Brian, I don't think this is the way "unicast storm-control" is supposed to work.
Of course the traffic on the LAN is bursty, but that's just fine; what I think Cisco tried to address with this feature is the unicast flood due to unknown destination MAC address. Foundry has similar (equivalent?) features, and they are less ambiguously named: "broadcast limit", "multicast limit" and "unknown-unicast limit". Now this is all only guesswork, since I have never seen this feature clearly explained on CCO... Vincent > -----Original Message----- > From: Brian Turnbow [mailto:[EMAIL PROTECTED] > Sent: lundi 2 juillet 2007 18:46 > To: Vincent De Keyzer; Francois Ropert; [email protected] > Subject: RE: [c-nsp] Unicast storms > > It would be all unicast traffic measured in 1 second intervals , not just > unknown destinations, so you might want to try setting up a rate limit > with permit actions to see if you are having bursts of traffic. > > Brian > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:cisco-nsp- > [EMAIL PROTECTED] On Behalf Of Vincent De Keyzer > Sent: lunedì 2 luglio 2007 18.01 > To: 'Francois Ropert'; [email protected] > Subject: Re: [c-nsp] Unicast storms > > > > I have configured _unicast_ storm-control on our LAN recently, and it > > > keeps kicking in all of the time (something like 50 times per hour). > > > > > > The configured treshhold is quite high (10% - that's 100 Mbps on GigE > > > ports!...). > > > > > > I believe there is something wrong - where do I start troubleshooting > > > this? > > > > > Read the rxload% and input in show interface command to see if are you > > really under the 10% assuming you haven't snmp nor netflow. > > Well, > > I have snmp, but this is not my understanding of unicast storm: as far as > I > understand, unicast storm is defined as traffic with an unknown > destination > MAC address. > > I don't think you can see this with 'sh int' or SNMP, can you? > > Vincent > > > _______________________________________________ > 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/
