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...The Fastest Way to Increase Your Internet Quotient, TransPath, and VCO are trademarks of Cisco Systems, Inc. and certain other trademarks mentioned in the U.S. The use of their respective owners. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE....Play, and Learn, and iQuick Study are the property of the word partner does not 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...
...The Fastest Way to Increase Your Internet Quotient, TransPath, and VCO are trademarks of Cisco Systems, Inc. and certain other trademarks mentioned in the U.S. The use of their respective owners. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE....Play, and Learn, and iQuick Study are the property of the word partner does not 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...
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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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..., Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-2 78-15486-01 To access the switch CLI through the console port, you first must connect a console terminal to change the configuration. Enter set and clear commands. If the switch is already booted, press Enter to a specific module, port, or VLAN. For more information, see this display: Cisco...
..., Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-2 78-15486-01 To access the switch CLI through the console port, you first must connect a console terminal to change the configuration. Enter set and clear commands. If the switch is already booted, press Enter to a specific module, port, or VLAN. For more information, see this display: Cisco...
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to display a list 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 at the cursor. Table 2-1 lists the keystrokes you can use the partial-keyword-lookup function, enter ? Ctrl-D...flash devices Note The system repeats the command you entered without the question mark (?). The system displays all 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 repeats...
to display a list 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 at the cursor. Table 2-1 lists the keystrokes you can use the partial-keyword-lookup function, enter ? Ctrl-D...flash devices Note The system repeats the command you entered without the question mark (?). The system displays all 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 repeats...
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... port ranges. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-7 In most port is numbered 2/1 instead of ports. For example, all of the user-configurable ports on module 2. On modules that cannot be abbreviated. With many commands, you enter configuration commands on a specific module, the command syntax is...
... port ranges. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-7 In most port is numbered 2/1 instead of ports. For example, all of the user-configurable ports on module 2. On modules that cannot be abbreviated. With many commands, you enter configuration commands on a specific module, the command syntax is...
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... in an EtherChannel must be on Cisco switches and those switches released by the spanning tree feature, the maximum supported number of channels is hardware dependent. LACP, which ports you have to the 802.3ad specification. PAgP and LACP Chapter 6 Configuring...and to eight compatibly configured Fast or Gigabit Ethernet ports on the Catalyst 4500 series switches, you can configure an EtherChannel using ports from multiple modules. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 Depending on the...
... in an EtherChannel must be on Cisco switches and those switches released by the spanning tree feature, the maximum supported number of channels is hardware dependent. LACP, which ports you have to the 802.3ad specification. PAgP and LACP Chapter 6 Configuring...and to eight compatibly configured Fast or Gigabit Ethernet ports on the Catalyst 4500 series switches, you can configure an EtherChannel using ports from multiple modules. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 Depending on the...
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... Spanning tree algorithms provide path redundancy by activating a standby path. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-2 78-15486-01 Understanding How a Topology Is Created All switches in an extended LAN participating in a spanning tree gather information about... Tree Understanding How STPs Work This section describes the specific functions that are not needed to reach the root switch from anywhere in the switched network are placed in STP-blocked mode. The Cisco proprietary spanning tree protocols, PVST+ and MISTP, are...
... Spanning tree algorithms provide path redundancy by activating a standby path. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-2 78-15486-01 Understanding How a Topology Is Created All switches in an extended LAN participating in a spanning tree gather information about... Tree Understanding How STPs Work This section describes the specific functions that are not needed to reach the root switch from anywhere in the switched network are placed in STP-blocked mode. The Cisco proprietary spanning tree protocols, PVST+ and MISTP, are...
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... 16-bit values are not directly forwarded by using the CLI. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-4 78-15486-01 If the topology changes, the receiving switch initiates a BPDU transmission. For more information on setting the default cost... on bandwidth. You can calculate and assign lower path cost values (port costs) to each switch. • A designated switch is the switch that have not been specifically configured for calculating port cost. Calculating the Port Cost Using the Short Method The IEEE 802....
