We have 2 sites 2610XM routers connected to each other via G.703 E1 controllers. The ISP provides us with 2MB E1 (unchannelized) links.
For some reason the customer wants to bridge the connection to use the same subnet in the 2 sites.
The configuration was done and I created a BVI for each router. This was successfully tested in the lab by connecting the 2 routers directly via crossed E1 BNC cables.
The problem appeared when each router was conneted in the sites. The connection is very waek with bad response times and missing pings (sometimes 2,3 out of 4 pings). I am able to telnet to the remote router but the session is very choppy with lots of delays. I didnt find errors in the E1 counters, although there are some interface resets.
Is it safe to conclude that the issue is probably faulty cabling, perhaps the ISP fiber backbone? Can a configuration error cause such behaviour?