Dear Benoit,

this looks like that you maybe want to bump the bgp_local_pref by some value for the transit route, or properly use bgp_med. You haven't disclosed much so I can't help you more specifically than this.

Anyway, as this is obviously a pretty big deployment, you may make a good use of some of our support packages. This also supports our team to do all the development and maintenance. To get a quote, please contact us at bird-support@network.cz.

Best Regards,

Maria

On 14 June 2023 22:00:28 CEST, Benoit Chesneau <benoitc@enki-multimedia.eu> wrote:

For redundancy I am thinking to have a router reflector per pop . Each route reflector would peer with each others. The issue is that since each POP has a transit, i have duplicate route and sometimes a loop is created. How can it be prevented?? I tried to put them in the same cluster but it doesn't seem to be enough. 

Any idea is welcome :)


Benoît

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Maria Matejka (she/her) | BIRD Team Leader | CZ.NIC, z.s.p.o.