Hi, whenever output drops are increasing we have always found port faulty.
As this is gig port we can't test loop but still it seems that port is faulty. Best Regards, Umair Saeed -----Original Message----- From: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of John Neiberger Sent: Thursday, July 26, 2012 10:38 PM To: cisco-nsp@puck.nether.net Subject: [c-nsp] Troubleshooting uncategorized output drops and errors on the 6500 I've got another strange issue brewing. We have a 1-gig interface on a 6500 (6748 blade) that has a high number of output errors and output drops. The drops are not queue drops. Here are the stats, one week after clearing the counters. Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 1158860 Queueing strategy: fifo Output queue: 0/40 (size/max) 30 second input rate 854000 bits/sec, 101 packets/sec 30 second output rate 78000 bits/sec, 116 packets/sec 97152626 packets input, 115649666904 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 90216394 packets output, 7441734020 bytes, 0 underruns 579430 output errors, 0 collisions, 0 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out Packets dropped on Transmit: queue dropped [cos-map] --------------------------------------------- 1 0 [0 1 ] 2 0 [2 3 4 ] 3 0 [6 7 ] 4 0 [5 ] I haven't been able to figure out what could be causing such a high rate of errors and drops. I have a TAC case open, but the engineer hasn't been able to explain what we're seeing. I'm probably just going to coordinate with the server and app owners to move this to another link, but I'm still very curious about what could cause this behavior. Any ideas? Thanks, John _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
