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Remote LFA(LDP) over OSPF with explicit RSVP Path

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  • 1.  Remote LFA(LDP) over OSPF with explicit RSVP Path

    Posted 05-10-2018 01:30

    Hi All

     

    Due to ring topology , I enabled remote LFA(LDP) in my OSPF enviroment and looks like be fine.

    But can I also have an explicit RSVP path at the same time for some purpose ?

    If yes, the traffic should follow RSVP routing,right ? 

     

    thnaks 

     

    My confirguration is as follow:

     

    > show protocols rsvp
    Interface ge-5/1/0.0;
    interface xe-2/1/3.0;

     

    > show protocols ldp 

    auto-targeted-session {
    teardown-delay 20;
    maximum-sessions 60;
    }

    interface xe-2/1/3.0 {
    link-protection;
    }
    interface ge-5/1/0.0 {
    link-protection;
    }

     

    > show protocols mpls 

    no-cspf;

    label-switched-path KR02-->KR01 {
    to 192.168.144.2;
    primary KR02-->KR01;
    secondary KR02->JP_HK->KR01;
    }
    path KR02-->KR01 {
    10.6.100.41 strict;
    192.168.144.41 strict;
    }
    path KR02->JP_HK->KR01 {
    10.7.100.49 strict;
    172.16.128.49 strict;
    }

    interface ge-5/1/0.0;
    interface xe-2/1/3.0;

     

    > show configuration protocols ospf
    topology default {
    backup-spf-options {
    remote-backup-calculation;
    }
    }
    backup-spf-options {
    remote-backup-calculation;
    }
    traffic-engineering;

    area 0.0.0.0 {

    interface ge-5/1/0.0 {
    interface-type p2p;
    link-protection;
    metric 2;
    bfd-liveness-detection {
    minimum-interval 100;
    }
    interface xe-2/1/3.0 {
    interface-type p2p;
    link-protection;
    metric 5;
    bfd-liveness-detection {
    minimum-interval 100;
    }
    }


    #LSP


  • 2.  RE: Remote LFA(LDP) over OSPF with explicit RSVP Path
    Best Answer

    Posted 05-10-2018 03:50

    Hello,


    @Cloud wrote:

     

    But can I also have an explicit RSVP path at the same time for some purpose ?

     


    You can have many RSVP LSPs with different names between same 2 nodes, if that was the question.

     


    @Cloud wrote:

    Hi All

     

     

    If yes, the traffic should follow RSVP routing,right ? 

     


    By default yes, RSVP preference is 7, and LDP preference is 9.

    If You want these RSVP LSP to be used only for LDP LFA, then add "no-install-to-address" knob to each LSP.

    HTH

    Thx

    Alex