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Verifying the configuration
Suppose the optical fiber between Device A and Device B fails. You can use the display smart-link
group command to display the smart link group configuration on a device.
# Display the smart link group configuration on Device C.
[DeviceC] display smart-link group all
Smart link group 1 information:
Device ID : 000f-e23d-5af0
Preemption mode : ROLE
Preemption delay: 1(s)
Control VLAN : 10
Protected VLAN : Reference Instance 1
Member Role State Flush-count Last-flush-time
-----------------------------------------------------------------------------
XGE1/0/1 PRIMARY DOWN 5 16:45:20 2014/04/21
XGE1/0/2 SECONDARY ACTIVE 1 16:37:20 2014/04/21
Smart link group 2 information:
Device ID : 000f-e23d-5af0
Preemption mode : ROLE
Preemption delay: 1(s)
Control VLAN : 110
Protected VLAN : Reference Instance 2
Member Role State Flush-count Last-flush-time
-----------------------------------------------------------------------------
XGE1/0/2 PRIMARY ACTIVE 5 16:45:20 2014/04/21
XGE1/0/1 SECONDARY STANDBY 1 16:37:20 2014/04/21
The output shows that primary port Ten-GigabitEthernet 1/0/1 of smart link group 1 fails, and
secondary port Ten-GigabitEthernet 1/0/2 is in forwarding state.