Hi Paul, l also have two cases open with similar questions.
First it is nowhere written which fields are taken on EX to calculate the hash for per flow. JTAC seems to not know though sent me very detailed explanation of how per-flow balancing is done for LAGs. Seems like ECMP uses the same fields, but nobody from Juniper is able to pronounce this out loud. The second is about traffic from Control Plane is not forwarded properly when per-flow ECMP is enabled. Transit traffic goes well but when I try to ping from the switch itself, only half (towards one of the NH) of or even no packets leave the outgoing interfaces. It is known that for LAGs traffic originated from control plane is not balanced and goes through the first link in a bundle. Seems like someone forget to do the same here. JTAC also goes unconscious and says they are not sure the packets really don't leave the switch because the two next hops, I used to test this, have same lo0 addresses (what a horror!). Did not tested 10.1R2 for this yet. -- Regards, Pavel _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
