1-8z The control VLAN configured for a smart link group must be different from that configured for anyother smart link group.z Make sure that the configured control VLAN already exists, and assign the smart link groupmember ports to the control VLAN.z The control VLAN of a smart link group should also be one of its protected VLANs. Do not removethe control VLAN. Otherwise, flush messages cannot be sent properly.Smart Link Device Configuration ExampleNetwork requirementsz Create smart link group 1.z The protected VLANs of smart link group 1 are mapped to MSTI 0 through 8.z Configure GigabitEthernet 1/0/1 as the master port of the smart link group, and GigabitEthernet1/0/2 as the slave port.z Configure VLAN 20 for flush update.Configuration procedure 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
