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... P T E R 6 C H A P T E R 78-15486-01 Configuring Gigabit Ethernet Switching 5-1 Understanding How Gigabit Ethernet Works 5-1 Understanding How Gigabit Ethernet Flow Control Works 5-1 Understanding How Port Negotiation... the EtherChannel Spanning Tree Port VLAN Cost 6-9 Removing an EtherChannel Bundle 6-9 Displaying EtherChannel Configuration Information 6-10 Displaying EtherChannel Traffic Statistics 6-11 Displaying EtherChannel PAgP Statistics 6-12 EtherChannel Configuration Examples 6-12 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 v
... P T E R 6 C H A P T E R 78-15486-01 Configuring Gigabit Ethernet Switching 5-1 Understanding How Gigabit Ethernet Works 5-1 Understanding How Gigabit Ethernet Flow Control Works 5-1 Understanding How Port Negotiation... the EtherChannel Spanning Tree Port VLAN Cost 6-9 Removing an EtherChannel Bundle 6-9 Displaying EtherChannel Configuration Information 6-10 Displaying EtherChannel Traffic Statistics 6-11 Displaying EtherChannel PAgP Statistics 6-12 EtherChannel Configuration Examples 6-12 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 v
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...Catalyst enterprise LAN switches. Using the Command-Line Interface Describes how to configure Fast EtherChannel and and Gigabit EtherChannel Gigabit EtherChannel port bundles. Configuring Fast EtherChannel Describes how to use the different command-line interfaces (CLIs). Configuring Ethernet and Fast Ethernet Switching... spanning tree works. Filter, UplinkFast, BackboneFast, and Loop Guard 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 xxiii Audience This publication is for experienced network administrators who...
...Catalyst enterprise LAN switches. Using the Command-Line Interface Describes how to configure Fast EtherChannel and and Gigabit EtherChannel Gigabit EtherChannel port bundles. Configuring Fast EtherChannel Describes how to use the different command-line interfaces (CLIs). Configuring Ethernet and Fast Ethernet Switching... spanning tree works. Filter, UplinkFast, BackboneFast, and Loop Guard 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 xxiii Audience This publication is for experienced network administrators who...
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... EtherChannel trunk link providing 2-Gbps bandwidth. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-5 These configurations are shown: • Server A, equipped with quick failover for each connected port (500 Mbps total) in each oversubscribed port group and can bundle multiple oversubscribed ports into a Gigabit EtherChannel link to connect...
... EtherChannel trunk link providing 2-Gbps bandwidth. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-5 These configurations are shown: • Server A, equipped with quick failover for each connected port (500 Mbps total) in each oversubscribed port group and can bundle multiple oversubscribed ports into a Gigabit EtherChannel link to connect...
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... all Gigabit Ethernet ports (auto mode) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-6 78-15486-01 Default Gigabit Ethernet Configuration Chapter 5 Configuring Gigabit Ethernet Switching Figure 5-1 Example of a Server Switching Network Topology Network backbone Backbone switch CAUTION THIS ASSEMBLY CONTAINS ELECTROSTATICSENSITIVE DEVICES 0% 100% 18069 Gigabit EtherChannel bundles Server A Server B Workstation 1 Workstation 3 Server D Workstation...
... all Gigabit Ethernet ports (auto mode) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-6 78-15486-01 Default Gigabit Ethernet Configuration Chapter 5 Configuring Gigabit Ethernet Switching Figure 5-1 Example of a Server Switching Network Topology Network backbone Backbone switch CAUTION THIS ASSEMBLY CONTAINS ELECTROSTATICSENSITIVE DEVICES 0% 100% 18069 Gigabit EtherChannel bundles Server A Server B Workstation 1 Workstation 3 Server D Workstation...
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... to configure Fast EtherChannel and Gigabit EtherChannel port bundles on installing Catalyst 4500 series Fast Ethernet and Gigabit Ethernet modules, refer to the Catalyst 4500 Series Installation Guide. Note For complete syntax and usage information for EtherChannel, page 6-2 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-1 The configuration procedures in...
... to configure Fast EtherChannel and Gigabit EtherChannel port bundles on installing Catalyst 4500 series Fast Ethernet and Gigabit Ethernet modules, refer to the Catalyst 4500 Series Installation Guide. Note For complete syntax and usage information for EtherChannel, page 6-2 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-1 The configuration procedures in...
