Route-type 5 support in BGP EVPN

[Maria Matejka]

Hello!

On Mon, Oct 28, 2024 at 10:49:32AM +0530, Ramanathan Selvamani wrote:

> I would like to know about the below two things in BIRD support
> 
> (1) Do you have any plan to support BGP EVPN Route-Type 5 (IP Prefix Route)
> as defined in RFC 9136 in the BIRD EVPN branch.

Not in the first version to be released, yet if there is enough demand,
why not. What is your usecase, please?

> (2) Do you have any plan to support two level recursive lookup to resolve
> nexthop for BGP routes.
> I mean the below comment in "rt_update_hostentry" function
> /* Recursive route should not depend on another recursive route */

This has quite some consequences we are avoiding by enforcing the
one-level rule, thus if there is demand, we may add it in some higher
version of BIRD 3 probably. The major problem is thorough
testing to identify the corner cases where the multi-level resolution
may start to do weird things after specifically timed colliding updates.

Have a nice day! 
Maria

-- 
Maria Matejka (she/her) | BIRD Team Leader | CZ.NIC, z.s.p.o.
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