When you access Interface Configuration mode, you specify the interface to configure.
SEFOS(config)# interface interface-type 0/port
where:
interface-type is either gigabitethernet for the 1GbE RJ-45 ports or extreme-ethernet for the 10GbE SFP+ uplink ports.
port is the port number printed near the connector.
For example, to access Interface Configuration mode for port 3, which is a 1GbE RJ-45 port, type:
SEFOS(config)# interface gigabitethernet 0/3 SEFOS(config-if)#
You are now in Interface Configuration mode for port 3.
When you are finished, exit Interface Configuration mode.
SEFOS(config-if)# exit SEFOS(config)#