H3C Technologies H3C S10500 Series Switches - Manual (Page 126)

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[DeviceD-GigabitEthernet1/0/1] smart-link flush enable control-vlan 10 110
[DeviceD-GigabitEthernet1/0/1] quit
# Configure GigabitEthernet 1/0/2 as a trunk port and assign it to VLANs 1 through 200. Disable the
spanning tree feature and enable flush message receiving on it, and configure VLAN 10 and VLAN 110
as the receive control VLANs.
[DeviceD] interface gigabitethernet 1/0/2
[DeviceD-GigabitEthernet1/0/2] port link-type trunk
[DeviceD-GigabitEthernet1/0/2] port trunk permit vlan 1 to 200
[DeviceD-GigabitEthernet1/0/2] undo stp enable
[DeviceD-GigabitEthernet1/0/2] smart-link flush enable control-vlan 10 110
[DeviceD-GigabitEthernet1/0/2] quit
5. Verify 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
-----------------------------------------------------------------------------
GigabitEthernet1/0/1 MASTER DOWN 5 16:37:20 2010/02/21
GigabitEthernet1/0/2 SLAVE ACTVIE 3 17:45:20 2010/02/21
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
-----------------------------------------------------------------------------
GigabitEthernet1/0/2 MASTER ACTVIE 5 16:37:20 2010/02/21
GigabitEthernet1/0/1 SLAVE STANDBY 1 17:45:20 2010/02/21
The output shows that master port GigabitEthernet 1/0/1 of smart link group 1 fails, and slave port
GigabitEthernet 1/0/2 is in forwarding state.