Cisco 2600 decides not to send LMI requests no more..

[Santa]

Hardware problem? Besides swapping out parts what else can I check?

I have never seen this problem before and everything appears to be configured correctly. We had a spare 2600 that we copied the config over to and it connected to the frame-relay without a problem and sent and recieved LMI request.

The night that this happened I found out that the CO had a problem with their Lines running to us and had to fix the line also on top of us replacing the router because we could not get the LMI's to be sent.

When doing a sh fram lmi the counter does not increment at all. We think it may be a problem with the WIC card but don't see how both CO line and hardware failure could happen the exact same time unless they were related..

 

[JustinLerner]

I believe that the lines are typically not loaded, but if you have a loaded line (with voltage levels), there should be unloading devices at your demark point or built into your CSU/DSU. The farther your location from the CO, the more loading they might use. (Not sure how this is really done.)

Either way, with or without point to point lines or standard frame relay, lines are very susceptible to lightning strikes. I saw this doing work in Las Vegas.

 

[JustinLerner]

Why couldn't they happen at the same time?

At the demark, is there a WAN provider unloading device?

 

[Santa]

Support from our ISP and the CO are saying that it was more or less a coincidence. I don't buy it and that is why I am saying it is hard to belieave that both could happen at the same time without being related (i.e. lighting strike, surge from CO .. ect.. )

About the loading of the line I am not sure. Could a malfunctioning deloader cause a spike high enough to fry a WAN card? I don't know much about how high they load the signal and whether it is high enough to kill a WIC.

 

[JustinLerner]

Could very well be a coincidence if your lines terminate at the CO and are linked to/through the ISP, but the ISP equipment is not colocated at the CO.

Still, it is possible.
Did your CO really replace/cut over a live line without telling you? If so, they really could have caused the problem, regardless of their claims.

 

[Santa]

Is there any way to test if a module is dead besides just buying a new T1 WIC and sticking it in?

This is more my gripe then trying to figure out who is at fault really though since we need to get it fixed.

I would rather not fry another WIC if it is the interface or subsystem that is bad. The only symptoms that I can tell is that the module is not sending LMI's and thats it. Weird huh.