Run the display this command in the interface view. If the following information is displayed:
shutdown
The interface is shut down.
If the interface is shut down, run the undo shutdown command to start the interface.
Run the display current-configuration command in any view to check whether MPLS-related configurations exist.
mplsThe MPLS configuration is deleted.
mpls ldpThe MPLS LDP configuration is deleted.
mpls ldp remote-peerThe remote LDP session is deleted.
If MPLS-related configurations are deleted, run the corresponding commands to restore the configurations.