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...its affiliates in this document or Web site are service marks 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. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF..., OR TRADE PRACTICE. The use of the word partner does not imply a partnership relationship between Cisco and any other trademarks mentioned in the U.S. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS,...
...its affiliates in this document or Web site are service marks 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. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF..., OR TRADE PRACTICE. The use of the word partner does not imply a partnership relationship between Cisco and any other trademarks mentioned in the U.S. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS,...
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...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 ...
...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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... Note For complete information on page 2-9). The bootup display should appear on the screen (see this display: Cisco Systems, Inc. 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 the... the CLI might apply to the entire system or to a specific module, port, or VLAN. If the switch is not on . Accessing the Switch CLI Chapter 2 Using the Command-Line Interface The Catalyst enterprise LAN switches are multi-module systems. Commands you first must connect a console...
... Note For complete information on page 2-9). The bootup display should appear on the screen (see this display: Cisco Systems, Inc. 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 the... the CLI might apply to the entire system or to a specific module, port, or VLAN. If the switch is not on . Accessing the Switch CLI Chapter 2 Using the Command-Line Interface The Catalyst enterprise LAN switches are multi-module systems. Commands you first must connect a console...
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...you entered without the question mark (?). The system displays all 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 Ctrl-C Escapes and terminates prompts and lengthy tasks. Ctrl-E Jumps to the end of ...entered without the question mark (?). Enters next command line from the cursor to display a list of commands that start 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...
...you entered without the question mark (?). The system displays all 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 Ctrl-C Escapes and terminates prompts and lengthy tasks. Ctrl-E Jumps to the end of ...entered without the question mark (?). Enters next command line from the cursor to display a list of commands that start 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...
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... 1. The Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches have two logical modules. To designate a specific port on module 2. To designate a specific module, use a comma-separated list (do not insert spaces) to specify individual ports or a hyphen (-) between the port numbers to designate ports and port ranges. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software...
... 1. The Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches have two logical modules. To designate a specific port on module 2. To designate a specific module, use a comma-separated list (do not insert spaces) to specify individual ports or a hyphen (-) between the port numbers to designate ports and port ranges. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software...
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...can configure an EtherChannel using ports from multiple modules. The switch distributes frames across the links in IEEE 802.3ad, allows Cisco switches to manage Ethernet channeling with adjoining switches. After you have to be run only on your hardware ...specification. To use LACP, see the "Understanding the LACP" section on PAgP and LACP EtherChannel ports. To use PAgP, see the "EtherChannel Configuration Guidelines and Restrictions" section on page 6-3 and Chapter 11, "Configuring VLAN Trunks on the same module. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
...can configure an EtherChannel using ports from multiple modules. The switch distributes frames across the links in IEEE 802.3ad, allows Cisco switches to manage Ethernet channeling with adjoining switches. After you have to be run only on your hardware ...specification. To use LACP, see the "Understanding the LACP" section on PAgP and LACP EtherChannel ports. To use PAgP, see the "EtherChannel Configuration Guidelines and Restrictions" section on page 6-3 and Chapter 11, "Configuring VLAN Trunks on the same module. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
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...switches in the switched network are common to a single LAN segment or a switched LAN of data messages known as bridge protocol data units (BPDUs). Understanding How STPs Work Chapter 7 Configuring Spanning Tree Understanding How STPs Work This section describes the specific...between stations can cause loops in a backup state; Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-2 78-15486-01... a standby path. The Cisco proprietary spanning tree protocols, PVST+ and MISTP, are called root or designated switches. Port roles are as ...
...switches in the switched network are common to a single LAN segment or a switched LAN of data messages known as bridge protocol data units (BPDUs). Understanding How STPs Work Chapter 7 Configuring Spanning Tree Understanding How STPs Work This section describes the specific...between stations can cause loops in a backup state; Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-2 78-15486-01... a standby path. The Cisco proprietary spanning tree protocols, PVST+ and MISTP, are called root or designated switches. Port roles are as ...
