[c-nsp] IGMP on 6500s - %MCAST-xx-GC_LIMIT_EXCEEDED

Phil Mayers p.mayers at imperial.ac.uk
Fri Sep 8 05:35:19 EDT 2006


I'm getting these messages on our 6500 sup720-3B. I'm aware you can up 
the limits but I want to find what IGMP activity is causing them. The 
problem being that there is NO WAY normal activity on this set of 
networks could be realistically generating:

"...more Layer 2 entries than what allowed (15488)"

What exactly does the count refer to?


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