Hi,I am seeing the following status on T1 controller after test the circuit with carrier. But the serial interface show up. What does this means? why the controller showing the loop statusRouter>show controllers t1 1/1 briefT1 1/1 is up. (Line looped...

Dear All,i am looking for a command which can tell me all the ifindex assigned to interface in router. i know that there is one command in catos show ifindex but i couldn't find the similar command in router.please help.thanks