This is somewhat embarrassing. I was looking at the wrong side of the test when I initially observed the issue and I didn’t clue into that till now, so some of the previous claims are false.
Just for completeness, here’s the actual test topology: [ Tx Tester ] - et-0/0/2 - [ mx1 ] - et-0/0/0 - [ mx2 ] - et-0/0/2 - [ Rx Tester ] ... > On Jan 23, 2019, at 8:58 AM, Saku Ytti <s...@ytti.fi> wrote: > > On Tue, 22 Jan 2019 at 20:17, Jason Lixfeld <jason-j...@lixfeld.ca> wrote: > > >> Transmitting exactly 100 million 64 byte UDP packets. SPORT: 49184 DPORT: >> 7. > > Ok so ingress interface shows 100M packets coming in, but egress > interface shows only 76M packets going out? Not quite. Tester is sending 100M packets, ingress interface (et-0/0/2 @ mx1) shows 86 million packets coming in > And nothing in 'show int egress extensive'? Now that I’m looking at the right box, yes! More importantly, on et-0/0/2 @ mx1: … Traffic statistics: Input packets: 85405847 0 pps … Input errors: Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Policed discards: 0, L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0, FIFO errors: 0, Resource errors: 14594154 … 85405847+14594154 = 100000001 So now I see an error counter that has incremented and that accounts for the missing packets. This is what I was after. Incidentally, Olivier brought up hyper mode, so here are the results of that. et-0/0/2 @ mx1: … Traffic statistics: Input packets: 100000017 0 pps et-0/0/0 @ mx1: … Traffic statistics: Output packets: 76645888 8 pps … Output errors: Carrier transitions: 1, Errors: 0, Drops: 23355576, Collisions: 0, Aged packets: 0, FIFO errors: 0, HS link CRC errors: 0, MTU errors: 0, Resource errors: 0 Egress queues: 8 supported, 4 in use Queue counters: Queued packets Transmitted packets Dropped packets 0 100000097 76644521 23355576 1 0 0 0 2 0 0 0 3 1348 1348 0 Thanks all! Now I can try and look into those error counters. _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp