Configuring CRLSP backup

CRLSP backup provides end-to-end CRLSP protection. Only MPLS TE tunnels established through RSVP-TE support CRLSP backup.

Perform this task on the ingress node of an MPLS TE tunnel.

To configure CRLSP backup:

Step

Command

Remarks

1. Enter system view.

system-view

N/A

2. Enter MPLS TE tunnel interface view.

interface tunnel tunnel-number [ mode mpls-te ]

N/A

3. Enable tunnel backup and specify the backup mode.

mpls te backup { hot-standby | ordinary }

By default, tunnel backup is disabled.

4. Specify a path for the primary CRLSP and set the preference of the path.

mpls te path preference value { dynamic | explicit-path path-name } [ no-cspf ]

By default, MPLS TE uses the dynamically calculated path to set up the primary CRLSP.

5. Specify a path for the backup CRLSP and set the preference of the path.

mpls te backup-path preference value { dynamic | explicit-path path-name } [ no-cspf ]

By default, MPLS TE uses the dynamically calculated path to set up the backup CRLSP.