[c-nsp] Sup720 CoPP, limits on CPU performance

Brandon Ewing nicotine at warningg.com
Thu Mar 25 11:18:09 EDT 2010


On Wed, Mar 24, 2010 at 10:49:19PM -0400, Rodney Dunn wrote:
> Explain the glean to me again?
>
> Sorry..I'm overloaded but trying to catch up on the thread.
>
> We, I need to go back and check, implemented periodic punts at one point 
> that would match the glean and all subsequent packets were dropped in 
> hw/under interrupt..it wasn't a 1:1 punt.
>
> Rodney
>

Also, the documentation itself is confusing -- at some points, it states
that CoPP on 3B is able to match protocol ARP in hardware, but this doesn't
appear to actually occur, and ARP traffic falls down to class-default, which
can cause issues if you drop exceeded traffic.

-- 
Brandon Ewing                                        (nicotine at warningg.com)
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