Most likely the modem is looped not the router. Seems like there is a loopback command but you would see it in the config. The router can detect the modem loop because it sees its own keepalive come back as input. Look at the modems. Some have status lights indicating loopback is set others just have a test light (TS?). Some csu's and I guess some modems have local and remote loopback buttons. If you dont find anything on the modems or if it keeps coming back when you reset the modems contact the carrier. They issue remote loopback commands when they are testing (as in during an install). Sometimes they leave the signal on and it will continually put the circuit into loopback.
Question We run asr9001 with XR 6.1.3, and we have a very long delay to
login w/ SSH 1 or 2 to the device compare to IOS device. After
investigation, the there is 1s delay between the client KEXDH_INIT and
the server (XR) KEXDH_REPLY. After debug ssh serv...
Introduction The purpose of this document is to demonstrate the Open
Shortest Path First (OSPF) behavior when the V-bit (Virtual-link bit) is
present in a non-backbone area. The V-bit is signaled in Type-1 LSA only
if the router is the endpoint of one or ...
Hi, I am seeing quite a few issues with patch install and wanted to
share my experience and workaround to this. Login to admin via CLI, then
access root with the “shell” command Issue “df –h” and you’ll probably
see the following directory full or nearly ...