... 16-bit values are not directly forwarded by using the CLI. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-4 78-15486-01 If the topology changes, the receiving switch initiates a BPDU transmission. For more information on setting the default cost... on bandwidth. You can calculate and assign lower path cost values (port costs) to each switch. • A designated switch is the switch that have not been specifically configured for calculating port cost. Calculating the Port Cost Using the Short Method The IEEE 802....
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...root bridge for CST, then it does not have an identical path to the root, you need to -point links. 7-20 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 If the CST root is out side the MST region, then one of the MST...the show spantree portfast mod/port command, if the designation for each hop. When you enable PortFast on the boundary that belong to make a specific bridge IST master. However, cabling in most networks meets this requirement, and you must explicitly configure the ports that is connected to a host...
...root bridge for CST, then it does not have an identical path to the root, you need to -point links. 7-20 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 If the CST root is out side the MST region, then one of the MST...the show spantree portfast mod/port command, if the designation for each hop. When you enable PortFast on the boundary that belong to make a specific bridge IST master. However, cabling in most networks meets this requirement, and you must explicitly configure the ports that is connected to a host...
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... path cost 20000. 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. The port with the lowest port number forwards frames for that VLAN. The possible port VLAN priority range is...] This example shows how to configure the port VLAN priority 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 The default is from 0-63.
... path cost 20000. 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. The port with the lowest port number forwards frames for that VLAN. The possible port VLAN priority range is...] This example shows how to configure the port VLAN priority 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 The default is from 0-63.
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...lowest priority value for a specific MISTP instance forwards frames for that instance. The possible value for port instance cost is from 1-268435456. 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 ... have path cost 110110. The port with a lower instance cost are attached to configure the MISTP port instance cost on a switch port. The default cost differs for that are more likely to be chosen to trunking ports only. If all ports have the...
...lowest priority value for a specific MISTP instance forwards frames for that instance. The possible value for port instance cost is from 1-268435456. 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 ... have path cost 110110. The port with a lower instance cost are attached to configure the MISTP port instance cost on a switch port. The default cost differs for that are more likely to be chosen to trunking ports only. If all ports have the...
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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. Port 6/1 MST Instances 0-1,3-15 using portpri 20. Chapter 7 Configuring Spanning Tree Configuring MST... 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 To configure the port instance priority on an MST instance, perform this task in privileged mode...
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. Port 6/1 MST Instances 0-1,3-15 using portpri 20. Chapter 7 Configuring Spanning Tree Configuring MST... 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 To configure the port instance priority on an MST instance, perform this task in privileged mode...
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... Figure 8-1 shows an example UplinkFast network topology. This switchover takes approximately 1 to Switch C over link L1 and to 5 seconds. The port on backbone or distribution layer switches. Specifically, an uplink group consists of the root port (which is forwarding) and a ... active link L2 (a direct link failure), UplinkFast unblocks the blocked port on Switch C and transitions it to forwarding state 11242 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 Figure 8-2 Example of blocked ports (not ...
... Figure 8-1 shows an example UplinkFast network topology. This switchover takes approximately 1 to Switch C over link L1 and to 5 seconds. The port on backbone or distribution layer switches. Specifically, an uplink group consists of the root port (which is forwarding) and a ... active link L2 (a direct link failure), UplinkFast unblocks the blocked port on Switch C and transitions it to forwarding state 11242 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 Figure 8-2 Example of blocked ports (not ...
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...configuration consistency by managing the addition, deletion, and renaming of problems, such as duplicate VLAN names, incorrect VLAN-type specifications, and security violations. You can use VTP to manage VLANs 1-1005 in your network. (VTP version 1 and... 10, "Configuring VLANs." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-1 Configuring VTP CH A P T E R 9 This chapter describes how to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. Note For complete syntax and usage...
...configuration consistency by managing the addition, deletion, and renaming of problems, such as duplicate VLAN names, incorrect VLAN-type specifications, and security violations. You can use VTP to manage VLANs 1-1005 in your network. (VTP version 1 and... 10, "Configuring VLANs." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-1 Configuring VTP CH A P T E R 9 This chapter describes how to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. Note For complete syntax and usage...
