[c-nsp] Line Code Violations

[Ted Mittelstaedt]

switch and have the other side provide clock

then have both sides set to obtain clock from the line

See what happens

Telcos these days all multiplex their circuits together - I am not sure
exactly
how they accomplish this without supplying clock to both sides.  Many of
our point-to-points apparently go through telco equipment that also isn't
sure exactly how to accomplish this either, and will supply clock, despite
the telco's techs protestations to the contrary.

Ted

----- Original Message ----- 
From: "John Neiberger" <jneiberger at gmail.com>
To: <cisco-nsp at puck.nether.net>
Sent: Wednesday, July 05, 2006 7:19 AM
Subject: [c-nsp] Line Code Violations


> I'm trying to troubleshoot a DS3 and it's really frustrating me. The local
> side terminates on a PA-T3+ and it is barely seeing any errors, and when
it
> does they are CRC errors. The far side, however, is seeing gobs of errors,
> approaching an 8% error rate at times. I don't have remote access to the
> CSU/DSU but I do know that the CV light on it is flashing, which indicates
> line code violations. Our equipment can only run B3ZS and I've had the
> carrier verify that their stuff is set the same way. They say that it is.
> I'm beginning to think that perhaps we have a bad cable and we're seeing a
> lot of different kinds of errors in addition to the LCVs, but I just don't
> know because I don't have remote access to the other CSU/DSU.
>
> I'm going to drive out there later today with my laptop to see what I can
> see, but I thought I'd check with you guys to see if you knew of any other
> types of issues that could cause line code violations. For the moment, I'm
> assuming that we're just seeing a lot of different errors and some of them
> are manifesting as line code violations, but it doesn't hurt to ask.
>
> I should mention that we're using c-bit framing, and the PA-T3+ is
providing
> clock.
>
> Thanks!
> John
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>