Thanks good point on LACP Fast, we'll test it. RSTP should be in any case slower than 3 seconds with LACP FAST.
Cheers James Il giorno lun 6 mag 2024 alle ore 15:22 Saku Ytti <s...@ytti.fi> ha scritto: > On Mon, 6 May 2024 at 15:53, james list via cisco-nsp > <cisco-nsp@puck.nether.net> wrote: > > > The question: since the PO remains up, why we see this behaviour ? > > are BDPU sent just over one link (ie the higher interfac e) ? > > Correct. > > > how can we solve this issue keeping this scenario ? > > moving to RSTP could solve ? > > No. > > I understand you want topology to remain intact, as long as there is > at least 1 member up, but I'm not sure we can guarantee that. I think > if you set LACP to fast, it'll fail in max 3s, and you ensure STP > fails slower (i.e. don't use rapid pvst), you probably will just see > BPDU switch physical interface, instead of STP convergence. > > You'd need something similar to microBFD on LAGs, where BFD PDU is > sent on each member, instead of an unspecified single member, but > afaik this does not exist. > > So what you really need is L3/MPLS topology :/. > > -- > ++ytti > _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
