Cisco Gigabit Ethernet Switch Module for HP p-Class BladeSystem Software Configuration Guide

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Chapter 28 Configuring EtherChannels and Layer 2 Trunk Failover

Understanding Layer 2 Trunk Failover

Note If the interfaces are part of an EtherChannel, you must specify the port channel name as part of the

link-state group, not the individual port members.

This example shows how to create a link-state group using ports in an EtherChannel:

Switch# configure terminal

Switch(config)# link state track 1

Switch(config)# interface P01

Switch(config-if)# link state group 1 upstream

Switch(config-if-range)# interface range gigabitethernet0/1, gigabitethernet0/3,

gigabitethernet0/5

Switch(config-if)# link state group 1 downstream

Switch(config-if)# end

To disable a link-state group, use the no link state track number global configuration command.

Displaying Layer 2 Trunk Failover Status

Use the show link state group command to display the link-state group information. Enter this

command without keywords to display information about all link-state groups. Enter the group number

to display information specific to the group. Enter the detail keyword to display detailed information

about the group.

This is an example of output from the show link state group 1 command:

Switch> show link state group 1

Link State Group: 1 Status: Enabled, Up

This is an example of output from the show link state group detail command:

Switch> show link state group detail

Link State Group: 1 Status: Enabled, Up

Upstream Interfaces : Po1(Up)

Downstream Interfaces : Gi0/3(Up) Gi0/4(Up)

Link State Group: 2 Status: Disabled, Down

Upstream Interfaces :

Downstream Interfaces :

(Up):Interface up (Dwn):Interface Down (Dis):Interface disabled

For detailed information about the fields in the display, see the command reference for this release.