[cisco-voip] Checking hardware -- PRI

[Mark Holloway]

I've seen this happen on more than one occasion when the VWIC is dying a slow death.  It bounces between TEI and Multiple Frames Established.  Not saying that's happening here, but it's one thing consider.  There is such a wide range of possibilities.  T1 timing is another potential problem.  Also, you could politely ask your Telco to rebuild the cross connects at the central office to eliminate the possibility of bad hardware on their end.  Not sure if they would do it.  They may dispatch a field tech first.

On Feb 15, 2010, at 8:53 AM, Scott Voll wrote:

> I have a ticket in with the local telco, but I have a D channel on my PRI that is bouncing about every 1-3 minutes.  
> 
> How do I check to make sure it's not a hardware issue on my side?
> 
> it's a 2851 with vwic-2mft-t1=
> 
> I see on the controller in the last 24 hours it has 1610 path code violations, 9 line code violoations, 2 serverly err secs, and 6 unavail secs. but nothing in the current interval.
> 
> I have shut not shut the interface but I continue to get RTMT reports that the D channel is down(every 1 - 3 minutes).  Router has been up for multiple days.(had a power outage last week). but d channel went down yesterday afternoon.
> 
> What else should I be looking at.
> 
> Thanks
> 
> Scott
> 
> ps. CM 6.1.3 and MGCP.
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