On Wed, 12 Nov 2025 16:14:10 -0600 John Kristoff <jtk@dataplane.org> wrote:
I'd be interested in hearing if people set a hostname on their BGP routers and send it to peers (internal and/or external).
I'm also interested in hearing if you see external peers sending it to you.
I know BIRD and FRR support this capability, but I"m not aware of others and I'm guessing it is relatively rare in practice?
Most of what I learned about usage was in response to this thread, but I had a few brief responses from others elsewhere. Awareness and interest in it remains lukewarm at best. I soon after realized that ExaBGP supported this capability as well. The original discussion and reaction (pro and con) to the feature is here: <https://mailarchive.ietf.org/arch/search/?q=%22draft-walton-bgp-hostname-capability%22> Also note, there is an IANA assignment for it (73). <https://www.iana.org/assignments/capability-codes/capability-codes.xhtml> I'm guessing this capability will just sort of live on forever, rarely used until, if ever, those software implementations decide they want to remove it. John