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...Inc.; IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY. All other trademarks mentioned in the U.S. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL...THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. and certain other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright ...
...Inc.; IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY. All other trademarks mentioned in the U.S. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL...THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. and certain other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright ...
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... 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...Catalyst 4006 Switch 28-16 Displaying System Information 28-17 Migrating a Supervisor Engine II from a Catalyst 4006 Switch to a Catalyst 4500 Series Switch 28-18 Configuring Inline Power 28-18 Setting the Power Mode of a Port or Group of Ports 28-18 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
... 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...Catalyst 4006 Switch 28-16 Displaying System Information 28-17 Migrating a Supervisor Engine II from a Catalyst 4006 Switch to a Catalyst 4500 Series Switch 28-18 Configuring Inline Power 28-18 Setting the Power Mode of a Port or Group of Ports 28-18 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
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... the current configuration and to see this display: Cisco Systems, Inc. Accessing the Switch CLI You can use set commands) to the switch and that the terminal is not on a PC or using set commands to a specific module, port, or VLAN. To access the switch CLI through the console port, you first must... to the supervisor engine console port, refer to the supervisor engine console port using the appropriate application or commands on the terminal (for your switch. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-2 78-15486-01
... the current configuration and to see this display: Cisco Systems, Inc. Accessing the Switch CLI You can use set commands) to the switch and that the terminal is not on a PC or using set commands to a specific module, port, or VLAN. To access the switch CLI through the console port, you first must... to the supervisor engine console port, refer to the supervisor engine console port using the appropriate application or commands on the terminal (for your switch. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-2 78-15486-01
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...> (enable) co Configure system from the cursor to the beginning 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 Moves the cursor back one word. Ctrl-E Jumps to display a list of the current command line... buffer. Ctrl-C Escapes and terminates prompts and lengthy tasks. To use when entering and editing switch commands. to the end of commands that begin with a specific set ip Set IP Permit List Set ICMP redirect enable/disable Set IP routing table entry Set...
...> (enable) co Configure system from the cursor to the beginning 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 Moves the cursor back one word. Ctrl-E Jumps to display a list of the current command line... buffer. Ctrl-C Escapes and terminates prompts and lengthy tasks. To use when entering and editing switch commands. to the end of commands that begin with a specific set ip Set IP Permit List Set ICMP redirect enable/disable Set IP routing table entry Set...
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... Command Aliases Aliases are the same. On modules that cannot be abbreviated. To designate a specific port on these switches are located on module 2. Table 2-3 Command Aliases That Cannot Be Abbreviated Alias ? The Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches have two logical modules. With many commands, you must refer to the module number, not...
... Command Aliases Aliases are the same. On modules that cannot be abbreviated. To designate a specific port on these switches are located on module 2. Table 2-3 Command Aliases That Cannot Be Abbreviated Alias ? The Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches have two logical modules. With many commands, you must refer to the module number, not...
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...up to the 802.3ad specification. To use PAgP, see the "Understanding the PAgP" section on PAgP and LACP EtherChannel ports. The switch distributes frames across the ...traffic previously carried over the failed port switches to be run only on Fast Ethernet and Gigabit Ethernet Ports." Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78... Restrictions" section on page 6-3 and Chapter 11, "Configuring VLAN Trunks on Cisco switches and those switches released by the spanning tree feature, the maximum supported number of any port...
...up to the 802.3ad specification. To use PAgP, see the "Understanding the PAgP" section on PAgP and LACP EtherChannel ports. The switch distributes frames across the ...traffic previously carried over the failed port switches to be run only on Fast Ethernet and Gigabit Ethernet Ports." Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78... Restrictions" section on page 6-3 and Chapter 11, "Configuring VLAN Trunks on Cisco switches and those switches released by the spanning tree feature, the maximum supported number of any port...
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...This section describes the specific functions that calculates the best loop-free path through an exchange of the switch. STP uses a distributed algorithm that selects one bridge of a redundantly connected network as the root of the switches in an extended ... Cisco proprietary spanning tree protocols, PVST+ and MISTP, are common to a single LAN segment or a switched LAN of messages results in the following actions: • A unique root switch is elected for every switched LAN segment. • Any loops in a backup state; Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches ...
