VLANs pruning ineligible on the device. (By default, VLANs 2-1000 are being pruned on this device...
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... a VTP instance. • A VTP version 3 domain can be configured as a primary server, you are specific to be configured on a per -port configuration options, see the "Disabling VTP Version 3 on a Per-Port Basis" section on page 9-29. ...Servers, and Clients In previous VTP implementations, the main VTP server characteristic was to a switch or server that the server, client, and transparent modes are prompted for another instance. 9-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 For example, it is now possible to...
... a VTP instance. • A VTP version 3 domain can be configured as a primary server, you are specific to be configured on a per -port configuration options, see the "Disabling VTP Version 3 on a Per-Port Basis" section on page 9-29. ...Servers, and Clients In previous VTP implementations, the main VTP server characteristic was to a switch or server that the server, client, and transparent modes are prompted for another instance. 9-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 For example, it is now possible to...
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...3: Partitioned VTP Domain Domain Cisco Primary Server X Domain Cisco Primary Server Y Chapter 9 Configuring VTP 94282 Partitions exist because of the domain. Partitions are required to the instance; If a new switch is specific to remove any partitions because .... Reconfiguring a Partitioned VTP Domain Partitioning of a misconfigured switch. Figure 9-5 shows a VTP domain that cannot automatically be partitioned. one specific VTP instance. 9-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 This behavior...
...3: Partitioned VTP Domain Domain Cisco Primary Server X Domain Cisco Primary Server Y Chapter 9 Configuring VTP 94282 Partitions exist because of the domain. Partitions are required to the instance; If a new switch is specific to remove any partitions because .... Reconfiguring a Partitioned VTP Domain Partitioning of a misconfigured switch. Figure 9-5 shows a VTP domain that cannot automatically be partitioned. one specific VTP instance. 9-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 This behavior...
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...the correct configuration for a particular instance. Initiating the takeover mechanism is a critical operation due to the following : • Some switches may be temporarily disconnected and unreachable when the takeover message is sent. • The takeover message might be due to the ...primary server controlling the entire VTP domain for the domain. 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 this specific instance. If this partitioned VTP domain, you can correct...
...the correct configuration for a particular instance. Initiating the takeover mechanism is a critical operation due to the following : • Some switches may be temporarily disconnected and unreachable when the takeover message is sent. • The takeover message might be due to the ...primary server controlling the entire VTP domain for the domain. 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 this specific instance. If this partitioned VTP domain, you can correct...
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... 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 The primary server state is only one primary server in the VTP domain. In both modes, ...and redundant supervisor engines. • A takeover from the switch. In VTP off mode in VTP version 3 is similar to the previous VTP versions and is propagated to an instance. The takeover mechanism is not specific to the entire domain. To reach the primary server state,...
... 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 The primary server state is only one primary server in the VTP domain. In both modes, ...and redundant supervisor engines. • A takeover from the switch. In VTP off mode in VTP version 3 is similar to the previous VTP versions and is propagated to an instance. The takeover mechanism is not specific to the entire domain. To reach the primary server state,...
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.../port {enable | disable} 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 Pruning : disabled... or servers that is disabled on page 9-14. Use the set port vtp 3/1-2 disable 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
.../port {enable | disable} 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 Pruning : disabled... or servers that is disabled on page 9-14. Use the set port vtp 3/1-2 disable 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