Software Guide
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... Aggregation Protocol 2 Understanding Frame Distribution 3 EtherChannel Configuration Guidelines 4 Configuring EtherChannel 5 Configuring an EtherChannel 5 Setting the EtherChannel Port Mode 5 Setting the EtherChannel Port Path Cost 6 Setting the EtherChannel VLAN Cost 6 Configuring EtherChannel Frame Distribution 8 Displaying EtherChannel Traffic Utilization 8 Displaying Outgoing Ports for a Specified Address or Layer 4 Port Number 8 Disabling an EtherChannel 9 Configuring IEEE...
... Aggregation Protocol 2 Understanding Frame Distribution 3 EtherChannel Configuration Guidelines 4 Configuring EtherChannel 5 Configuring an EtherChannel 5 Setting the EtherChannel Port Mode 5 Setting the EtherChannel Port Path Cost 6 Setting the EtherChannel VLAN Cost 6 Configuring EtherChannel Frame Distribution 8 Displaying EtherChannel Traffic Utilization 8 Displaying Outgoing Ports for a Specified Address or Layer 4 Port Number 8 Disabling an EtherChannel 9 Configuring IEEE...
Software Guide
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Contents Calculating and Assigning Port Costs 4 Spanning Tree Port States 5 Understanding PVST+ and MISTP Modes 11 PVST+ Mode 12 MISTP Mode 12 MISTP-PVST+ Mode 13 Bridge Identifiers 13 MAC Address ...+ 15 Default PVST+ Configuration 15 Setting the PVST+ Bridge ID Priority 16 Configuring the PVST+ Port Cost 17 Configuring the PVST+ Port Priority 18 Configuring the PVST+ Default Port Cost Mode 18 Configuring the PVST+ Port Cost for a VLAN 19 Configuring the PVST+ Port Priority for a VLAN 20 Disabling the PVST+ Mode on...
Contents Calculating and Assigning Port Costs 4 Spanning Tree Port States 5 Understanding PVST+ and MISTP Modes 11 PVST+ Mode 12 MISTP Mode 12 MISTP-PVST+ Mode 13 Bridge Identifiers 13 MAC Address ...+ 15 Default PVST+ Configuration 15 Setting the PVST+ Bridge ID Priority 16 Configuring the PVST+ Port Cost 17 Configuring the PVST+ Port Priority 18 Configuring the PVST+ Default Port Cost Mode 18 Configuring the PVST+ Port Cost for a VLAN 19 Configuring the PVST+ Port Priority for a VLAN 20 Disabling the PVST+ Mode on...
Software Guide
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.../warp/public/687/Directory/DirTAC.shtml Before calling, please check with a P1 or P2 problem, a Cisco TAC engineer automatically opens a case. When you can use the Cisco TAC website to which your own words and attach any necessary files. The site provides around-the-clock access to the technical... so that you contact the TAC Escalation Center with your network operations center to determine the level of Cisco support services to resolve P3 and P4 issues yourself, saving both cost and time. If you call the center, please have available your service agreement number and your country,...
.../warp/public/687/Directory/DirTAC.shtml Before calling, please check with a P1 or P2 problem, a Cisco TAC engineer automatically opens a case. When you can use the Cisco TAC website to which your own words and attach any necessary files. The site provides around-the-clock access to the technical... so that you contact the TAC Escalation Center with your network operations center to determine the level of Cisco support services to resolve P3 and P4 issues yourself, saving both cost and time. If you call the center, please have available your service agreement number and your country,...
Software Guide
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...) not supported Spanning Tree Protocol (STP) Enabled for VLAN 1 Native VLAN VLAN 1 Port VLAN cost • Port VLAN cost of 100 for 10-Mbps Ethernet ports • Port VLAN cost of 19 for 10/100-Mbps Fast Ethernet ports • Port VLAN cost of 19 for 100-Mbps Fast Ethernet ports • Port VLAN... cost of the link. Link Status Near End Up Up Up Down Far End Up Up Down Up Default...
...) not supported Spanning Tree Protocol (STP) Enabled for VLAN 1 Native VLAN VLAN 1 Port VLAN cost • Port VLAN cost of 100 for 10-Mbps Ethernet ports • Port VLAN cost of 19 for 10/100-Mbps Fast Ethernet ports • Port VLAN cost of 19 for 100-Mbps Fast Ethernet ports • Port VLAN... cost of the link. Link Status Near End Up Up Up Down Far End Up Up Down Up Default...
