MPLS/LDP neighbour issue

Hi All,

I have two RB1000s that will not establish LDP via OSPF. In the debug logging i get no messages to show that it even tries to establish an LDP neighbourship.

The config should work as each of the routers has working LDP neighbours.

L2 MTU is not an issue as the working LDP neighbours traverse virtually the same L2 network except one link (Ubiquiti AirFiber).

I have requested support from MikroTik but require to upgrade to latest ROS image which will occur over night.

[admin@RB1000_1] > mpls ldp p
                       enabled: yes
                        lsr-id: x.x.x.x
             transport-address: x.x.x.x
             path-vector-limit: 255
                     hop-limit: 255
                   loop-detect: no
             use-explicit-null: no
  distribute-for-default-route: no
[admin@RB1000_1] > mpls interface p
Flags: X - disabled, * - default 
 #    INTERFACE                                                        MPLS-MTU
 0  * all                                                                  1508
[admin@RB1000_1] > mpls ldp interface p
Flags: X - disabled, I - invalid 
 #   INTERFACE                        HELLO-INTERVAL       HOLD-TIME           
 0   ether1-vlan37                    5s                   15s                 
 1   ether1.vlan31                    5s                   15s



[admin@RB1000_2] > mpls ldp p
                       enabled: yes
                        lsr-id: y.y.y.y
             transport-address: y.y.y.y
             path-vector-limit: 255
                     hop-limit: 255
                   loop-detect: no
             use-explicit-null: no
  distribute-for-default-route: no
[admin@RB1000_2] > mpls ldp int p 
Flags: X - disabled, I - invalid 
 #   INTERFACE                                                                                                                                                                                                   HELLO-INTERVAL       HOLD-TIME           
 0   ether1-vlan32                                                                                                                                                                                               5s                   15s                 
 1   ether1-vlan34                                                                                                                                                                                               5s                   15s                 
 2   ether1-vlan31                                                                                                                                                                                               5s                   15s                 
[admin@RB1000_2] > mpls in p
Flags: X - disabled, * - default 
 #    INTERFACE                                                                                                                                                                                                                                  MPLS-MTU
 0  * all                                                                                                                                                                                                                                             1508