Best external route on iBGP

Apollon Oikonomopoulos apollon at skroutz.gr
Thu Apr 9 16:23:10 CEST 2015


Hi,

On 16:17 Thu 09 Apr     , Ondrej Zajicek wrote:
> On Thu, Apr 09, 2015 at 01:10:57PM +0300, Apollon Oikonomopoulos wrote:
> > So, in case I'm missing something, is there another way to achieve 
> > best external route propagation over iBGP?
> 
> The idea is simple - just add a separate routing table, say 'ibpg',
> connect all IBGP protocols to that table and set them lower preference.
> EBGP and other protocols would be connected to regular 'master' table.
> 'ibgp' and 'master' would be connected by pipe which allows all routes
> but restores default preference for BGP routes propagated from 'ibgp' to
> 'master'. Therefore routes in master table would be sorted as usual,
> while in ibgp table all EBGP routes would be before all IBGP routes:

You're right, setting the route preference that way didn't occur to me.  
Thanks for the hint!

Regards,
Apollon


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