Smart Link Device Configuration Example - H3C S5120-EI Series Operation Manual

The control VLAN configured for a smart link group must be different from that configured for any
other smart link group.
Make sure that the configured control VLAN already exists, and assign the smart link group
member ports to the control VLAN.
The control VLAN of a smart link group should also be one of its protected VLANs. Do not remove
the control VLAN. Otherwise, flush messages cannot be sent properly.

Smart Link Device Configuration Example

Network requirements
Create smart link group 1.
The protected VLANs of smart link group 1 are mapped to MSTI 0 through 8.
Configure GigabitEthernet 1/0/1 as the master port of the smart link group, and GigabitEthernet
1/0/2 as the slave port.
Configure VLAN 20 for flush update.
Configuration procedure
<Sysname> system-view
[Sysname] vlan 20
[Sysname-vlan20] quit
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] undo stp enable
[Sysname-GigabitEthernet1/0/1] port link-type trunk
[Sysname-GigabitEthernet1/0/1] port trunk permit vlan 20
[Sysname-GigabitEthernet1/0/1] quit
[Sysname] interface gigabitethernet 1/0/2
[Sysname-GigabitEthernet1/0/2] undo stp enable
[Sysname-GigabitEthernet1/0/2] port link-type trunk
[Sysname-GigabitEthernet1/0/2] port trunk permit vlan 20
[Sysname-GigabitEthernet1/0/2] quit
[Sysname] smart-link group 1
[Sysname-smlk-group1] protected-vlan reference-instance 0 to 8
[Sysname-smlk-group1] port gigabitethernet 1/0/1 master
[Sysname-smlk-group1] port gigabitethernet 1/0/2 slave
[Sysname-smlk-group1] flush enable control-vlan 20
[Sysname-smlk-group1] quit
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