Status of a Cisco Router Interface

If you want to look the current status of any of interface of the router, you can use show interfaces command on routers hash mode. With the help of this command, you can view the status of all the interfaces on router.

Freetechexams#Show Interfaces


If you want to check the status of a particular interface, use the following command

Freetechexams #show interfaces FastEthernet0/1


If you want to check the IP configurations of router interfaces:

Freetechexams #show ip interface brief


And, if you want to check the IP configurations of a specific interface of a router:

Freetechexams #show ip interface FastEthernet0/1

In the output of Show interfaces command, first line is very important

FastEthernet0/1 is up, line protocol is up
Serial0/0 is up, line protocol is up

This explains that interface is operational.