[j-nsp] BGP full mesh or route reflector

Saku Ytti saku at ytti.fi
Fri Dec 5 09:38:53 EST 2025


I would generally recommend RR on anything more than 2 router setup.

RR gives redundancy on the signalling path, one iBGP flap doesn't
cause an outage.

With ORR and ADDPATH you're not really losing anything.

On Fri, 5 Dec 2025 at 14:36, Johan Borch via juniper-nsp
<juniper-nsp at puck.nether.net> wrote:
>
> Hi!
>
> In an SR/MP-BGP underlay, will it have a significant impact on device
> performance if we use a full iBGP mesh instead of route reflectors or other
> drawbacks? Let’s say we will end up with around 100 PE routers. These
> routers will not carry an excessive number of prefixes (no full tables).
> We can ignore the configuration part as configuration is auto-generated.
>
> Br
> Johan
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> juniper-nsp mailing list juniper-nsp at puck.nether.net
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-- 
  ++ytti


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