From: Brent Foster (jbrentfoster@yahoo.com)
Date: Mon Feb 06 2006 - 10:15:05 GMT-3
JP,
I think the solution you want will be to use BGP
Confederations. BGP Confederations will allow you to
put R1 & R3 in one confederation, R2 & R4 in another
confederation.
Then, with confederations, you can use MEDS & Local
Preference to set link preference to the
"confederation eBGP core router". I have not tested
this, but it is supposed to work this way. I will
test this today and post my results.
Thanks,
Brent
--- Jens Petter Eikeland <jenseike@start.no> wrote:
> Hi all,
>
> I am trying to set up a network running BGP. I have
> a core router that are
> running IBGP with other routers connected to it.
>
> This is how it looks
>
> R1------core------R2
> | |
> | |
> | |
> R3 R4
>
> IBGP :
>
> Core to R1
> Core to R2
> Core to R3
> Core to R4
>
> The EBGP link is going out from the core to yet
> another router.
>
> Now I want to also run IBGP between R1 to R3 and
> between R2 to R4
>
> There are clients behind all routers. For R1 and R3
> clients I want to
> prefere the link from R1 to core with R3 to core
> being backup for both.
> Also same for R2 and R4. R2 should be the preferred
> link for these clients
> And the R4 to core should be the backup.
>
> I would appreachiate some help finding the best
> setup for this net. Do I
> need to do rout-reflector clients on the client
> routers?. And how do I
> achive the backup scenario best.
>
> I do have some idea on how I need to do this, but I
> would like to get some
> Pointers from others also..
>
> Thanks
>
> JP
>
>
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