Sasha, On Wed, Oct 19, 2022 at 08:07:06PM +0000, Alexander Vainshtein wrote: > And I have not encountered implementations by other vendors that support this > option (with or without the knob in question). My guess (FWIW) is that this > would make an implementation much more complicated while the benefits would > be minimal.
BFD on LAG was a contentious and fussy bit of RFC work. Much of the earlier headache about whether multicast or unicast MACs were to be involved had to do with chip details. However, I suspect as time has passed and it's become a more common feature across the vendors, things may have stabilized. > So I think that we indeed need a survey you have proposed. I've internally enquired about this at Juniper. A brief survey of some other implementations' manuals doesn't seem to suggest any knob for this behavior. It'd be good to get more formal statement of compliance from these vendors. > If there are no implementations exercising optional behavior, deprecating it > in 7130 could be considered as well. Absolutely. That would be an appropriate errata response once we have some data. -- Jeff