Is there a way to merge communities from the same prefixes?

Ondrej Zajicek santiago at crfreenet.org
Tue Jun 7 16:07:57 CEST 2022


On Mon, Jun 06, 2022 at 04:20:19AM -0700, Valery Lutoshkin wrote:
> Hi all!
> 
> 
> I use bird2 (2.0.9) as RS for BGP prefix aggregation - several peers send
> me their prefixes, I aggregate them and send the result to the system.
> 
> 
> But there is an obvious issue - when peers send me the same prefix, BGP
> selects the best one and sends only that one. In this case, if prefixes had
> different communities, the result loses all but one.
> ...
> If there is any way to collect all communities and attach them to the
> chosen prefix (like this: 1.1.1.1/32 1:100,2:200,3:300), would anyone
> please tell me how to do that?


Hi

No, that is not possible.

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."


More information about the Bird-users mailing list