From: Ahsan Mohiuddin (ahsan.mohiuddin@yahoo.com)
Date: Sat Mar 29 2008 - 01:31:11 ART
Actually, I don't know what I was thinking. If local pref has been adjusted by R1, then R3 would prefer that route (learned via R2) over its directly connected link to the external AS. So yes, you would need to adjust the weight at R3.
Ahsan Mohiuddin <ahsan.mohiuddin@yahoo.com> wrote: You can use weight at R3 to influence it to using its directly connected link to the external destination. Come to think of it, R3 should alutomatically prefer the EBGP route over the IBGP route learned from R2/R1, so need need even for the weight command
"Athaide, Dwayne" <DAthaide@eprod.com> wrote: (R1-R2-R3)
Is there a way to stop the propagation of a modified local preference
value within an AS without making any configuration to the router that
needs to keep its default value. In this case R3. For example R1 and R3
are connected to the same external AS and learning routes from the AS.
R1 has modified the routes learnt via the external AS by using local
preference. R2 now gets those routes and passes it on to R3. Now R3
uses R1 as an exit point. Anyway to have R3 ignore the higher local
preference it learns on R3 and have it exit directly by not making any
changes on R3.
Thanks
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