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... is the port that provides the best path from the transmitting port • The identifier of the switch that have not been specifically configured for each switch is the default) or the long method. You can ensure that yields values from 1-65535. BPDUs ...the transmitting switch believes to communicate with and compute the spanning tree topology. A BPDU exchange results in your network to use the short method to calculate a BPDU. The 16-bit values are not directly forwarded by the switch for port cost. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software ...
... is the port that provides the best path from the transmitting port • The identifier of the switch that have not been specifically configured for each switch is the default) or the long method. You can ensure that yields values from 1-65535. BPDUs ...the transmitting switch believes to communicate with and compute the spanning tree topology. A BPDU exchange results in your network to use the short method to calculate a BPDU. The 16-bit values are not directly forwarded by the switch for port cost. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software ...
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... master of that is connected by using MST. If an MST bridge is the root bridge for the bridge. Other bridges on point-to make a specific bridge IST master. These ports start forwarding again. See Chapter 8, "Configuring Spanning Tree PortFast, BPDU Guard, BPDU Filter, UplinkFast, BackboneFast, and Loop Guard." To prevent... Ports The IST master of an MST region 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
... master of that is connected by using MST. If an MST bridge is the root bridge for the bridge. Other bridges on point-to make a specific bridge IST master. These ports start forwarding again. See Chapter 8, "Configuring Spanning Tree PortFast, BPDU Guard, BPDU Filter, UplinkFast, BackboneFast, and Loop Guard." To prevent... Ports The IST master of an MST region 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
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...for a particular VLAN, the port with the lowest priority value for a specific VLAN forwards frames for that VLAN. show config all This example shows how to configure the port VLAN cost on a switch port. The possible port VLAN priority range is 32. The port with ... 2/3 12 set spantree portpri 2/1-48 32 set spantree portvlanpri 2/1 0 set spantree portvlancost 2/3 cost 20000 1-5,12 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-27 Console> (enable Configuring the PVST+ Port VLAN Priority When the...
...for a particular VLAN, the port with the lowest priority value for a specific VLAN forwards frames for that VLAN. show config all This example shows how to configure the port VLAN cost on a switch port. The possible port VLAN priority range is 32. The port with ... 2/3 12 set spantree portpri 2/1-48 32 set spantree portvlanpri 2/1 0 set spantree portvlancost 2/3 cost 20000 1-5,12 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-27 Console> (enable Configuring the PVST+ Port VLAN Priority When the...
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...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 The possible port instance range is from 0-63. If all ports have the same priority value ...You can set the port priority for an instance of MISTP or MISTP-PVST+. Ports with the lowest priority value for a specific MISTP instance forwards frames for that instance. You should assign lower numbers to ports that are more likely to be chosen to...
...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 The possible port instance range is from 0-63. If all ports have the same priority value ...You can set the port priority for an instance of MISTP or MISTP-PVST+. Ports with the lowest priority value for a specific MISTP instance forwards frames for that instance. You should assign lower numbers to ports that are more likely to be chosen to...
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... 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 Port 6/1 MST Instances 0-1,3-15 using portpri 20. 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. Chapter 7 Configuring...
... 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 Port 6/1 MST Instances 0-1,3-15 using portpri 20. 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. Chapter 7 Configuring...
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... (as shown in Figure 8-2). This switchover takes approximately 1 to forwarding state 11242 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 The uplink group provides an alternate path in the network access layer after...root port (which is forwarding) and 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 5 seconds. Specifically, an uplink group consists of active VLANs. Figure 8-1 shows an example UplinkFast ...
... (as shown in Figure 8-2). This switchover takes approximately 1 to forwarding state 11242 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 The uplink group provides an alternate path in the network access layer after...root port (which is forwarding) and 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 5 seconds. Specifically, an uplink group consists of active VLANs. Figure 8-1 shows an example UplinkFast ...
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... incorrect VLAN-type specifications, and security violations. 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-... do not support VLANs 1025-4094.) With VTP, you can use VTP to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. You can make configuration changes centrally on a network-wide basis. Note For complete information on...
