Routing

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  • 1.  Trigger for activating qualified-next-hop

    Posted 07-01-2016 03:24

    Hi folks!

    I have a configuration like:

    static {

    route 192.168.1.0/24 {
       next-hop 10.255.32.1;
       qualified-next-hop 10.111.11.1 {
         preference 6;
    }}

    I want that the preferred route was 10.255.32.1 and alternative 10.111.11.1. And as I can see it works so now.  10.255.32.1 is reacheble only through interface xe-0/0/0, and 10.111.11.1 only through xe-0/0/1. The question is, if 10.255.32.1 will become unreachible, but xe-0/0/0 will stay UP. Will the qualified-next-hop be activated? If not, how can I do that?

    Thank you in advance!



  • 2.  RE: Trigger for activating qualified-next-hop
    Best Answer

     
    Posted 07-01-2016 03:43

    Hi,

     

    With this config I believe if the next-hop is not reachable but the direct interface [xe-0/0/0] is stil Up the static route will remain active with the next-hop preferred.

    Using BFD [if next-hop supports BFD] or RPM with the static route config to monitor the next-hop may be the solution.

     

    Some links:

    http://www.juniper.net/techpubs/en_US/junos14.2/topics/example/policy-static-routes-bfd.html

    http://kb.juniper.net/InfoCenter/index?page=content&id=KB25052&smlogin=true&actp=search

     

    Cheers,

    Ashvin


    #BFD
    #RPM


  • 3.  RE: Trigger for activating qualified-next-hop

    Posted 07-01-2016 04:04

    Thank you for your suggestion, i also was thinking about BFD.