1-7 
Network diagram 
Figure 1-3 Network diagram for Smart Link configuration  
 
 
 
Configuration procedure 
1)  Configure a smart link group on Switch A and configure member ports for it. Enable the function of 
sending flush messages in Control VLAN 1. 
# Enter system view.  
<switchA> system-view 
# Enter Ethernet port view. Disable STP on GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2.  
[SwitchA] interface GigabitEthernet 1/0/1 
[SwitchA-GigabitEthernet1/0/1] stp disable 
[SwitchA-GigabitEthernet1/0/1] quit 
[SwitchA] interface GigabitEthernet 1/0/2 
[SwitchA-GigabitEthernet1/0/2] stp disable 
# Return to system view. 
[SwitchA-GigabitEthernet1/0/2] quit 
# Create smart link group 1 and enter the corresponding smart link group view.  
[SwitchA] smart-link group 1 
# Configure GigabitEthernet 1/0/1 as the master port and GigabitEthernet 1/0/2 as the slave port for 
smart link group 1.  
[SwitchA-smlk-group1] port GigabitEthernet 1/0/1 master 
[SwitchA-smlk-group1] port GigabitEthernet 1/0/2 slave 
# Configure to send flush messages within VLAN 1.  
[SwitchA-smlk-group1] flush enable control-vlan 1 
2)  Enable the function of processing flush messages received from VLAN 1 on Switch C.