Routing

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  • 1.  Does VRF automatically advertise direct links ?

    Posted 09-18-2025 22:54

    root@J2-PE# run show route table CustA.inet.0 protocol local

    CustA.inet.0: 10 destinations, 16 routes (10 active, 0 holddown, 0 hidden)
    + = Active Route, - = Last Active, * = Both

    10.52.2.22/32      *[Local/0] 00:38:20
                          Local via ge-0/0/0.0
    10.220.22.22/32    *[Local/0] 00:15:37
                          Local via lo0.1

    Are they supposed to be advertised via BGP to other PEs ?

    I thought they are not, unless I need to configure vrf-table-label, right ?

    But loopback is automatically advertised, as it is allovated VPN label, right ?

    thanks !!



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  • 2.  RE: Does VRF automatically advertise direct links ?

    Posted 09-19-2025 09:21
    1. you don't advertise local routes. you may advertise direct routes.
    2. if you didn't do anything special with some export policies for the VRF, nothing is advertised except bgp.


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    Olivier Benghozi
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  • 3.  RE: Does VRF automatically advertise direct links ?

    Posted 09-25-2025 12:17

    Most of the deployment has vrf-table-label or we even recommend to have vrf-table-label. With that PE-CE interface will be advertised through bgp inet-vpn to remote PE or through RR. Not sure about the purpose. If you need more control over what to be sent, what not, please use specific vrf-export policy do achieve 



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    mengzhe hu
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  • 4.  RE: Does VRF automatically advertise direct links ?

    Posted 10-08-2025 21:19

    thanks !!

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