[c-nsp] C65K: Any significant correlation between import filter route-map complexity and BGP Router process utilization?

Łukasz Bromirski lukasz at bromirski.net
Sat Sep 4 20:12:11 EDT 2010


On 2010-09-05 01:52, Keegan Holley wrote:
> I thought this was only optimized for TCAM operations related to packet
> filtering/manipulation.  

No, Turbo ACLs were actually made for software-forwarding platforms -
primarly 7200, 7500, later 12000 with old engines to speed up the
processing time by use of more RAM memory for additional lookup tables.

The way the mechanisms work for programming the TCAMs and other
memories found on hardware-forwarding boxes are separate story. Some of
the information about the way 6500/7600 manages the TCAM allocation is
on the whitepaper on cisco.com[1] and in some of the Networkers
presentations about architecture of those boxes.

[1].http://www.cisco.com/en/US/products/hw/switches/ps708/products_white_paper09186a00800c9470.shtml

-- 
"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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