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...previously carried over the failed port switches to form a channel through dynamic negotiation with adjoining switches. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 You can configure both Fast and Gigabit EtherChannel bundles as an EtherChannel. Note MAC... In addition, on page 6-16. To use LACP, see the "Understanding the PAgP" section on Cisco switches and those switches released by the spanning tree feature, the maximum supported number of each frame. Hardware Support for a 6-slot chassis....
...previously carried over the failed port switches to form a channel through dynamic negotiation with adjoining switches. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 You can configure both Fast and Gigabit EtherChannel bundles as an EtherChannel. Note MAC... In addition, on page 6-16. To use LACP, see the "Understanding the PAgP" section on Cisco switches and those switches released by the spanning tree feature, the maximum supported number of each frame. Hardware Support for a 6-slot chassis....
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... not form a channel with any port. In addition to configure an EtherChannel bundle using PAgP: • Creating an EtherChannel, page 6-7 • Defining an...Setting the EtherChannel Spanning Tree Port VLAN Cost, page 6-9 • Removing an EtherChannel Bundle, page 6-9 • Displaying EtherChannel Configuration Information, page 6-10 • Displaying ...not saved in NVRAM and remain the same after the switch is reset or power cycled. An administrative group can define... is torn down and renegotiated, or if the switch is automatically assigned a unique EtherChannel ID. Configuring ...
... not form a channel with any port. In addition to configure an EtherChannel bundle using PAgP: • Creating an EtherChannel, page 6-7 • Defining an...Setting the EtherChannel Spanning Tree Port VLAN Cost, page 6-9 • Removing an EtherChannel Bundle, page 6-9 • Displaying EtherChannel Configuration Information, page 6-10 • Displaying ...not saved in NVRAM and remain the same after the switch is reset or power cycled. An administrative group can define... is torn down and renegotiated, or if the switch is automatically assigned a unique EtherChannel ID. Configuring ...
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...can configure as an EtherChannel, verify the EtherChannel capabilities for the module or switch you are assigned to forwarding mode). 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-7 Create an EtherChannel with the auto and... Configuring EtherChannel Using PAgP Creating an EtherChannel You create an EtherChannel port bundle by hardware restrictions. Command show port channel [port_list] This example shows how to create an EtherChannel bundle and verify the configuration: Console> (enable) set to be any ...
...can configure as an EtherChannel, verify the EtherChannel capabilities for the module or switch you are assigned to forwarding mode). 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-7 Create an EtherChannel with the auto and... Configuring EtherChannel Using PAgP Creating an EtherChannel You create an EtherChannel port bundle by hardware restrictions. Command show port channel [port_list] This example shows how to create an EtherChannel bundle and verify the configuration: Console> (enable) set to be any ...
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...cost for show channel group admin_group which you set the port VLAN cost. Verify the configuration. Console> (enable) Removing an EtherChannel Bundle To return a Fast EtherChannel or Gigabit EtherChannel bundle to its default configuration, perform this task in privileged mode: Step 1 Step 2 Task Command Return a channel to its default... port VLAN cost provides an alternate cost for channel ID 768: Console> (enable) show port channel [mod_num[/port_num]] 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-9
...cost for show channel group admin_group which you set the port VLAN cost. Verify the configuration. Console> (enable) Removing an EtherChannel Bundle To return a Fast EtherChannel or Gigabit EtherChannel bundle to its default configuration, perform this task in privileged mode: Step 1 Step 2 Task Command Return a channel to its default... port VLAN cost provides an alternate cost for channel ID 768: Console> (enable) show port channel [mod_num[/port_num]] 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-9
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... PAgP statistics by EtherChannel administrative group. Figure 6-1 shows two switches connected through four 100BASE-TX Fast Ethernet ports. 6-12 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Configuration Example of configuring VLAN trunks on EtherChannel port bundles, see the "Example VLAN Trunk Configurations" section on page 11...by EtherChannel administrative group: Console> show channel [admin_group] statistics This example shows how to configure a four-port Fast EtherChannel link between two switches.
... PAgP statistics by EtherChannel administrative group. Figure 6-1 shows two switches connected through four 100BASE-TX Fast Ethernet ports. 6-12 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Configuration Example of configuring VLAN trunks on EtherChannel port bundles, see the "Example VLAN Trunk Configurations" section on page 11...by EtherChannel administrative group: Console> show channel [admin_group] statistics This example shows how to configure a four-port Fast EtherChannel link between two switches.
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... modified. VLAN 1 modified. Switch_B> (enable) Confirm the channeling status of the EtherChannel bundle. Switch_A> (enable) set port channel 1/1-4 desirable Port(s) 1/1-4 channel mode set to desirable. Switch_A> (enable) %PAGP-5-PORTFROMSTP:Port 1/1 left bridge port 1/1 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-13 VLAN Mod/Ports 50 3/1-4 Switch_B> (enable...
