[c-nsp] Unicast flooding on 6500 with dcef

Phil Mayers p.mayers at imperial.ac.uk
Wed Nov 2 03:44:33 EDT 2011


On 11/02/2011 04:49 AM, jack b wrote:
> I'm having an issue with unicast traffic being flooded on a 6500 with dcef.
> All the traffic being flooded is to a single mac-address and if i check the
> cam table for that mac-address I only see an entry on one of the modules
> with dcef but not on the others. The command 'mac-address-table
> synchronize' does not seem to be available in the version of code this
> device is running. Anyone have any idea if there is another way of fixing
> this without upgrading the code or configuring a static cam entry?

How is the the traffic arriving at the switch? On what port, at what 
layer (layer2 or layer3)? What does "sh mod" say, which will help 
interpret the previous?


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