By configuring the tunnel reestablishment function, you can periodically recompute the route for a CR-LSP. If the route in recomputation is better than the route in use, a new CR-LSP is then established according to the recomputed route. In addition, services are switched to the new CR-LSP, and the previous CR-LSP is deleted.
Perform the following configurations on the ingress node of an MPLS TE tunnel.
The system view is displayed.
The tunnel interface view of the MPLS TE tunnel is displayed.
The interval for re-establishing a tunnel is specified.
By default, the interval for re-establishing a tunnel is 30 seconds.
The current tunnel configuration is committed.
If the establishment of a tunnel fails, the system attempts to reestablish the tunnel within the set interval and the maximum number of attempts is the set reestablishment times.