[c-nsp] All multicast punting to CPU on 6500

Saku Ytti saku at ytti.fi
Sun Dec 16 06:51:13 EST 2012


Allow this in CoPP rules

ip access-list extended CoPP-MULTICAST
 permit ip any 224.0.0.0 15.255.255.255

Also 'match-all' is not supported by PFC3, even though Cisco documents use
it. But in this config it does not matter, as you don't have many matches.
Only 'match-any' is supported.

You can't match on ARP in CoPP either, not supported.

I would also never use numbered ACLs, only named.

I wonder if the rules are even in hardware, due to the ARP match. You might
want to check

show vlan internal  usage | i Control Plane Protection

Check the VLAN number, then:

remote command switch show tcam interface vlan VLAN_NUMBER qos type2 ip

To see what actually is in hardware. 
-- 
  ++ytti


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