Hi Peter, Thanks for the reply.
We have two interconnects from the NPE-G1 back to the SUP32 GI0/1 (npe) > Gi1/7 (sup32) - copper native on npe, to brand new cisco 1000-T SFP GI0/3 (npe) > Gi1/4 (sup32) - fibre GBIC on npe, to brand new cisco SFP SX The wierd thing is the CRC / Frame errors followed the VLAN when it was moved from the fibre to the copper. Both are direct patch cables nothing else... distance is about 3m on each. Thanks, Alex ________________________________________ From: Peter Rathlev [[email protected]] Sent: 29 September 2011 17:01 To: Alexander Fossa Cc: cisco-nsp [[email protected]] Subject: Re: [c-nsp] NPE-G1 Interface errors / packetloss On Thu, 2011-09-29 at 15:10 +0000, Alexander Fossa wrote: > At first we thought it was a dirty fibre / failed SFP, both have been > replaced but the problem continues. ... > Show interface stats from SUP32 ... > Full-duplex, 1000Mb/s, media type is T Have you checked the copper cable used here? Or is there some kind of media converter involved since you mention fibre? > 160219198 packets input, 76742158873 bytes, 0 no buffer > Received 133662 broadcasts (133662 multicasts) > 47 runts, 0 giants, 0 throttles > 25065 input errors, 24986 CRC, 24939 frame, 0 overrun, 0 ignored ... > As you can see lots of CRC & Frame errors the SUP32 side, and a few > overruns on the NPE-G1 side. Something is wrong with the physical path when you see CRC and frame errors on a link running full duplex in both ends. I would take a good look at the cable and any patch panels between them. -- Peter -- This message has been scanned for viruses and dangerous content by the Xifos Limited e-mail system. Further information can be found at www.xifos.net -- This message has been scanned for viruses and dangerous content by the Xifos Limited e-mail system. Further information can be found at www.xifos.net _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