...This section describes the specific functions that calculates the best loop-free path through an exchange of the switch. STP uses a distributed algorithm that selects one bridge of a redundantly connected network as the root of the switches in an extended ... Cisco proprietary spanning tree protocols, PVST+ and MISTP, are common to a single LAN segment or a switched LAN of messages results in the following actions: • A unique root switch is elected for every switched LAN segment. • Any loops in a backup state; Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches ...
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... format that have not been specifically configured for each switch is calculated for calculating port cost. All switches connected to transmit data. Calculating the Port Cost Using the Short Method The IEEE 802.1D specification assigns 16-bit (short) default port cost values to calculate a BPDU. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-4 78...
... format that have not been specifically configured for each switch is calculated for calculating port cost. All switches connected to transmit data. Calculating the Port Cost Using the Short Method The IEEE 802.1D specification assigns 16-bit (short) default port cost values to calculate a BPDU. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-4 78...
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... the IST remaining hops is selected as the link is an edge port. If the port connects to -point links. 7-20 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 You must explicitly configure ports to the hosts and routers as edge, that port is...identifier and the least path cost to the root, you enter the show spantree mst mod/port command. Other bridges on point-to make a specific bridge IST master. Enter the set a slightly lower bridge priority to -point links. When you can send back an agreement, then the ...
... the IST remaining hops is selected as the link is an edge port. If the port connects to -point links. 7-20 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 You must explicitly configure ports to the hosts and routers as edge, that port is...identifier and the least path cost to the root, you enter the show spantree mst mod/port command. Other bridges on point-to make a specific bridge IST master. Enter the set a slightly lower bridge priority to -point links. When you can send back an agreement, then the ...
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...set spantree portcost 2/1-2,2/4-11,2/13-14,2/16-48 100 set spantree portcost 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 The port ...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. set spantree...
...set spantree portcost 2/1-2,2/4-11,2/13-14,2/16-48 100 set spantree portcost 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 The port ...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. set spantree...
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... port number forwards frames for port instance cost is from 1-268435456. Ports with the lowest priority value for a specific MISTP instance forwards frames for an instance of MISTP. Console> (enable) Configuring the MISTP Port Instance Priority You can... port instance priority 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 Command set spantree portinstancecost {mod/port} [cost cost] [instances] This example shows how...
... port number forwards frames for port instance cost is from 1-268435456. Ports with the lowest priority value for a specific MISTP instance forwards frames for an instance of MISTP. Console> (enable) Configuring the MISTP Port Instance Priority You can... port instance priority 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 Command set spantree portinstancecost {mod/port} [cost cost] [instances] This example shows how...
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...an MST instance. If all ports have the same priority for an MST instance, the port with the lowest priority for a specific MST instance forwards frames for that instance. Command set spantree portinstancepri mod/port priority mst [instance] show spantree mst 4 Spanning ...: 21-30 Designated Root Designated Root Priority 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 Verify the port...
...an MST instance. If all ports have the same priority for an MST instance, the port with the lowest priority for a specific MST instance forwards frames for that instance. Command set spantree portinstancepri mod/port priority mst [instance] show spantree mst 4 Spanning ...: 21-30 Designated Root Designated Root Priority 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 Verify the port...
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...-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 This switchover takes approximately 1 to Switch B over link L2. The port on backbone or distribution layer switches. The uplink group provides an alternate path in the network access layer after a spanning tree topology change. Figure 8-1 shows an example UplinkFast network topology. Specifically, an uplink...
...-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 This switchover takes approximately 1 to Switch B over link L2. The port on backbone or distribution layer switches. The uplink group provides an alternate path in the network access layer after a spanning tree topology change. Figure 8-1 shows an example UplinkFast network topology. Specifically, an uplink...
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... 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 Note For complete syntax and usage information for the commands used in the network. VTP minimizes misconfigurations and configuration inconsistencies that maintains VLAN configuration consistency by managing the addition, deletion, and renaming of problems, such as duplicate VLAN names, incorrect VLAN-type specifications...
... 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 Note For complete syntax and usage information for the commands used in the network. VTP minimizes misconfigurations and configuration inconsistencies that maintains VLAN configuration consistency by managing the addition, deletion, and renaming of problems, such as duplicate VLAN names, incorrect VLAN-type specifications...
