Enabling MPLS TE and RSVP-TE

MPLS TE and RSVP-TE must be enabled on each LSR in an MPLS domain before TE functions are configured.

If MPLS TE is disabled in the MPLS view, MPLS TE enabled in the interface view is also disabled. As a result, all CR-LSPs configured on this interface go Down, and all configurations associated with these CR-LSPs are deleted.
If MPLS TE is disabled in the interface view, all CR-LSPs on the interface go Down.
If RSVP-TE is disabled on an LSR, RSVP-TE is also disabled on all interfaces on this LSR.

Run system-view
The system view is displayed.
Run mpls lsr-id lsr-id
The LSR ID of the local node is configured.
When configuring an LSR ID, note the following:
- Configuring an LSR ID is the prerequisite of all MPLS configurations.
- An LSR ID must be manually configured because no default LSR ID is available.
- Use the IP address of a loopback interface on an LSR as an LSR ID.
  
  The undo mpls command deletes all MPLS configurations, including the established LDP sessions and LSPs.
Run mpls
The MPLS view is displayed.
Run mpls te
MPLS TE is enabled globally.
Run mpls rsvp-te
RSVP-TE is enabled.
Run quit
The system view is displayed.
Run interface interface-type interface-number
The view of the interface on which the MPLS TE tunnel is established is displayed.
Run mpls
MPLS is enabled on an interface.
Run mpls te
MPLS TE is enabled on the interface.
Run mpls rsvp-te
RSVP-TE is enabled on the interface.
Run commit
The configurations are committed.