I have a 1760 Series Router with a Serial Interface that randomly goes up and down. According to our provider, they can find nothing wrong with the line.
It is configured with a single Ethernet WIC (E0), and a single WAN Wic Card (S0). Configurations have been checked and work well when card is up.
My question is shouldn't I be able to ping from one interface of the router to the other interface if the cards are functioning properly? ( from ethernet to serial?
When the system is down, I can telnet into the Ethernet port, but cannot ping to the WAN card in the same chassis?
I am assuming this is an error?
Thanks for any guidance....