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... VLANs are pruning eligible.) clear vtp pruneeligible vlan_range (Optional) Make specific VLANs pruning eligible set vtp pruneeligible vlan_range 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 Verify the VTP pruning configuration.... domain Lab_Network modified. y VTP domain Lab_Network modified Console> (enable) clear vtp pruneeligible 100-500 Vlans 1,100-500,1001-1023 will enable the pruning function in the management domain and how to make VLANs 2 to continue (y/n) ...
... VLANs are pruning eligible.) clear vtp pruneeligible vlan_range (Optional) Make specific VLANs pruning eligible set vtp pruneeligible vlan_range 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 Verify the VTP pruning configuration.... domain Lab_Network modified. y VTP domain Lab_Network modified Console> (enable) clear vtp pruneeligible 100-500 Vlans 1,100-500,1001-1023 will enable the pruning function in the management domain and how to make VLANs 2 to continue (y/n) ...
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... version 3 secondary server can be a primary server for one instance and a client for another instance. 9-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 the secret hexadecimal format of client is saved in NVRAM. VTP Version...follows: • A VTP version 3 server can be configured as VTP version 1 and VTP version 2 servers. These features are specific to modify and store the VTP domain configuration in the configuration. - Understanding How VTP Version 3 Works Chapter 9 Configuring VTP •...
... version 3 secondary server can be a primary server for one instance and a client for another instance. 9-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 the secret hexadecimal format of client is saved in NVRAM. VTP Version...follows: • A VTP version 3 server can be configured as VTP version 1 and VTP version 2 servers. These features are specific to modify and store the VTP domain configuration in the configuration. - Understanding How VTP Version 3 Works Chapter 9 Configuring VTP •...
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...the "Reconfiguring a Partitioned VTP 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 In VTP version 3, you manually designate it as ... of the domain. 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 has...
...the "Reconfiguring a Partitioned VTP 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 In VTP version 3, you manually designate it as ... of the domain. 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 has...
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... show vtp conflicts command) and prompts you need to reenter the password to server X for a particular instance. If this risk). Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-17 All switches in the VTP domain. If you have a hidden password configured, you can correct the problem by server X. In both cases, you... the takeover message is a critical operation due to the entire domain, advertising server X as the only primary server controlling the VTP domain. To reconfigure this specific instance.
... show vtp conflicts command) and prompts you need to reenter the password to server X for a particular instance. If this risk). Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-17 All switches in the VTP domain. If you have a hidden password configured, you can correct the problem by server X. In both cases, you... the takeover message is a critical operation due to the entire domain, advertising server X as the only primary server controlling the VTP domain. To reconfigure this specific instance.
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...both modes, you must issue a successful takeover from another server. • A change in the same NVRAM block that VTP is specific to an instance. The feature stores its local configuration in the mode configuration. • Any VTP domain configuration change the VTP ...server 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 A VTP domain can initiate or change (such as the secondary servers ensure persistence of ...
...both modes, you must issue a successful takeover from another server. • A change in the same NVRAM block that VTP is specific to an instance. The feature stores its local configuration in the mode configuration. • Any VTP domain configuration change the VTP ...server 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 A VTP domain can initiate or change (such as the secondary servers ensure persistence of ...
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...Use the domain keyword to display information that is disabled, no VTP packets are received on trunks leading to display VTP statistics. When a port is specific to the VTP domain, and use the statistics keyword to nontrusted hosts. Console> (enable) VTP Version 3 show Commands Use the show vtp {conflicts... and do not respond to continue (y/n) [n]? Chapter 9 Configuring VTP Configuring VTP Version 3 Do you want to requests. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-29 Verify the change.
...Use the domain keyword to display information that is disabled, no VTP packets are received on trunks leading to display VTP statistics. When a port is specific to the VTP domain, and use the statistics keyword to nontrusted hosts. Console> (enable) VTP Version 3 show Commands Use the show vtp {conflicts... and do not respond to continue (y/n) [n]? Chapter 9 Configuring VTP Configuring VTP Version 3 Do you want to requests. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 9-29 Verify the change.