I had this problem a few weeks ago. It was bug CSCte89940: +++++++++++++++ IBC invalid packet drop on RSP 720 Symptoms While pinging 7600 with RSP 720 we see some drops. These drops are counted under show ibc under "Invalid pkts dropped" Conditions The issue is seen on RSP 720 with SRD image. Workaround SRC05 and SRB07 do not have this issue, nor it is present with SUP 720. +++++++++++++++
Regards, Antonio Soares, CCIE #18473 (R&S/SP) [email protected] http://www.ccie18473.net -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ivan Sent: sábado, 30 de Abril de 2011 01:24 To: cisco-nsp Subject: [c-nsp] 7600 RP Invalid Packet Drops I have a 7600 with a RSP720-3CXL-GE. When pinging between the 7600 and any other device (I have tried a few) I am loosing packets - usually 5/10000 ish. I have eventually been able to match the number of lost packets with a counter from the output of "show ibc" which from my searching of the archives "shows you the inband interface leading to the RP CPU". The counter is: Invalid pkts dropped: 306 Can anyone advise what this counter indicates? Only seems to increment with my ping traffic and not any customer traffic. I have other similar hardware but can not reproduce the issue :-( The output 7600#show ibc Interface information: Interface IBC0/0(idb 0x1C88ECE8) 5 minute rx rate 1138000 bits/sec, 156 packets/sec 5 minute tx rate 2305000 bits/sec, 306 packets/sec 1529092452 packets input, 97618397184 bytes 1480180863 broadcasts received 1522436849 packets output, 93778000882 bytes 15858294 broadcasts sent 0 Bridge Packet loopback drops 1415112685 Packets CEF Switched, 0 Packets Fast Switched 0 Packets SLB Switched, 0 Packets CWAN Switched Label switched pkts dropped: 0 Pkts dropped during dma: 0 Invalid pkts dropped: 306 Pkts dropped(not cwan consumed): 0 Xconnect pkts processed: 29, dropped: 0 Xconnect pkt reflection drops: 0 Total paks copied for process level 29 Total short paks sent in route cache 1346148563 Total throttle drops 0 Input queue drops 0 total spd packets classified (50929199 low, 6698050 medium, 34521686 high) total spd packets dropped (0 low, 0 medium, 0 high) spd prio pkts allowed in due to selective throttling (0 med, 0 high) IBC resets = 1; last at xxx 2010 Driver Level Counters: (Cumulative, Zeroed only at Reset) Frames Bytes Rx(0) 878738849 2018480538 Rx(1) 653772091 3242895654 Tx(0) 1522436850 1746755712 Input Drop Frame Count Rx0 = 0 Rx1 = 0 Per Queue Receive Errors: FRME OFLW BUFE NOENP DISCRD DISABLE BADCOUNT Rx0 0 0 0 0 0 0 0 Rx1 0 0 0 0 0 0 0 Tx Errors/State: One Collision Error = 0 More Collisions = 0 No Encap Error = 0 Deferred Error = 0 Loss Carrier Error = 0 Late Collision Error = 0 Excessive Collisions = 0 Buffer Error = 0 Tx Freeze Count = 0 Tx Intrpt Serv timeout= 1 Counters collected at Idb: Is input throttled = 0 Throttle Count = 0 Rx Resource Errors = 0 Input Drops = 306 Input Errors = 0 Output Drops = 0 Giants/Runts = 0/0 Dma Mem Error = 0 Input Overrun = 0 7600#show platform hardware pfc mode PFC operating mode : PFC3CXL Cheers Ivan _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
