(Optional) Configuring Auto Bypass Tunnel Re-Optimization

Context

Network changes often cause the changes in optimal paths. Auto Bypass tunnel re-optimization allows paths to be recalculated at certain intervals for an auto bypass tunnel. If an optimal path to the same destination is found due to some reasons, such as the changes in the cost, a new auto bypass tunnel will be set up over this optimal path. In this manner, network resources are optimized.

Perform the following configurations on the PLR.

Procedure

Run system-view
The system view is displayed.
Run mpls
The MPLS view is displayed.
Run mpls te auto-frr reoptimization [ frequency interval ]
Auto bypass tunnel re-optimization is enabled.

By default, auto bypass tunnel re-optimization is disabled. If re-optimization is enabled, the default interval at which auto bypass tunnel re-optimization is performed is 3600 seconds.
(Optional) Immediately re-optimize the TE tunnels.
1. Run return
  Return to the user view.
2. Run mpls te reoptimization
  Manual re-optimization is enabled.
  
  After you configure the automatic re-optimization in the tunnel interface view, you can return to the user view and run the mpls te reoptimization command to immediately re-optimize the TE tunnels. After you perform the manual re-optimization, the timer of the automatic re-optimization is reset and counts again.