... modified. VLAN 1 modified. Switch_B> (enable) Confirm the channeling status of the EtherChannel bundle. Switch_A> (enable) set port channel 1/1-4 desirable Port(s) 1/1-4 channel mode set to desirable. Switch_A> (enable) %PAGP-5-PORTFROMSTP:Port 1/1 left bridge port 1/1 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-13 VLAN Mod/Ports 50 3/1-4 Switch_B> (enable...
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...to configure a two-port Gigabit EtherChannel link between two switches. Figure 6-2 shows two switches connected through four 1000BASE-SX Gigabit Ethernet ports. 6-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 EtherChannel ...3/1-4 %PAGP-5-PORTTOSTP:Port 3/3 joined bridge port 3/1-4 %PAGP-5-PORTTOSTP:Port 3/4 joined bridge port 3/1-4 After the EtherChannel bundle is negotiated, enter the show port channel Port Status Channel Channel Neighbor Neighbor mode status device port 3/1 connected auto...
...to configure a two-port Gigabit EtherChannel link between two switches. Figure 6-2 shows two switches connected through four 1000BASE-SX Gigabit Ethernet ports. 6-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 EtherChannel ...3/1-4 %PAGP-5-PORTTOSTP:Port 3/3 joined bridge port 3/1-4 %PAGP-5-PORTTOSTP:Port 3/4 joined bridge port 3/1-4 After the EtherChannel bundle is negotiated, enter the show port channel Port Status Channel Channel Neighbor Neighbor mode status device port 3/1 connected auto...
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...port 3/2 %PAGP-5-PORTTOSTP:Port 3/1 joined bridge port 3/1-2 %PAGP-5-PORTTOSTP:Port 3/2 joined bridge port 3/1-2 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-15 Switch_B> (enable) %PAGP-5-PORTFROMSTP:Port 3/1 left bridge port 3/1 %PAGP-5-PORTFROMSTP:Port... Gigabit EtherChannel EtherChannel Configuration Examples Figure 6-2 Example of the EtherChannel bundle on. The switches will not negotiate an EtherChannel port bundle automatically in on Switch A and Switch B have the same port configuration, such as on for all...
...port 3/2 %PAGP-5-PORTTOSTP:Port 3/1 joined bridge port 3/1-2 %PAGP-5-PORTTOSTP:Port 3/2 joined bridge port 3/1-2 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-15 Switch_B> (enable) %PAGP-5-PORTFROMSTP:Port 3/1 left bridge port 3/1 %PAGP-5-PORTFROMSTP:Port... Gigabit EtherChannel EtherChannel Configuration Examples Figure 6-2 Example of the EtherChannel bundle on. The switches will not negotiate an EtherChannel port bundle automatically in on Switch A and Switch B have the same port configuration, such as on for all...
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...6-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Table 6-2 EtherChannel Modes That Use LACP Mode on page 6-5. Understanding the LACP Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel Step 4 After the EtherChannel bundle is ...EtherChannel configuration with LACP, you want LACP to verify the configuration. Spanning tree loops can occur, and eventually the switch will pass over the EtherChannel. Switch_A> (enable) show port channel Port Status Channel Channel Neighbor Neighbor mode status ...
...6-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Table 6-2 EtherChannel Modes That Use LACP Mode on page 6-5. Understanding the LACP Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel Step 4 After the EtherChannel bundle is ...EtherChannel configuration with LACP, you want LACP to verify the configuration. Spanning tree loops can occur, and eventually the switch will pass over the EtherChannel. Switch_A> (enable) show port channel Port Status Channel Channel Neighbor Neighbor mode status ...
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...aggregate link (for example, if a 10-Mbps link is to the recalculation of little consequence to propagate through the switches in changes to 200000000 Calculating the Port Cost for Aggregate Links As individual links are assigned by 200,000,000. ...in one of the aggregate link increases or decreases. When a switch port transitions directly from an aggregate link (port bundle), the bandwidth of these states: • Blocking 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-5 Chapter 7 Configuring Spanning Tree ...
...aggregate link (for example, if a 10-Mbps link is to the recalculation of little consequence to propagate through the switches in changes to 200000000 Calculating the Port Cost for Aggregate Links As individual links are assigned by 200,000,000. ...in one of the aggregate link increases or decreases. When a switch port transitions directly from an aggregate link (port bundle), the bandwidth of these states: • Blocking 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-5 Chapter 7 Configuring Spanning Tree ...
