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

[Saku Ytti]

On (2012-12-16 09:31 +0000), Robert Williams wrote:

> The 6500 has a pretty substantial CoPP on it, matching every required protocol separately and ending with a catch-all (match ip any any) which denies anything else. None of the counters on the CoPP are incrementing for this traffic, which I believe is due to it being multicast and thus not supported by CoPP.

Do you allow all mcast in CoPP? HW CoPP does not support mcast so it's
punted, if your software CoPP does not allow mcast it's dropped, which
means hardware shortcuts can't be programmed.

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  ++ytti