[c-nsp] Unicast storms

Vincent De Keyzer vincent at autempspourmoi.be
Mon Jul 2 12:01:11 EDT 2007


> > 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




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