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...When you must have the same pathcost default set a cost value from 1- 65535. 7-26 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Ports with all switches in the network must set to forward frames. You can configure the port cost for different ...port on a per-VLAN basis. Console> (enable) Configuring the PVST+ Port VLAN Cost You can set . For port speeds of a bundle using PVST+ spanning tree mode, all the ports to have the same path cost defaults. There are attached to long. EtherChannel computes the...
...When you must have the same pathcost default set a cost value from 1- 65535. 7-26 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Ports with all switches in the network must set to forward frames. You can configure the port cost for different ...port on a per-VLAN basis. Console> (enable) Configuring the PVST+ Port VLAN Cost You can set . For port speeds of a bundle using PVST+ spanning tree mode, all the ports to have the same path cost defaults. There are attached to long. EtherChannel computes the...
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Note For complete information on a Fast or Gigabit EtherChannel bundle. Trunking Overview A trunk is a point-to-point link between one or more information about Fast and Gigabit EtherChannel, see Chapter 10, "Configuring...a single Fast or Gigabit Ethernet port or on configuring VLANs, see Chapter 6, "Configuring Fast EtherChannel and Gigabit EtherChannel." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-1 Note For complete syntax and usage information for the commands used in this chapter, refer to extend ...
Note For complete information on a Fast or Gigabit EtherChannel bundle. Trunking Overview A trunk is a point-to-point link between one or more information about Fast and Gigabit EtherChannel, see Chapter 10, "Configuring...a single Fast or Gigabit Ethernet port or on configuring VLANs, see Chapter 6, "Configuring Fast EtherChannel and Gigabit EtherChannel." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-1 Note For complete syntax and usage information for the commands used in this chapter, refer to extend ...
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...1Q Trunk over a Gigabit EtherChannel link between switches and routers, refer to the Layer 3 Switching Software Configuration Guide-Catalyst 5000 Family, 4000 Family, 2926G Series, 2926 Series, 2948G, and 2980G Switches publication. 802.1Q Trunk over a Gigabit EtherChannel...) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-9 To configure the switches to form a four-port Gigabit EtherChannel bundle, and then configure the EtherChannel bundle as members of configuring trunk links between two switches with 802.1Q-capable...
...1Q Trunk over a Gigabit EtherChannel link between switches and routers, refer to the Layer 3 Switching Software Configuration Guide-Catalyst 5000 Family, 4000 Family, 2926G Series, 2926 Series, 2948G, and 2980G Switches publication. 802.1Q Trunk over a Gigabit EtherChannel...) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-9 To configure the switches to form a four-port Gigabit EtherChannel bundle, and then configure the EtherChannel bundle as members of configuring trunk links between two switches with 802.1Q-capable...
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...3/3-6 After the 802.1Q trunk link is applied to all of the ports in management domain 11-10 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 The configuration is negotiated, enter the show trunk Port Mode ... 2/6 Vlans allowed on trunk 1-1005, 1025-4094 1-1005, 1025-4094 1-1005, 1025-4094 1-1005, 1025-4094 Port Vlans allowed and active in the bundle. Port(s) 2/3-6 trunk type set vlan 1 3/3-6 VLAN Mod/Ports 1 3/3-6 Switch_B> (enable) Configure one of the 802.1Q trunk. The system logging...
...3/3-6 After the 802.1Q trunk link is applied to all of the ports in management domain 11-10 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 The configuration is negotiated, enter the show trunk Port Mode ... 2/6 Vlans allowed on trunk 1-1005, 1025-4094 1-1005, 1025-4094 1-1005, 1025-4094 1-1005, 1025-4094 Port Vlans allowed and active in the bundle. Port(s) 2/3-6 trunk type set vlan 1 3/3-6 VLAN Mod/Ports 1 3/3-6 Switch_B> (enable) Configure one of the 802.1Q trunk. The system logging...
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... not pruned 3/3 1-1005, 1025-4094 3/4 1-1005, 1025-4094 3/5 1-1005, 1025-4094 3/6 1-1005, 1025-4094 Switch_B> (enable) Confirm the channeling and trunking status of the EtherChannel bundle. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-11 The system logging messages provide information about the formation of the...
... not pruned 3/3 1-1005, 1025-4094 3/4 1-1005, 1025-4094 3/5 1-1005, 1025-4094 3/6 1-1005, 1025-4094 Switch_B> (enable) Confirm the channeling and trunking status of the EtherChannel bundle. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-11 The system logging messages provide information about the formation of the...