Choose Tools→Route Analysis→MPLS Topology→IGP_Administrative_Domain from the NFM-P main menu.

The MPLS topology map appears showing the network objects.

Right-click on the map area and choose LDP Links→Missing Links→Find Missing LDP Links from the MPLS topology view contextual menu. The List Missing LDP Links dialog box opens. To list non-managed missing links, click on the Yes button. Otherwise, click on the No button. The missing links are highlighted on the map.

Close the MPLS topology map.

End of steps