2 BGP sessions to same neighbors ?

Damien Clabaut damien.clabaut at corp.ovh.com
Tue Dec 6 17:00:38 CET 2016

Thanks for the info

On 06/12/2016 16:29, Ondrej Zajicek wrote:
> On Tue, Dec 06, 2016 at 04:08:06PM +0100, Damien Clabaut wrote:
>> Hello,
>> For performance reasons that do not deserve to be detailed here, I am
>> trying to set up 2 separate BGP sessions between my Linux server running
>> Bird and an Arista switch.
>> The Linux machines has 2 IPs on loopback, i would like to initiate a
>> connexion from each of them.
>> I have IPs and on the server loopback, and
>> on the switch loopback.
> ...
>> Can you confirm this is a limitation in Bird ? Is there a reason for it,
>> apart from the fact that it is a non-standard case ? Is there a way to
>> bypass it ?
> Hello
> This is a limitation in BIRD - it does not allow two BGP sessions to the
> same remote IP address. The solution is to use two IP addresses also on
> the other side (switch).

Damien Clabaut
Network Engineer

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