[c-nsp] access-list performance impact

Rodney Dunn rodunn at cisco.com
Wed Dec 19 15:05:41 EST 2007


On Wed, Dec 19, 2007 at 02:40:26PM +0100, Ahmad Cheikh Moussa wrote:
> Hi Guys,
> 
> Thanks for the links. They are really good.
> Is there a document for a 7200VXR Series ?
> The access-list should only be used for packet filtering
> on an interface. An extended access-list will be used.

Not really because it's much more complex in a software switching
platform due to what you ACL matches at and how deep in the ACL
it goes. Use latest 12.4 or 12.4T code that has better ACL lookup
algorithms. It's all done in the CEF path so it's pretty good.

Rodney

> 
> Regards,
>  Ahmad
> 
> 
> 
> 
> -- 
> Ahmad Cheikh-Moussa
> ISP-Technik
> 
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