[c-nsp] ebgp load balancing using maxiumu-paths TCAM impact on Sup720-3BXL?

[Gert Doering]

Hi,

On Thu, May 21, 2009 at 12:34:00PM +0300, Ibrahim Abo Zaid wrote:
> If 2 upstream provider provides exactly same routes with same attributes so
> BGP will select 2 routes to each destination then TCAM will reach its
> maximum as installed BGP routes will be doubled but if some destination are
> preferely reachable from one of them and 2nd route will be backup route , so
> BGP routes won't be doubled but that depends on percentage

Unless you use BGP multipath, BGP will only install one route to the FIB,
ever.  So while *BGP* will use twice the amount of memory, TCAM won't.

gert
-- 
USENET is *not* the non-clickable part of WWW!
                                                           //www.muc.de/~gert/
Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 304 bytes
Desc: not available
URL: <https://puck.nether.net/pipermail/cisco-nsp/attachments/20090521/e69784c2/attachment.bin>