Software Guide
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...is forwarding for all VLANs. Verify that Switch 2 has learned the VLAN configuration by entering the show spantree 1/2 Port Vlan Port-State Cost 1/2 1 blocking 19 1/2 10 blocking 19 1/2 20 blocking 19 1/2 30 blocking 19 1/2 40 blocking 19 1/2 50 blocking 19 1/2... to converge. Trunk 1 is blocking. Trunk 2 is blocking for all VLANs. Switch_1> (enable) show spantree 1/1 Port Vlan Port-State Cost 1/1 1 forwarding 19 1/1 10 forwarding 19 1/1 20 forwarding 19 1/1 30 forwarding 19 1/1 40 forwarding 19 1/1 50 forwarding 19 1/1 ...
...is forwarding for all VLANs. Verify that Switch 2 has learned the VLAN configuration by entering the show spantree 1/2 Port Vlan Port-State Cost 1/2 1 blocking 19 1/2 10 blocking 19 1/2 20 blocking 19 1/2 30 blocking 19 1/2 40 blocking 19 1/2 50 blocking 19 1/2... to converge. Trunk 1 is blocking. Trunk 2 is blocking for all VLANs. Switch_1> (enable) show spantree 1/1 Port Vlan Port-State Cost 1/1 1 forwarding 19 1/1 10 forwarding 19 1/1 20 forwarding 19 1/1 30 forwarding 19 1/1 40 forwarding 19 1/1 50 forwarding 19 1/1 ...
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...sharing. 78-13315-02 Catalyst 6000 Family Software Configuration Guide-Releases 6.3 and 6.4 5-21 Switch_1> (enable) show spantree 1/1 Port Vlan Port-State Cost 1/1 1 forwarding 19 1/1 10 forwarding 19 1/1 20 forwarding 19 1/1 30 forwarding 19 1/1 40 blocking 19 1/1 50 blocking 19 1/1 60...12 On Switch 2, change the port-VLAN priority for those VLANs on Switch 1 by entering the show spantree 1/2 Port Vlan Port-State Cost 1/2 1 blocking 19 1/2 10 blocking 19 1/2 20 blocking 19 1/2 30 blocking 19 1/2 40 forwarding 19 1/2 50 forwarding 19 ...
...sharing. 78-13315-02 Catalyst 6000 Family Software Configuration Guide-Releases 6.3 and 6.4 5-21 Switch_1> (enable) show spantree 1/1 Port Vlan Port-State Cost 1/1 1 forwarding 19 1/1 10 forwarding 19 1/1 20 forwarding 19 1/1 30 forwarding 19 1/1 40 blocking 19 1/1 50 blocking 19 1/1 60...12 On Switch 2, change the port-VLAN priority for those VLANs on Switch 1 by entering the show spantree 1/2 Port Vlan Port-State Cost 1/2 1 blocking 19 1/2 10 blocking 19 1/2 20 blocking 19 1/2 30 blocking 19 1/2 40 forwarding 19 1/2 50 forwarding 19 ...
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...-5:Port 1/1 has become non-trunk Switch_1> (enable) show spantree 1/1 Port Vlan Port-State Cost 1/1 1 not-connected 19 Switch_1> (enable) show spantree 1/2 Port Vlan Port-State Cost 1/2 1 learning 19 1/2 10 learning 19 1/2 20 learning 19 1/2 30 learning 19 1/2...19 1/2 60 forwarding 19 1/2 1003 not-connected 19 1/2 1005 not-connected 19 Switch_1> (enable) show spantree 1/2 Port Vlan Port-State Cost 1/2 1 forwarding 19 1/2 10 forwarding 19 1/2 20 forwarding 19 1/2 30 forwarding 19 1/2 40 forwarding 19 1/2 50 forwarding 19 1/2 ...
...-5:Port 1/1 has become non-trunk Switch_1> (enable) show spantree 1/1 Port Vlan Port-State Cost 1/1 1 not-connected 19 Switch_1> (enable) show spantree 1/2 Port Vlan Port-State Cost 1/2 1 learning 19 1/2 10 learning 19 1/2 20 learning 19 1/2 30 learning 19 1/2...19 1/2 60 forwarding 19 1/2 1003 not-connected 19 1/2 1005 not-connected 19 Switch_1> (enable) show spantree 1/2 Port Vlan Port-State Cost 1/2 1 forwarding 19 1/2 10 forwarding 19 1/2 20 forwarding 19 1/2 30 forwarding 19 1/2 40 forwarding 19 1/2 50 forwarding 19 1/2 ...
