no switchport

		
Switch# configure terminal

Enter configuration commands, one per line.  End with CNTL/Z.
Switch(config)# interface gigabitethernet0/2

Switch(config-if)# no switchport

Switch(config-if)# ip address 192.20.135.21 255.255.255.0

Switch(config-if)# no shutdown

Switch(config-if)# end