[j-nsp] vRR/L3VPN/Unusable

[Misak Khachatryan]

Hi,

I run two out of band vRR with all vpn flavors and families, and don't need to have family mpls enabled on interfaces. It's version 17.4 but i don't think that matters.

This should be enough:

routing-options {
   rib inet.3 {
       static {
           route 0.0.0.0/0<http://0.0.0.0/0> discard;
       }
   }
   rib inet6.3 {
       static {
           route ::/0 discard;
       }
   }
   resolution {
       rib bgp.l3vpn.0 {
           resolution-ribs [ inet.3 inet.0 ];
       }
   }
}


Best regards,
Misak Khachatryan,

On Wed, Sep 12, 2018 at 3:51 PM Jason Lixfeld <jason-jnsp at lixfeld.ca<mailto:jason-jnsp at lixfeld.ca>> wrote:
Hi Ivan,

I did not, and that did indeed fix it.  I don’t understand why it’s necessary so that’ll be my next read.

Thanks!

> On Sep 12, 2018, at 7:22 AM, Ivan Ivanov <ivanov.ivan at gmail.com<mailto:ivanov.ivan at gmail.com>> wrote:
>
> Hi Jason.
>
> Do you have 'family mpls' configured for the vRR interfaces? Although the RR is out of band you need that family configured on the RR interface.
>
> Ivan,
>
> On Wed, Sep 12, 2018 at 12:10 PM Jason Lixfeld <jason-jnsp at lixfeld.ca<mailto:jason-jnsp at lixfeld.ca> <mailto:jason-jnsp at lixfeld.ca<mailto:jason-jnsp at lixfeld.ca>>> wrote:
> Hi all,
>
> Trying to learn more about JunOS, I’m playing around with a vRR instance (18.2R1-S1.5), and I haven’t been able to get something sorted.
>
> This vRR instance is running as an out-of-band RR for a few LDP enabled PEs.  vRR is not running LDP so inet.3 is empty, but as far as I understand, any one of the two routing-options knobs configured below should be enough to provide for the prefixes in bgp.l3vpn.0 to be able to resolve their respective next-hops and bring the routes in the table out of hidden to active.  However that’s not happening.
>
> jlixfeld at rr01# show routing-options | display set | match rib
> set routing-options rib inet.3 static route 0.0.0.0/0<http://0.0.0.0/0> <http://0.0.0.0/0> discard
> set routing-options resolution rib bgp.l3vpn.0 resolution-ribs inet.0
>
> [edit]
> jlixfeld at rr01# run show route table bgp.l3vpn.0 9.9.9.9/32<http://9.9.9.9/32> <http://9.9.9.9/32> detail hidden
>
> bgp.l3vpn.0: 29 destinations, 49 routes (0 active, 0 holddown, 49 hidden)
> 12345:4:9.9.9.9/32<http://9.9.9.9/32> <http://9.9.9.9/32> (1 entry, 0 announced)
>          BGP    Preference: 170/-391
>                 Route Distinguisher: 12345:4
>                 Next hop type: Unusable, Next hop index: 0
>                 Address: 0x27b17bc
>                 Next-hop reference count: 53
>                 State: <Hidden Int Ext ProtectionPath ProtectionCand>
>                 Local AS: 12345 Peer AS: 12345
>                 Age: 1:52:31    Metric: 0
>                 Validation State: unverified
>                 Task: BGP_12345.10.15.48.11+179
>                 AS path: 11670 ?
>                 Communities: 12345:2000 12345:2010 target:12345:4
>                 Accepted
>                 VPN Label: 217
>                 Localpref: 390
>                 Router ID: 10.15.48.11
>
> [edit]
> jlixfeld at rr01# run show route table inet.0 10.15.48.11
>
> inet.0: 10 destinations, 10 routes (10 active, 0 holddown, 0 hidden)
> + = Active Route, - = Last Active, * = Both
>
> 10.15.48.11/32<http://10.15.48.11/32> <http://10.15.48.11/32>     *[IS-IS/18] 01:51:14, metric 30
>                     > to 10.15.49.67 via em1.0
>
> [edit]
> jlixfeld at rr01#
>
> Is there something less obvious that needs to happen before one of those two knobs above will work?
>
> FWIW, I haven’t played around with enabling LDP here, or configuring RIB groups because I’m not really interested in exploring those as solutions if I can help it; they seem a little too heavy handed when the aforementioned two knobs should probably work fine?
>
> Thanks in advance!
> _______________________________________________
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>
>
> --
> Best Regards!
>
> Ivan Ivanov

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