... incorrect VLAN-type specifications, and security violations. 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-... do not support VLANs 1025-4094.) With VTP, you can use VTP to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. You can make configuration changes centrally on a network-wide basis. Note For complete information on...
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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 .../1 1-1005,1025-4094 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-11 Do you want to 99, 250-255, and 501-1000 pruning eligible on trunk ports. set vtp pruning enable (Optional) Make specific VLANs pruning ineligible on the device. ...
... 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 .../1 1-1005,1025-4094 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-11 Do you want to 99, 250-255, and 501-1000 pruning eligible on trunk ports. set vtp pruning enable (Optional) Make specific VLANs pruning ineligible on the device. ...
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... example, it . VTP version 3 allows you to configure the domain. If a trunk is connected to a switch or server that the server, client, and transparent modes are specific to a VTP instance. • A VTP version 3 domain can store the configuration of the domain but cannot... the same way as VTP version 1 and VTP version 2 servers. These features are prompted 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...
... example, it . VTP version 3 allows you to configure the domain. If a trunk is connected to a switch or server that the server, client, and transparent modes are specific to a VTP instance. • A VTP version 3 domain can store the configuration of the domain but cannot... the same way as VTP version 1 and VTP version 2 servers. These features are prompted 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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...of a misconfiguration or an independent configuration of a temporarily disconnected part of the domain. one specific VTP instance. 9-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Partitions are required to reconfigure partitioned VTP domains,...new primary server. Understanding How VTP Version 3 Works Figure 9-4 VTP Version 3: Partitioned VTP Domain Domain Cisco Primary Server X Domain Cisco Primary Server Y Chapter 9 Configuring VTP 94282 Partitions exist because of discrepancies in the domain configuration that...
...of a misconfiguration or an independent configuration of a temporarily disconnected part of the domain. one specific VTP instance. 9-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Partitions are required to reconfigure partitioned VTP domains,...new primary server. Understanding How VTP Version 3 Works Figure 9-4 VTP Version 3: Partitioned VTP Domain Domain Cisco Primary Server X Domain Cisco Primary Server Y Chapter 9 Configuring VTP 94282 Partitions exist because of discrepancies in the domain configuration that...
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...specific instance. After a takeover, there should only be lost on some links (however, the takeover messages are initiated by issuing additional takeover messages. Initiating the takeover mechanism is sent. • The takeover message might be one primary server controlling the entire VTP domain for this risk). Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches... Software Configuration Guide-Release 8.1 9-17 Switches refuse the takeover request if they are ...
...specific instance. After a takeover, there should only be lost on some links (however, the takeover messages are initiated by issuing additional takeover messages. Initiating the takeover mechanism is sent. • The takeover message might be one primary server controlling the entire VTP domain for this risk). Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches... Software Configuration Guide-Release 8.1 9-17 Switches refuse the takeover request if they are ...
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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 there is specific to the entire domain. In VTP off mode in the running configuration (if applicable). The primary server state...
... 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 there is specific to the entire domain. In VTP off mode in the running configuration (if applicable). The primary server state...
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... verify the configuration: Console> (enable) set port vtp mod/port {enable | disable} command to enable or disable all trunks. Verify the change. When a port is specific to the VTP domain, and use the statistics keyword to requests. To disable VTP on a per-port basis, perform this task in privileged mode: Step... Version 3 on a Per-Port Basis Note For additional details, see the "VTP Version 3 Per-Port Configuration" section on trunks leading to requests. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-29
... verify the configuration: Console> (enable) set port vtp mod/port {enable | disable} command to enable or disable all trunks. Verify the change. When a port is specific to the VTP domain, and use the statistics keyword to requests. To disable VTP on a per-port basis, perform this task in privileged mode: Step... Version 3 on a Per-Port Basis Note For additional details, see the "VTP Version 3 Per-Port Configuration" section on trunks leading to requests. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-29