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One router, different routing-instance, with different validation state for the same prefix.

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  • 1.  One router, different routing-instance, with different validation state for the same prefix.

    Posted 08-18-2022 11:12
    Hello,
    Good day.

    We found there are some prefixes with wrong "Validation State" in one routing instance.

    Prefix: 5.105.41.0/24
    ROA: no record, so the status for ROV should be "UNKNOWN"

    Model: mx2008
    Junos: 18.4R3-S10

    AAA_U.inet.0: 901589 destinations, 904074 routes (898069 active, 0 holddown, 3581 hidden)
    5.105.41.0/24 (1 entry, 1 announced)
    *BGP Preference: 170/-100
    Next hop type: Router, Next hop index: 1286
    Address: 0x4140380ec
    Next-hop reference count: 1795312
    Source: xx.xx.xx.xx
    Next hop: xx.xx.xx.xx via xe-3/1/0.0, selected
    Session Id: 0x273
    State: <Active Ext>
    Peer AS: aaaa
    Age: 2d 12:05:44 Metric: 100
    Validation State: invalid
    Task: BGP_aaaa.xx.xx.xx.xx
    Announcement bits (4): 0-KRT 2-BGP_RT_Background 3-Resolve tree 33 5-RT
    AS path: xxxxx 12389 39238 39238 39238 49392 398343 I
    Communities: 17152:2
    Accepted
    Localpref: 99
    Router ID: yy.yy.yy.yy


    BBB_U.inet.0: 881139 destinations, 883648 routes (879860 active, 0 holddown, 1295 hidden)
    5.105.41.0/24 (1 entry, 1 announced)
    *BGP Preference: 170/-91
    Next hop type: Router, Next hop index: 1271
    Address: 0x67d530c
    Next-hop reference count: 1756674
    Source: zz.zz.zz.zz
    Next hop: zz.zz.zz.zz via xe-3/1/9.0, selected
    Session Id: 0x1c1
    State: <Active Ext>
    Peer AS: bbbb
    Age: 2d 4:13:26 Metric: 100
    Validation State: unknown
    Task: BGP_bbbb.zz.zz.zz.zz
    Announcement bits (4): 1-KRT 3-BGP_RT_Background 4-Resolve tree 8 5-RT
    AS path: bbbb 31133 39238 39238 39238 49392 398343 I
    Communities: 17152:1
    Accepted
    Localpref: 90
    Router ID: ww.ww.ww.ww


    All validation sessions status are UP.

    Would you please share the possible cause?

    Thanks a lot.
    Best regards,
    James

    ------------------------------
    James Cheng
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