Re: PBR on 6509 cpu utilization

Shameless reproduction from cisco-nsp:

   See:
   http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX
  /configuration/guide/layer3.html#wpmkr1033564

   The Policy Feature Card (PFC) and any
   Distributed Feature Cards (DFCs) provide hardware
   support for policy-based routing (PBR) for
   route-map sequences that use the match ip
   address, set ip next-hop, and ip default next-hop PBR keywords.

   HTH,
   Tim

but my memory hints are that you can do more than that with PBR.
So keep an eye on CPU usage and on TCAM resources.

-Carlos

John Neiberger @ 09/10/2012 16:29 -0300 dixit:
> According to the docs, PBR has been CEF-switched since 12.0. It
> shouldn't be causing a lot of CPU spiking. As long as CEF is enabled,
> PBR will be CEF-switched.
>
> John
>
> On Tue, Oct 9, 2012 at 1:12 PM, me you <anunda19_at_gmail.com> wrote:
>> Does anyone have experience running PBR on a 6509 sup 2 or sup 720. I would
>> like to run PBR but one of the reason not to run it is because it will
>> spike the CPU. Is there any validaly behind that claim? Is there any cisco
>> doc's that would list the case examples. I tried google but did not find
>> anything usefull. Our current CPU is 3% with a 1Gig uplink. I don't see how
>> it will increase the CPU that much. I think it is just B/S because people
>> are afraid of change.
>>
>> Thanks
>> Rob
>>
>>
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-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net