> > Setup: > 4 port LACP channel, C6880 <-> Nexus 7k > > Recently we had the issue that most (not all) traffic was black-holed on a > C6880. > No interface counters, nor the port-channel status, nor an NMS pointed to > any abnormal behavior. > > Finally, the problem was resolved by shutting down a specific interface on > C6880. > It seems that one defect port affected the function of the entire > port-channel !! > > Have you ever encountered a similar issue ?
We encountered a similar issue as part of bug ID CSCut40421 specific to 10G links. There was a somewhat complex workaround, but we upgraded to resolve it. I think the bug was a regression in 15.1(2)SY5 from a prior fix to resolve the same issue with 1G links. We went to 15.2(1)SY1a, which fixed it for us. Nathan _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
