VSS (Virtual Switching System) is use to bundle two 6500/4500 series switches and use as an single logical device. VSS configuration is pretty simple. You can see the below example.
Once VSS configuration is complete, One switch elects as an active and another one as standby.
Active switch handles all layer 2 and layer 2 control protocols, VSS management functions
Switch-1# conf t
Switch-1(config)# switch virtual domain 10
Switch-1(config-vs-domain)# switch 1
Switch-1(config-vs-domain)# exit
Switch-1(config)# interface port-channel 5
Switch-1(config-if)# switchport
Switch-1(config-if)# switch virtual link 1
Switch-1(config-if)# no shut
Switch-1(config)# interface range g7/3-4
Switch-1(config-if-range)# switchport mode trunk
Switch-1(config-if-range)# channel-group 5 mode on
Switch-2# conf t
Switch-2(config)# switch virtual domain 10
Switch-2(config-vs-domain)# switch 2
Switch-2(config-vs-domain)# exit
Switch-2(config)# interface port-channel 15
Switch-2(config-if)# switchport
Switch-2(config-if)# switch virtual link 2
Switch-2(config-if)# no shut
Switch-2(config)# interface range g4/45-46
Switch-2(config-if-range)# switchport mode trunk
Switch-2(config-if-range)# channel-group 15 mode onThanks For Reading ………….
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