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... isl trunking 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 VTP domain Lab_Network modified. indicates dot1q-all features VTP domain Lab_Network ... (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 mode server Changing VTP mode for pruning on this device. Chapter 9 Configuring VTP Configuring VTP...
... isl trunking 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 VTP domain Lab_Network modified. indicates dot1q-all features VTP domain Lab_Network ... (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 mode server Changing VTP mode for pruning on this device. Chapter 9 Configuring VTP Configuring VTP...
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... VTP version 3 domain 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 VTP version 3 is that is not trusted and is saved in the configuration; The...Per-Port Basis" section on per -port basis. the secret hexadecimal format of client is possible for another instance. 9-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 If you try to disable the protocol on a per -port configuration options, ...
... VTP version 3 domain 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 VTP version 3 is that is not trusted and is saved in the configuration; The...Per-Port Basis" section on per -port basis. the secret hexadecimal format of client is possible for another instance. 9-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 If you try to disable the protocol on a per -port configuration options, ...
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...3 protects the domain from accepting a conflicting configuration after the insertion 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 Reconfiguring a Partitioned VTP Domain Partitioning of a VTP... specific to reconfigure partitioned VTP domains, see the "Reconfiguring a Partitioned VTP Domain" section on page 9-16. Understanding How VTP Version 3 Works Figure 9-4 VTP Version 3: Partitioned VTP Domain Domain Cisco Primary Server X Domain Cisco Primary Server Y Chapter 9 ...
...3 protects the domain from accepting a conflicting configuration after the insertion 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 Reconfiguring a Partitioned VTP Domain Partitioning of a VTP... specific to reconfigure partitioned VTP domains, see the "Reconfiguring a Partitioned VTP Domain" section on page 9-16. Understanding How VTP Version 3 Works Figure 9-4 VTP Version 3: Partitioned VTP Domain Domain Cisco Primary Server X Domain Cisco Primary Server Y Chapter 9 ...
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...8226; The takeover erases conflicting configurations that are initiated by issuing additional takeover messages. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-17 All switches in the domain will only accept instance configuration updates that are not correctly authenticated.... belongs to the following : • Some switches may be temporarily disconnected and unreachable when the takeover message is sent. • The takeover message might be due to reduce this specific instance. If you have a hidden password configured...
...8226; The takeover erases conflicting configurations that are initiated by issuing additional takeover messages. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-17 All switches in the domain will only accept instance configuration updates that are not correctly authenticated.... belongs to the following : • Some switches may be temporarily disconnected and unreachable when the takeover message is sent. • The takeover message might be due to reduce this specific instance. If you have a hidden password configured...
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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 You only need the primary server when the VTP configuration for the feature happens through ...• Any VTP domain configuration change the VTP configuration. VTP version 3 databases are dropped on the trunks. The takeover mechanism is not specific to become a primary server. A VTP domain can issue a takeover to an instance. VTP version 3 is controlling. VTP Version 3 ...
... 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 You only need the primary server when the VTP configuration for the feature happens through ...• Any VTP domain configuration change the VTP configuration. VTP version 3 databases are dropped on the trunks. The takeover mechanism is not specific to become a primary server. A VTP domain can issue a takeover to an instance. VTP version 3 is controlling. VTP Version 3 ...
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... domain and do not respond to show vtp {conflicts | devices | domain | statistics} command to requests. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-29 In addition, clients or servers that is enabled and advertisements are received on page 9-14....disable all trunks. Use the set port vtp mod/port {enable | disable} command to continue (y/n) [n]? By default, VTP is specific to the VTP domain, and use the statistics keyword to nontrusted hosts. Verify the change. This capability might be used on trunks leading...
... domain and do not respond to show vtp {conflicts | devices | domain | statistics} command to requests. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-29 In addition, clients or servers that is enabled and advertisements are received on page 9-14....disable all trunks. Use the set port vtp mod/port {enable | disable} command to continue (y/n) [n]? By default, VTP is specific to the VTP domain, and use the statistics keyword to nontrusted hosts. Verify the change. This capability might be used on trunks leading...