Reference Guide

port-channel failover-group
2. Create a failover group and specify the two port-channels that will be members of the group.
CONFIG-PO-FAILOVER-GRP mode
group number port-channel number port-channel number
In the following example, LAGs 1 and 2 have been placed into to the same failover group.
Example of LAGs in the Same Failover Group
R2#config
R2(conf)#port-channel failover-group
R2(conf-po-failover-grp)#group 1 port-channel 1 port-channel 2
To view the failover group configuration, use the show running-configuration po-failover-group
command.
Example of Viewing the Failover Group Configuration
R2#show running-config po-failover-group
!
port-channel failover-group
group 1 port-channel 1 port-channel 2
As shown in the following illustration, LAGs 1 and 2 are members of a failover group. LAG 1 fails and LAG 2 is brought
down after the failure. This effect is logged by Message 1, in which a console message declares both LAGs down at the
same time.
Figure 60. Configuring Shared LAG State Tracking
The following are shared LAG state tracking console messages:
• 2d1h45m: %RPM0-P:CP %IFMGR-5-OSTATE_DN: Changed interface state to down:
Po 1
• 2d1h45m: %RPM0-P:CP %IFMGR-5-OSTATE_DN: Changed interface state to down:
Po 2
To view the status of a failover group member, use the show interface port-channel command.
Example of Viewing Failover Group Member Status
R2#show interface port-channel 2
Port-channel 2 is up, line protocol is down (Failover-group 1 is down)
Hardware address is 00:01:e8:05:e8:4c, Current address is 00:01:e8:05:e8:4c
Interface index is 1107755010
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