I hate to say it, but this may be the dreaded sleeping pvc...
This is similar to an output stuck condition, whereby the transmit ring
fills and doesn't drain. Very ugly...
chris
> -----Original Message-----
> From: Jeff Bartig [mailto:jeffb@doit.wisc.edu]
> Sent: Tuesday, October 03, 2000 12:03 PM
> To: cisco-nsp@puck.nether.net
> Subject: [nsp] 12.0(12.??)S and PA-A3 problem
>
>
>
> Hello,
>
> I've been experiencing problems with 12.0(12)S and interim releases
> with a PA-A3 OC3MM port adapter. I'm wondering if anyone else is
> seeing similar problems.
>
> I first experienced this problem with 12.0(12)S on a 7206. Certain
> VCs stop passing traffic or experience very high packet loss.
> Other VCs on the same physical interface have no problems. Nothing
> is logged besides OSPF neighbors being lost. It is normally the
> busiest VC that experiences the problem. It can be temporarily
> fixed by performing a shut/no shut on the physical interface. The
> problem happens every 20-30 minutes. While the problem is happening,
> a "show atm vc vcd#" command will show output drops increasing.
> I've never experienced this problem while running 12.0(11)S3.
>
> I thought I might be encountering CSCds01236, so I tried 12.0(12.6)S1
> and 12.0(12.6)S2 on this 7206. I experienced the problem with both
> versions, even though it is suppose to be resolved. Today, I saw
> what looks like this same problem with a PA-A3 in a VIP2-50 while
> running 12.0(12.6)S1.
>
> I've had a case open with the TAC for a while. Currently, the TAC
> is claiming that this problem and another PA-A3 problem I am having
> are being caused by my old revision PA-A3 (HW rev 1.0, Board rev
> A0, Part# 73-2430-03 if anyone is interested). I've been shipped
> a replacement and am waiting for a maintenance window to get it
> installed. The TAC, though, can't point to any DDTS or field notice
> that states there are problems with the revision PA-A3 that I have.
> He didn't seem too excited to hear that if this does fix the problem,
> I'll be asking for replacements for all of my backbone PA-A3s,
> since they are all the same revision.
>
> If anyone has seen this problem, I would be interested in hearing
> about it. Could you include "show diag" output for the PA-A3, so
> I can see what revision you have.
>
> Thanks,
>
> Jeff
>
> --
> Jeff Bartig | University of Wisconsin - Madison
> 1210 W Dayton, Rm B263 | Division of Information Technology
> Work Phone: (608) 262-8336 | Network Engineering Technology
> E-Mail: jeffb@doit.wisc.edu |
>
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