From: Pavel Bykov (slidersv@gmail.com)
Date: Tue Mar 17 2009 - 18:01:27 ART
These are two different routes, so technically, you cannot "prefer" one over
the other. It's not BGP that selects longest match, but RIB.
BGP will behave like these are two separate routes that don't compete
between each other.
One good method would be as already suggested, to create a NO-ADVERTISE map
based on EXIST-MAP, where no-advertise would refer to /24 and exist map
would refer to /19.
On Mon, Mar 16, 2009 at 5:13 PM, Ali El Moussaoui <mousawi.ali@gmail.com>wrote:
> Hello Experts,
>
> I am getting /19 route from one service provider and /24 from another. How
> can I prefare the /19 route? AS we know that BGP selection process is based
> on longest match fregardless of all other attributes.
>
> Ali
>
>
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