Hi, > Hopefully this will ring a bell with someone that has "been there done > that" and can save me a road trip with a sniffer... > > We recently added a few HP ProCurve switches (2810s) at the access layer > using simple trunks back to our existing Ciscos (2950/2960/3550/3560s). > > All is well with the exception that our network monitoring is turning up > discards on the trunks (roughly every 10 seconds). > > I've tried disabling all of the negotiations that I can think of, e.g.,:
HPs doing link aggregation testing which is blipping the cisco? turn LAG off on the HP switches is what I'd recommend. > Also getting a *lot* of noisy spanning tree traffic seen on the Cisco side: > > > Protocol Path Pkts In Chars In Pkts Out Chars Out > > > > Spanning Tree Process 17447867 1099182989 3219 204892 > > Ciscos are trunning default PVST, HPs are doing whatever they do out of > the box. Not sure if this is an issue or just brain-dead old Catalyst > "show int switching" counter bug :-) HPs and Ciscos generally are okay with PVST interop or 802.1w stuff. I would advise that you use 'spanning-tree portfast trunk' on the trunk link between the cisco and HP - if a BPDU is then seen on that cisco link then spanning-tree will kick into action alan _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
