PBR needing to hit the cpu?

Mon Sep 19 06:38:41 UTC 2005

>> That's not at all surprising.  PBR would be pretty hard to push  
>> into a hardware forwarding path.
>> Not impossible, but certainly challenging.
>>
>
>  Doesn't the SUP-720(PFC3B) support (some forms of) PBR in hardware ?
>

As has been pointed out to me privately, the SUP-720 does flow cache  
PBR support.  Now, if you consider a flow cache to be acceptable  
performance, and the flow descriptor fits within the policies that  
you wanna write and you fit within the performance boundaries of a  
SUP-720, well, that may be a suitable solution.

Tony