Help with Route Reflector and BGP multipath.

[Arnaud Houdelette-Langlois]

Thanks for your answer.

The switches weren't properly configured.

I managed to get multipath working. At least with ipv4.

When enabling "add paths" on ipv6 channel, I get an "Received: Invalid 
OPEN message" error (although the switch is advertising the capability). 
I wont blame bird yet, as ExaBGP peers dont care at all.

to be continued ...

Arnaud Houdelette-Langlois
Administrateur des infrastructures systèmes et réseaux
Normandie Université
+33 2 31 56 69 54

Le 04/03/2023 à 00:29, Hugo Slabbert a écrit :
> What's your `show protocols all` output for the BIRD side for the 
> sessions with the switches, to confirm BIRD is advertising add-path TX 
> and the switches advertising add-path RX? Do you see ADD-PATH 
> capabilities showing up properly both on the local and neighbor 
> capabilities (TX for local capabilities; RX neighbor capabilities 
> (switches)?)
>
> On Fri, Mar 3, 2023 at 7:49 AM Marek Zarychta 
> <zarychtam at plan-b.pwste.edu.pl> wrote:
>
>     W dniu 3.03.2023 o 16:27, Arnaud Houdelette-Langlois pisze:
>     > That's was an expected one, but as I send routes to another
>     router and
>     > not to the kernel i would have expected that this would not have
>     been
>     > an issue. I will try to update bird.
>     I might be wrong and misleading you then. Perhaps someone from BIRD
>     developers can shed more light on this, but if you can give try
>     building
>     2.0.12 with netlink support.
>     > Do you know if BSD port is up to date ?
>
>     No, it's still 2.0.11 in ports, but you can use the patch from
>     bugzilla[1]. You'll need the most recent 13-STABLE or 14-CURRENT
>     built
>     or 13.2-RC1 to build and run netlink flavor or the port.
>
>     [1] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=269553
>
>     -- 
>     Marek Zarychta
>
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