I have one 7202 VXR router which have 1 T1 controller(8 port) and Serial controller (4 port).
On T1 controller 4 out of 8 ports are working fine running diffrent T1/FR lines.remaining ports i am trying to test with new T1 lines. but some how its alwsy showing "down " down" i tried with serial and its working but with T1 controller I can t make it work.
Is there any way I can identify these T1 controller ports are faulty? Please help