H3C S5120-EI Series - Multiple Smart Link Groups Load Sharing Configuration Example

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[DeviceA] interface gigabitethernet 1/0/2
[DeviceA-GigabitEthernet1/0/2] port link-type trunk
[DeviceA-GigabitEthernet1/0/2] port trunk permit vlan 1 to 30
[DeviceA-GigabitEthernet1/0/2] smart-link flush enable control-vlan 10 20
[DeviceA-GigabitEthernet1/0/2] quit
6. Verify the configuration:
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 1
Smart link group 1 information:
Device ID: 000f-e23d-5af0
Preemption mode: NONE
Preemption delay: 1(s)
Control VLAN: 10
Protected VLAN: Reference Instance 1
Member Role State Flush-count Last-flush-time
-----------------------------------------------------------------------------
GigabitEthernet1/0/1 MASTER ACTVIE 5 16:37:20 2013/02/21
GigabitEthernet1/0/2 SLAVE STANDBY 1 17:45:20 2013/02/21
You can use the display smart-link flush command to display the flush messages received on a
device.
# Display the flush messages received on Device B.
[DeviceB] display smart-link flush
Received flush packets : 5
Receiving interface of the last flush packet : GigabitEthernet1/0/3
Receiving time of the last flush packet : 16:25:21 2013/02/21
Device ID of the last flush packet : 000f-e23d-5af0
Control VLAN of the last flush packet : 10
Multiple smart link groups load sharing configuration example
Network requirements
As shown in Figure 24, Device C is a smart link device, and Device A, Device B, and Device D are
associated devices. Traffic of VLANs 1 through 200 on Device C are dually uplinked to Device A by
Device B and Device D.
Implement dual uplink backup and load sharing on Device C: traffic of VLANs 1 through 100 is uplinked
to Device A by Device B; traffic of VLANs 101 through 200 is uplinked to Device A by Device D.