Hello Nigel,

you can always store this information to custom attributes which are faster than communities, auto-ignored on export and can't leak to your peers.

BTW that guide looks quite outdated (regarding e.g. the support of autoreload) and will be even more outdated with BIRD 3 optimized import tables and selective autoreload. Noting that we shall look into updating this guide.

Maria

On 27 April 2024 05:05:35 CEST, Nigel Kukard via Bird-users <bird-users@network.cz> wrote:

Hi all,

I was busy reading https://bgpfilterguide.nlnog.net/guides/reject_invalids/ and noticed the following text...

Note: REALLY DONT store the validation state inside a bgp_community or bgp_large_community or bgp_ext_community variables. It can cause CPU & memory overload resulting in convergence performance issues.

I was wondering if this is still an issue and if it would still be a bad idea to indicate that RPKI was VALID using communities on multiple full BGP feeds?

Is anyone doing this at present? are you seeing significant load?

Kind Regards
Nigel