(Optional) Setting Leaf Switching and Deletion Delays

To prevent two copies of traffic on a P2MP TE tunnel's egress, a leaf CR-LSP switchover hold-off time and a deletion hold-off time can be set for MBB.

Context

Before the primary sub-LSP is deleted, both the primary sub-LSP and Modified sub-LSP carry traffic. If the egress cannot receive traffic only from one sub-LSP, two copies of traffic exist. To prevent two copies of traffic, perform the following steps to reset the leaf CR-LSP switchover hold-off time and deletion hold-off time.

Procedure

Run system-view
The system view is displayed.
Run mpls
MPLS is enabled globally and the MPLS view is displayed.
Run mpls te
MPLS TE is enabled globally.

A leaf CR-LSP switchover hold-off time and deletion hold-off time can be set only after MPLS TE is enabled globally.
Run mpls te p2mp-te leaf switch-delay switch-time delete-delay delete-time
The leaf MBB switchover delay and deletion delay are set.
After the mpls te p2mp-te leaf switch-delay switch-time delete-delay delete-time command is run, traffic may be interrupted in the following scenarios:
- The modified sub-LSP has been ready on the ingress and the primary sub-LSP has been deleted, but the modified sub-LSP is not ready on the egress. If this occurs, when the ingress switches traffic to the modified sub-LSP, traffic is temporarily interrupted.
- The primary sub-LSP has been deleted, but the modified sub-LSP failure message cannot be immediately sent to the ingress. If this occurs, traffic is temporarily interrupted.
Run commit
The configuration is committed.