[j-nsp] vRR/L3VPN/Unusable

[Jason Lixfeld]

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 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 detail hidden

bgp.l3vpn.0: 29 destinations, 49 routes (0 active, 0 holddown, 49 hidden)
12345:4:9.9.9.9/32 (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     *[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!