[c-nsp] Sup720 vs RSP720 - Difference?

Phil Mayers p.mayers at imperial.ac.uk
Sun Jun 21 04:13:59 EDT 2009


Oops. Yes of course, thanks for that! The point about distributed netflow is a good one - we'd certainly exceed the tcam limits without it

-original message-
Subject: Re: [c-nsp] Sup720 vs RSP720 - Difference?
From: Łukasz Bromirski <lukasz at bromirski.net>
Date: 21/06/2009 07:58

On 2009-06-19 18:43, Phil Mayers wrote:

> I see in your original post you mentioned netflow - you will probably
> want to have a look through the archives for the (many, long) threads
> where people document their problems with netflow on this platform.
> Specifically, like the FIB, the DFCs have limited TCAM slots for netflow
> entries (256k/1M on non-XL/XL) and you can over-run this TCAM if you
> have a lot of traffic.

Correction: NetFlow entries are 128k on non-XL and 256k on XL PFCs/DFCs.
However, it's worth to note, that if the chassis is equipped with
DFCs, the collection of NetFlow entries happens independently - so,
theoretically, each of DFC-equipped LCs could go up to 128k if that
would be DFC3B/C, or up to 256k for DFC3BXL/3CXL.

http://cisco.com/en/US/prod/collateral/switches/ps5718/ps708/product_data_sheet09186a0080159856.html

-- 
"Everything will be okay in the end. |                  Łukasz Bromirski
  If it's not okay, it's not the end. |       http://lukasz.bromirski.net



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