Whats VLAN?

VLAN is acronym of Virtual Local Area Network. It logically divides your local networks into several pieces so that provides better administrating network subnets and also safer securities

Checking VLAN status

show vlan

Check VLAN status brief

show vlan brief

Changing VLAN status

SW1#configure terminal #aka conf t
SW1(config)#interface GigabitEthernet0/1
SW1(config)#switchmode access vlan (VLAN number)
SW1(config)#end
SW1#wr