HiI have Cisco Catalyst 5505 Chasis. In first slot I connected ws-x5540 Sup Engine. But when I am starting switch, I am getting only below information.ATE0ATS0=1ROM Power Up Diagnostics of Apr 20 1999Init NVRAM LogLED Test ................... doneRO...

My network is very huge network. In this network there are somewhere network loop.which cause shutdown of uplink ports.How to find out these network loop?& what is solution to prevent shutdown of uplink port? Pls Suggest.

how to configure ASM 20 modem as my existing modem was burned