I think there is a bug with logical tunnels with how it handles TTL. Try physical ports for your logical systems.
On Fri, Aug 25, 2017 at 8:00 AM, Aaron Gould <aar...@gvtc.com> wrote: > This is crazy… I was shutting down some lt interfaces trying to see if I > could get traffic to follow that same path via where I saw the p hops > reported on traceroute, and I suddenly saw it start working again where it > will now show the p hops on traceroute, but a different path this time. > I’m encouraged that p hops are seen on traceroute even via a different path > then my previous email showed. But weird that it works sometimes and not > other times. Not sure why yet. > > > > > > r1@lab-mx104:r1> traceroute 1.1.10.2 wait 1 > > traceroute to 1.1.10.2 (1.1.10.2), 30 hops max, 40 byte packets > > 1 1.1.0.2 (1.1.0.2) 0.537 ms 0.452 ms 0.359 ms > > 2 * * * > > 3 * * * > > 4 * * * > > 5 1.1.10.1 (1.1.10.1) 0.628 ms 0.629 ms 0.527 ms > > 6 1.1.10.2 (1.1.10.2) 0.580 ms 0.620 ms 0.542 ms > > > > r1@lab-mx104:r1> traceroute 1.1.10.2 wait 1 > > traceroute to 1.1.10.2 (1.1.10.2), 30 hops max, 40 byte packets > > 1 1.1.0.2 (1.1.0.2) 0.493 ms 0.471 ms 0.366 ms > > 2 * * * > > 3 * * * > > 4 * * * > > 5 1.1.10.1 (1.1.10.1) 0.686 ms 0.613 ms 0.523 ms > > 6 1.1.10.2 (1.1.10.2) 0.600 ms 0.587 ms 0.555 ms > > > > r1@lab-mx104:r1> ping 1.1.10.2 > > PING 1.1.10.2 (1.1.10.2): 56 data bytes > > 64 bytes from 1.1.10.2: icmp_seq=0 ttl=59 time=0.705 ms > > 64 bytes from 1.1.10.2: icmp_seq=1 ttl=59 time=0.769 ms > > 64 bytes from 1.1.10.2: icmp_seq=2 ttl=59 time=0.645 ms > > 64 bytes from 1.1.10.2: icmp_seq=3 ttl=59 time=0.638 ms > > 64 bytes from 1.1.10.2: icmp_seq=4 ttl=59 time=0.615 ms > > ^C > > --- 1.1.10.2 ping statistics --- > > 5 packets transmitted, 5 packets received, 0% packet loss > > round-trip min/avg/max/stddev = 0.615/0.674/0.769/0.056 ms > > > > r1@lab-mx104:r1> traceroute 1.1.10.2 wait 1 > > traceroute to 1.1.10.2 (1.1.10.2), 30 hops max, 40 byte packets > > 1 1.1.0.2 (1.1.0.2) 23.530 ms 0.403 ms 0.364 ms > > 2 1.1.7.2 (1.1.7.2) 0.679 ms 0.586 ms 1.884 ms > > MPLS Label=300208 CoS=0 TTL=1 S=0 > > MPLS Label=16 CoS=0 TTL=1 S=1 > > 3 1.1.11.2 (1.1.11.2) 1.481 ms 0.656 ms 0.627 ms > > MPLS Label=300272 CoS=0 TTL=1 S=0 > > MPLS Label=16 CoS=0 TTL=2 S=1 > > 4 1.1.6.1 (1.1.6.1) 0.628 ms 0.745 ms 0.640 ms > > MPLS Label=300464 CoS=0 TTL=1 S=0 > > MPLS Label=16 CoS=0 TTL=3 S=1 > > 5 1.1.2.2 (1.1.2.2) 0.704 ms 0.648 ms 0.633 ms > > MPLS Label=300400 CoS=0 TTL=1 S=0 > > MPLS Label=16 CoS=0 TTL=4 S=1 > > 6 1.1.3.2 (1.1.3.2) 0.662 ms 0.673 ms 0.683 ms > > MPLS Label=300528 CoS=0 TTL=1 S=0 > > MPLS Label=16 CoS=0 TTL=5 S=1 > > 7 1.1.10.1 (1.1.10.1) 0.662 ms 0.627 ms 0.669 ms > > 8 1.1.10.2 (1.1.10.2) 0.713 ms 0.673 ms 0.639 ms > > > > r1@lab-mx104:r1> > > > > here’s some traces from the ingress PE r2… the first trace is from > ingress/egress pe’s r2 and r8 loopbacks… the second trace is from the pe/ce > interface on r2/r8 facing their respective ce r1/r9… > > > > > > [edit] > > r2@lab-mx104:r2# run traceroute 1.1.255.8 source 1.1.255.2 > > traceroute to 1.1.255.8 (1.1.255.8) from 1.1.255.2, 30 hops max, 40 byte > packets > > 1 1.1.7.2 (1.1.7.2) 0.734 ms 0.495 ms 0.381 ms > > 2 1.1.11.2 (1.1.11.2) 0.397 ms 0.532 ms 0.375 ms > > 3 1.1.255.8 (1.1.255.8) 0.564 ms 0.788 ms 0.535 ms > > > > [edit] > > r2@lab-mx104:r2# run traceroute 1.1.10.1 source 1.1.0.2 routing-instance > test > > traceroute to 1.1.10.1 (1.1.10.1) from 1.1.0.2, 30 hops max, 40 byte > packets > > 1 1.1.7.2 (1.1.7.2) 0.722 ms 0.695 ms 0.596 ms > > MPLS Label=300208 CoS=0 TTL=1 S=0 > > MPLS Label=16 CoS=0 TTL=1 S=1 > > 2 1.1.11.2 (1.1.11.2) 0.588 ms 0.560 ms 0.528 ms > > MPLS Label=300272 CoS=0 TTL=1 S=0 > > MPLS Label=16 CoS=0 TTL=2 S=1 > > 3 1.1.6.1 (1.1.6.1) 0.617 ms 0.744 ms 0.623 ms > > MPLS Label=300464 CoS=0 TTL=1 S=0 > > MPLS Label=16 CoS=0 TTL=3 S=1 > > 4 1.1.2.2 (1.1.2.2) 0.696 ms 0.718 ms 0.629 ms > > MPLS Label=300400 CoS=0 TTL=1 S=0 > > MPLS Label=16 CoS=0 TTL=4 S=1 > > 5 1.1.3.2 (1.1.3.2) 0.647 ms 0.652 ms 0.628 ms > > MPLS Label=300528 CoS=0 TTL=1 S=0 > > MPLS Label=16 CoS=0 TTL=5 S=1 > > 6 1.1.10.1 (1.1.10.1) 0.798 ms 0.712 ms 0.667 ms > > > > [edit] > > r2@lab-mx104:r2# > > > > - Aaron Gould > > > _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp