Entry tags:
BGP label allocation failure: Need a nexthop address on LAN
> show route advertising-protocol bgp 172.21.16.67 table TEST.inet.0 detail
TEST.inet.0: 3 destinations, 3 routes (3 active, 0 holddown, 0 hidden)
* 10.67.7.72/29 (1 entry, 1 announced)
BGP group Router-Reflector-Clients type Internal
Route Distinguisher: 172.21.16.1:10
BGP label allocation failure: Need a nexthop address on LAN
Nexthop: Not advertised
Flags: Nexthop Change
Localpref: 100
AS path: [64580] I
Communities: target:64580:10
Эта багофича и workarounds описаны тут: https://kb.juniper.net/InfoCenter/index?page=content&id=KB12430
Обычно рекомендуют включить "vrf-table-label", но на самом деле он предназначен не для этого.