[j-nsp] BFD over RSVP LSPs with teardown as action

[Gard Undheim]

Hi

I am currently trying to test the new functionality in Junos 8.5 which
enables BFD to tear down lsps. I am currently running a simple MPLS
setup between two routers with one lsp with a primary and standby
secondary path.

I have never setup BFD before, and when I try I can not get the
BFD session up and running. Anyone have any suggestions?

Below are the configuration on the egress/ingress MPLS routers,
the LSPs are up and running. No log entries regarding BFD are
found in the messages on any of the routers.

Best Regards,
Gard


Config:

Router1:

label-switched-path to_38 {
     to 192.168.1.38;
     oam {
         bfd-liveness-detection {
             minimum-interval 50;
             multiplier 3;
             failure-action teardown;
         }
     }
     primary via_38;
     secondary via_37 {
         standby;
     }
}
label-switched-path to_37 {
     to 192.168.1.37;
     primary via_37;
     secondary via_38 {
         standby;
     }
}
path via_37 {
     192.168.1.37 strict;
}
path via_38 {
     192.168.1.38 strict;
}


Router2:

label-switched-path to_36 {
     to 192.168.1.36;
     oam {
         bfd-liveness-detection {
             minimum-interval 50;
             multiplier 3;
             failure-action teardown;
         }
     }
     primary via_36;
     secondary via_37 {
         standby;
     }
}
path via_37 {
     192.168.1.37;
}
path via_36 {
     192.168.1.36;
}

BFD session output:

Router1:

                                                           Transmit
Address              State     Interface     Detect Time  Interval 
Multiplier
127.0.0.1            Init      fe-0/1/0.0          3.000     1.000 
  3
  Client RSVP-OAM, TX interval 0.050, RX interval 0.050
  Local diagnostic NbrSignal, remote diagnostic None
  Remote state Down, version 1
                                                           Transmit
Address              State     Interface     Detect Time  Interval 
Multiplier
127.0.0.1            Init      fe-0/1/1.0          3.000     1.000 
  3
  Client RSVP-OAM, TX interval 0.050, RX interval 0.050
  Local diagnostic NbrSignal, remote diagnostic None
  Remote state Down, version 1
                                                           Transmit
Address              State     Interface     Detect Time  Interval 
Multiplier
192.168.1.38         Down                          0.000     1.000 
  3
  Client RSVP-OAM, TX interval 0.050, RX interval 0.050
  Local diagnostic None, remote diagnostic None
  Remote state AdminDown, version 1
                                                           Transmit
Address              State     Interface     Detect Time  Interval 
Multiplier
192.168.1.38         Down                          0.000     1.000 
  3
  Client RSVP-OAM, TX interval 0.050, RX interval 0.050
  Local diagnostic None, remote diagnostic None
  Remote state AdminDown, version 1

4 sessions, 4 clients
Cumulative transmit rate 4.0 pps, cumulative receive rate 2.0 pps


Router2:

                                                           Transmit
Address              State     Interface     Detect Time  Interval 
Multiplier
127.0.0.1            Init      fe-0/3/0.0          3.000     1.000 
  3
  Client RSVP-OAM, TX interval 0.050, RX interval 0.050
  Local diagnostic NbrSignal, remote diagnostic None
  Remote state Down, version 1
                                                           Transmit
Address              State     Interface     Detect Time  Interval 
Multiplier
127.0.0.1            Init      fe-0/3/1.0          3.000     1.000 
  3
  Client RSVP-OAM, TX interval 0.050, RX interval 0.050
  Local diagnostic NbrSignal, remote diagnostic None
  Remote state Down, version 1
                                                           Transmit
Address              State     Interface     Detect Time  Interval 
Multiplier
192.168.1.36         Down                          0.000     1.000 
  3
  Client RSVP-OAM, TX interval 0.050, RX interval 0.050
  Local diagnostic None, remote diagnostic None
  Remote state AdminDown, version 1
                                                           Transmit
Address              State     Interface     Detect Time  Interval 
Multiplier
192.168.1.36         Down                          0.000     1.000 
  3
  Client RSVP-OAM, TX interval 0.050, RX interval 0.050
  Local diagnostic None, remote diagnostic None
  Remote state AdminDown, version 1

4 sessions, 4 clients
Cumulative transmit rate 4.0 pps, cumulative receive rate 2.0 pps