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... feature for a port list, the ports do not form an EtherChannel even when set differently on the switch. Setting different port path costs does not, by the set by itself, make ports incompatible for frame distribution may provide better frame distribution than selecting MAC addresses as...ports in an EtherChannel to operate at the same speed and duplex mode. • An EtherChannel will not form with different port path costs, set spantree portcost command, can have different GARP VLAN Registration Protocol (GVRP), GARP Multicast Registration Protocol (GMRP), and quality of VLANs is...
... feature for a port list, the ports do not form an EtherChannel even when set differently on the switch. Setting different port path costs does not, by the set by itself, make ports incompatible for frame distribution may provide better frame distribution than selecting MAC addresses as...ports in an EtherChannel to operate at the same speed and duplex mode. • An EtherChannel will not form with different port path costs, set spantree portcost command, can have different GARP VLAN Registration Protocol (GVRP), GARP Multicast Registration Protocol (GMRP), and quality of VLANs is...
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... how to configure EtherChannel: • Configuring an EtherChannel, page 6-5 • Setting the EtherChannel Port Mode, page 6-5 • Setting the EtherChannel Port Path Cost, page 6-6 • Setting the EtherChannel VLAN Cost, page 6-6 • Configuring EtherChannel Frame Distribution, page 6-8 • Displaying EtherChannel Traffic Utilization, page 6-8 • Displaying Outgoing Ports for a Specified Address or Layer...
... how to configure EtherChannel: • Configuring an EtherChannel, page 6-5 • Setting the EtherChannel Port Mode, page 6-5 • Setting the EtherChannel Port Path Cost, page 6-6 • Setting the EtherChannel VLAN Cost, page 6-6 • Configuring EtherChannel Frame Distribution, page 6-8 • Displaying EtherChannel Traffic Utilization, page 6-8 • Displaying Outgoing Ports for a Specified Address or Layer...
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... on 768 Admin Port Device-ID Port-ID Platform group 20 1/1 20 1/2 066510644(cat26-lnf(NET25)) 2/1 WS-C6009 Console> (enable) Console> (enable) set the EtherChannel port path cost for each port in the channel. Warning:channel cost may not be created for channel ID 768: Console> (enable) show channel group admin_group the EtherChannel...
... on 768 Admin Port Device-ID Port-ID Platform group 20 1/1 20 1/2 066510644(cat26-lnf(NET25)) 2/1 WS-C6009 Console> (enable) Console> (enable) set the EtherChannel port path cost for each port in the channel. Warning:channel cost may not be created for channel ID 768: Console> (enable) show channel group admin_group the EtherChannel...
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... Port 3/47 VLANs 1025-4094 have path cost 16. Port 3/47 VLANs 1-1005 have path cost 19. Configure the port cost for the desired VLANs on 856 Admin Port Device-ID Port-ID Platform group 22 1/1 22 1/2 066510644(cat26-lnf(NET25)) 2/1 WS-C6009 Console> (enable) Console> (enable...) set channel vlancost 856 10 Port(s) 3/47-48 vlan cost are added to the configuration file: • set spantree portvlancost 3/47 cost 16 • set spantree portvlancost 3/48 cost 16 Now you must enter the set ...
... Port 3/47 VLANs 1025-4094 have path cost 16. Port 3/47 VLANs 1-1005 have path cost 19. Configure the port cost for the desired VLANs on 856 Admin Port Device-ID Port-ID Platform group 22 1/1 22 1/2 066510644(cat26-lnf(NET25)) 2/1 WS-C6009 Console> (enable) Console> (enable...) set channel vlancost 856 10 Port(s) 3/47-48 vlan cost are added to the configuration file: • set spantree portvlancost 3/47 cost 16 • set spantree portvlancost 3/48 cost 16 Now you must enter the set ...
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... How a Switch Becomes the Root Switch, page 8-3 • Understanding How Bridge Protocol Data Units Work, page 8-3 • Calculating and Assigning Port Costs, page 8-4 • Spanning Tree Port States, page 8-5 Understanding How a Topology is determined by defining a tree that spans all paths that are not...standby path. all of the switches in the active topology. If one network segment becomes unreachable, or if spanning tree costs change, the spanning tree algorithm reconfigures the spanning tree topology and reestablishes the link by placing redundant switch ports in STP-...
... How a Switch Becomes the Root Switch, page 8-3 • Understanding How Bridge Protocol Data Units Work, page 8-3 • Calculating and Assigning Port Costs, page 8-4 • Spanning Tree Port States, page 8-5 Understanding How a Topology is determined by defining a tree that spans all paths that are not...standby path. all of the switches in the active topology. If one network segment becomes unreachable, or if spanning tree costs change, the spanning tree algorithm reconfigures the spanning tree topology and reestablishes the link by placing redundant switch ports in STP-...
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...default settings, the switch with the lowest MAC address in a switched network might not be forced to become the root switch by changing the Port Cost parameter for the fiber-optic port to the root from the transmitting port • The identifier of the spanning tree topology. By changing the ...of the switch that has a higher number than the current root port can be ideal. Network traffic might not be the root switch • The cost of the path to a lower value than the UTP port, the fiber-optic port becomes the root port. Chapter 8 Configuring Spanning Tree Understanding How...
...default settings, the switch with the lowest MAC address in a switched network might not be forced to become the root switch by changing the Port Cost parameter for the fiber-optic port to the root from the transmitting port • The identifier of the spanning tree topology. By changing the ...of the switch that has a higher number than the current root port can be ideal. Network traffic might not be the root switch • The cost of the path to a lower value than the UTP port, the fiber-optic port becomes the root port. Chapter 8 Configuring Spanning Tree Understanding How...
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.... The short method is the default) or the long method. You can also manually assign port costs between 1 and 65535. For steps for setting the default cost mode, see the "Configuring the PVST+ Default Port Cost Mode" section on page 8-18 Note You should configure all switches in the frame to transmit data... use the short method to 200,000,000. All switches connected to the root. • A port for calculating the default port cost: the short method and the long method. The short method uses a 16-bit format that are not directly forwarded by the switch for each switch ...
.... The short method is the default) or the long method. You can also manually assign port costs between 1 and 65535. For steps for setting the default cost mode, see the "Configuring the PVST+ Default Port Cost Mode" section on page 8-18 Note You should configure all switches in the frame to transmit data... use the short method to 200,000,000. All switches connected to the root. • A port for calculating the default port cost: the short method and the long method. The short method uses a 16-bit format that are not directly forwarded by the switch for each switch ...
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...that have been forwarded using a formula that changes in bandwidth will therefore use the long method to calculate port cost. This feature works with supervisor engine software release 5.4(2) or later releases. 78-13315-02 Catalyst 6000 Family Software Configuration Guide-Releases 6.3 and 6.4 8-5... link going down (failing). The aggregated port will not result in a switched network due to the default port cost or changes resulting from the supervisor engine. When a switch port transitions directly from a 10-Gbps aggregate link). Spanning Tree Port States Topology changes can ...
...that have been forwarded using a formula that changes in bandwidth will therefore use the long method to calculate port cost. This feature works with supervisor engine software release 5.4(2) or later releases. 78-13315-02 Catalyst 6000 Family Software Configuration Guide-Releases 6.3 and 6.4 8-5... link going down (failing). The aggregated port will not result in a switched network due to the default port cost or changes resulting from the supervisor engine. When a switch port transitions directly from a 10-Gbps aggregate link). Spanning Tree Port States Topology changes can ...
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... Forward delay time 15 seconds 1. Table 8-3 PVST+ Default Configuration Feature Default Value VLAN 1 All ports assigned to 100 Mbps, the port cost is the default spanning tree mode for Catalyst 6000 family switches. Chapter 8 Configuring Spanning Tree Using PVST+ Using PVST+ PVST+ is 19.... (bridge priority plus system ID extension of VLAN 1) Port priority 32 Port cost • Gigabit Ethernet: 4 • Fast Ethernet: 191 • FDDI/CDDI: 10 • Ethernet: 1002 Default spantree port cost mode Short (802.1D) Port VLAN priority Same as port priority but configurable...
... Forward delay time 15 seconds 1. Table 8-3 PVST+ Default Configuration Feature Default Value VLAN 1 All ports assigned to 100 Mbps, the port cost is the default spanning tree mode for Catalyst 6000 family switches. Chapter 8 Configuring Spanning Tree Using PVST+ Using PVST+ PVST+ is 19.... (bridge priority plus system ID extension of VLAN 1) Port priority 32 Port cost • Gigabit Ethernet: 4 • Fast Ethernet: 191 • FDDI/CDDI: 10 • Ethernet: 1002 Default spantree port cost mode Short (802.1D) Port VLAN priority Same as port priority but configurable...
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... tree mode PVST+ Spanning tree type ieee Spanning tree enabled Designated Root 00-60-70-4c-70-00 Designated Root Priority 16384 Designated Root Cost 19 Designated Root Port 2/3 Root Max Age 14 sec Hello Time 2 sec Forward Delay 10 sec Bridge ID MAC ADDR Bridge ID Priority... Bridge Max Age 20 sec 00-d0-00-4c-18-00 30000 Hello Time 2 sec Forward Delay 15 sec Port Vlan Port-State Cost Prio Portfast Channel_id 1/1 1 not-connected 4 32 disabled 0 1/2 1 not-connected 4 32 disabled 0 2/1 1 not-connected 100 32 disabled 0 2/2 1 not-connected 100 32 disabled 0...
... tree mode PVST+ Spanning tree type ieee Spanning tree enabled Designated Root 00-60-70-4c-70-00 Designated Root Priority 16384 Designated Root Cost 19 Designated Root Port 2/3 Root Max Age 14 sec Hello Time 2 sec Forward Delay 10 sec Bridge ID MAC ADDR Bridge ID Priority... Bridge Max Age 20 sec 00-d0-00-4c-18-00 30000 Hello Time 2 sec Forward Delay 15 sec Port Vlan Port-State Cost Prio Portfast Channel_id 1/1 1 not-connected 4 32 disabled 0 1/2 1 not-connected 4 32 disabled 0 2/1 1 not-connected 100 32 disabled 0 2/2 1 not-connected 100 32 disabled 0...
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... forward frames. Chapter 8 Configuring Spanning Tree Using PVST+ Designated Root 00-60-70-4c-70-00 Designated Root Priority 16384 Designated Root Cost 19 Designated Root Port 2/3 Root Max Age 14 sec Hello Time 2 sec Forward Delay 10 sec Bridge ID MAC ADDR Bridge ID Priority... sec 00-d0-00-4c-18-00 32769 (bridge priority: 32768, sys ID ext: 1) Hello Time 2 sec Forward Delay 15 sec Port Vlan Port-State Cost Prio Portfast Channel_id 1/1 1 not-connected 4 32 disabled 0 1/2 1 not-connected 4 32 disabled 0 2/1 1 not-connected 100 32 disabled 0 2/2 1 not-connected 100 32 ...
... forward frames. Chapter 8 Configuring Spanning Tree Using PVST+ Designated Root 00-60-70-4c-70-00 Designated Root Priority 16384 Designated Root Cost 19 Designated Root Port 2/3 Root Max Age 14 sec Hello Time 2 sec Forward Delay 10 sec Bridge ID MAC ADDR Bridge ID Priority... sec 00-d0-00-4c-18-00 32769 (bridge priority: 32768, sys ID ext: 1) Hello Time 2 sec Forward Delay 15 sec Port Vlan Port-State Cost Prio Portfast Channel_id 1/1 1 not-connected 4 32 disabled 0 1/2 1 not-connected 4 32 disabled 0 2/1 1 not-connected 100 32 disabled 0 2/2 1 not-connected 100 32 ...
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... in privileged mode: Step 1 Step 2 Task Configure the PVST+ port priority for all ports have the same port cost default set. When uplinkfast is enabled, the actual cost is using a port speed of switch ports in your network is using PVST+ spanning tree mode, all the ports ...port priority of 10 Gb or over and the network is incremented by 3000 • The long mode has these parameters: - Portcost - Two default port cost modes are available-short and long. • The short mode has these parameters: - Using PVST+ Chapter 8 Configuring Spanning Tree 2/4 1 not-connected ...
... in privileged mode: Step 1 Step 2 Task Configure the PVST+ port priority for all ports have the same port cost default set. When uplinkfast is enabled, the actual cost is using a port speed of switch ports in your network is using PVST+ spanning tree mode, all the ports ...port priority of 10 Gb or over and the network is incremented by 3000 • The long mode has these parameters: - Portcost - Two default port cost modes are available-short and long. • The short mode has these parameters: - Using PVST+ Chapter 8 Configuring Spanning Tree 2/4 1 not-connected ...
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...channel. This example shows how to use the set to configure the PVST+ port VLAN cost on port 2/3 for calculating port cost and from 1 to short in privileged mode: Task Configure the PVST+ port cost for a VLAN on page 8-4. This parameter applies to slower media. Command set to... forward frames. The command causes a "set spantree portcost" entry to be set spantree portvlancost {mod/port} [cost cost] [vlan_list] Note When you use long format default values. Assign lower numbers to ports that are attached to faster media (such as full duplex...
...channel. This example shows how to use the set to configure the PVST+ port VLAN cost on port 2/3 for calculating port cost and from 1 to short in privileged mode: Task Configure the PVST+ port cost for a VLAN on page 8-4. This parameter applies to slower media. Command set to... forward frames. The command causes a "set spantree portcost" entry to be set spantree portvlancost {mod/port} [cost cost] [vlan_list] Note When you use long format default values. Assign lower numbers to ports that are attached to faster media (such as full duplex...