[c-nsp] Cat 6500 - uRPF - FIB TCAM

Gert Doering gert at greenie.muc.de
Wed Aug 15 02:24:56 EDT 2012


Hi,

On Tue, Aug 14, 2012 at 07:50:08PM -0400, Brandon Applegate wrote:
> I know this has been mentioned over the years here and there, but I don't 
> know that I fully understand the exact behavior.  I've always read 'urpf 
> halves your tcam...'.  So this only applies to the interface on which it's 
> configured, correct ?  So for example, in a single switch with the full 
> routing table (using ipv4 for examples, and using simple even numbers 
> not counting any built-in entries):

This only applies to Sup2.

gert
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
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