Establishing a backup CRLSP by using the path calculated by PCEs
Perform this task to enable the specified PCEs to calculate a backup CRLSP for the PCC. When the primary CRLSP fails, traffic is switched to the backup CRLSP to ensure continuous traffic forwarding.
To establish a backup CRLSP by using the path calculated by PCEs:
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. Establish a backup CRLSP by using the path calculated by PCEs. | mpls te backup-path preference value dynamic pce [ ip-address ]&<0-8> | By default, the automatically calculated path is used to establish a backup CRLSP. After this command is executed, the local device acts as a PCC and establishes PCEP sessions to the specified PCEs. If you do not specify a PCE, the local device establishes PCEP sessions to all discovered PCEs. |