BIRD performance in a dynamic scenario

[Yakimus // Netassist NOC]

Hello!

You can add the comunity directly in the inbound filters of the peer

-- 
Mykola Yakymenko
NETassist

On Tue, May 20, 2025 at 07:43:28AM +0000, Maxime Peim (mpeim) via Bird-users wrote:
> Hi everyone,
> 
> First of all, thanks a lot for BIRD !
> 
> I have some questions about the dynamicity of BIRD wiht BGP.
> In a scenario where routes needs to be updated accondingly depending on some external informations, I find out that those informations would need to be written into the BIRD configuration file.
> 
> As an example, if we need to add a bgp community based on the peer address (already known), we would need something like that :
> 
> ```bird
> function get_community_from_peer_address(ip addr) -> pair {
>                 case addr {
>                                <addr1> : (1,1) ;
>                                <addr2> : (245, 12434) ;
>                                …
>                                else : (0, 0) ;
>                 }
> }
> ```
> 
> And we could update that function if needed in the future but the configuration will need to be parsed each time.
> If the rate of update is high, it can become a bootleneck.
> 
> So I would like to know if I am going the right direction doing that way ?
> Is there a plan for a direct API to BIRD internals instead of passing a configuration file ?
> 
> Thanks in advance for your answer,
> Maxime Peim
>