BGP communities attached to prefix issue

[Job Snijders]

On Mon, Jul 04, 2016 at 12:02:59PM +0200, Ondrej Zajicek wrote:
> By RFC 4271, BGP message is limited to 4 kB of length. BIRD internally
> limits attribute part of a transmitted message to 2 kB. This is
> equivalent of 1024 (4 kB) or 512 (2 kB) communities.
> 
> You could replace constants 3072 [1] and 2048 [2] with say 3840 and 3584,
> that would allow 3.5 kB of attributes (~ 900 communities).
> 
> [1] proto/bgp/packets.c:372 and proto/bgp/packets.c:465
> [2] proto/bgp/packets.c:385 and proto/bgp/packets.c:481

Do you have https://tools.ietf.org/html/draft-ietf-idr-bgp-extended-messages-12 on
your roadmap? This draft bumps the 4 kB limit to ~ 65 kB.

Kind regards,

Job