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

[Piotr Marecki]

Just quick shot :
Since BFD for LSP uses mpls lsp ping as an bootstrap/periodic control plane 
verification , it probably needs 127.0.0.1/32 address to be configured on 
both routers lo0 interfaces.
So , add 127.0.0.1/32 to your lo0 stanzas



Piotr Marecki

----- Original Message ----- 
From: "Gard Undheim" <gard at ipnett.no>
To: <juniper-nsp at puck.nether.net>
Sent: Thursday, January 10, 2008 3:00 PM
Subject: [j-nsp] BFD over RSVP LSPs with teardown as action


> 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
>
>
>
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