On Wed, 2010-09-01 at 16:26 +0200, Jens S Andersen wrote: > 2 weeks ago i upgraded my WS-C6503-E/WS-SUP32-GE-3B to ios > advipservicesk9_wan-mz.122-33.SXI4a. > > Since then I've seen 2 cases of layer 2 loop. This switch/router forms > a layer 2 "ring" with 3 other switch/routers (for redundancy). This > has ben working for years without problems. > > Has anyone experienced stability-problems with this IOS version?
Plain L2 switching with switchports? Or something more exotic? What do the switches themselves say about it? Have you tried STP debugging or been able to observe the problem while it happens? I guess everybody's seen loops of some kind, but most times there's an explanation. -- Peter _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
