Hey folks, Anno domini 2022 Jeffrey Haas scripsit:
> > On Sep 14, 2022, at 2:36 PM, John Scudder <[email protected]> wrote: > > > > That’s cleaner but now the monitoring station has to go to the (minor?) > > trouble of keeping track of EoRs and reconciling them against AFs supported > > on the session. > > > > Yet another option would be to introduce a BMP-specific “end of initial BMP > > convergence” message that does what the current text suggests — a single > > message to say “done". That one smells the best to me, at the moment. It’s > > also the most intrusive. > > Speaking as someone who soaks in how some customers use BMP, the per-AFI/SAFI > end of rib is a feature rather than a bug. > > BMP already serves to push the firehose of a router down a drinking straw. > Being able to tell you're done with one address family is helpful to let some > things come to convergence rather than waiting on everything. > > The other headache of the single "I'm done" bit is the consequence on trying > to get all of the per-AFI/SAFI queues to be done at the same time. For > example: > IPv4 unicast is done, no EoR is sent. > IPv6 unicast starts doing its work. > IPv4 unicast has more churn go through > IPv6 unicast is done, no EoR is sent. > System needs to go back to trying to get IPv4 unicast done to send EoR. Pray > that nothing else changes... I fully agree with that. Having one marker per AF seems to be the much better option as it clearly indicates which RIB is fully transmitted/ recieved/mirrored and also feels simpler to implement in a safe and sane way. As a matter of fact we were just wrapping our brains around implementing support for BMP export in Bio Routing and it's complicated enough as it is ;) This gets especially tricky if you want to make sure you don't open yourselves up for any race conditions, especially in the initial dump. So I'd say lets stay with EoR and clarify it's to be send per AF and we should be in a better place. Cheers, Max _______________________________________________ GROW mailing list [email protected] https://www.ietf.org/mailman/listinfo/grow
