Routing

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  • 1.  static routing next-table option

    This message was posted by a user wishing to remain anonymous
    Posted 26 days ago
    This message was posted by a user wishing to remain anonymous

    Dear Juniper,

    I am curious about the "next-table" option of "static routing".

    The topology is as follows.

    First, the below config is committed.
    "set routing-options static route 33.33.33.0/24 next-table VRF10.inet.0"

    After that, when I commit the below config, an error occurs.
    "set routing-instances VRF10 routing-options static route 11.11.11.0/24 next-table inet.0"

    [edit]
    root@XM1# commit
    error: [rib inet.0 routing-options static]
    next-table may loop
    error: configuration check-out failed"

    I searched on the internet and it says it's because of "loop protection".

    I'm curious aboutthe conditions under which loop protection occurs (when it occurs).

    And is it impossible to communicate between different routing instances with only static routing?



  • 2.  RE: static routing next-table option

    Posted 25 days ago
    Edited by Olivier Benghozi 25 days ago

    Yes, the config commit checks that you don't have at the same time a static route from the VRFs A to B, and from B to A (whatever the prefixes are, the default instance being like a VRF here):

    Commit fails with a "next-table may loop" message

    However you can go through a third VRF to circumvent this (stupid/ridiculous/absurd/nonsense) «feature».



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    Olivier Benghozi
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