> Op 4 aug. 2015, om 20:22 heeft Dino Farinacci <[email protected]> het > volgende geschreven: > > IS-IS hellos are sent by default roughly every 10 seconds. CSNPs to keep the > link-state database in sync is sent every 10 seconds.
The sample or default timers are not optimal for todays wired links. We cannot trust on lower layer state (driver issues, switches). I suggested (hello=1,dead=4) some years ago. Acee responded this is topic for further discussion. http://www.ietf.org/mail-archive/web/homenet/current/msg01961.html Resulted in "Minimising convergence time should be a goal" in RFC 7368. At last IETF, Henning hacked olsrd2, now it has better zero-conf and it has SADR. I tested using a homenet scenario (NRL core simulation). olsrd2 converged much faster than ospf6d. Both ran with defaults, as mandatory in homenet. My 2ct on RP requirement for convergence speed: 1-hop convergence should be within 5 seconds, network wide convergence within 15 seconds. Reasoning: this is _additional_ time in the total boot procedure. Another 2ct: during convergence, there should not be looped packets. Reasoning: especially on shared media such as wireless, looped packets effect RP behavior and other user traffic badly, and thus result in bad user experience. Teco _______________________________________________ homenet mailing list [email protected] https://www.ietf.org/mailman/listinfo/homenet
