Creates the VLAN.

Switch(config)# vlan vlan_ID

Step 2 
Selects an interface to configure.

Switch(config)# interface vlan vlan_ID

Step 3 
Configures the IP address and IP subnet.

Switch(config-if)# ip address ip_address subnet_mask 

Step 4 
Enables the interface.

Switch(config-if)# no shutdown