A timer can be set so that mLDP P2MP tunnel re-optimization is triggered at the specified time if the network topology changes.
If the network topology changes, to prevent traffic congestion on paths of an mLDP P2MP tunnel that converge on a few links, appropriately perform mLDP P2MP re-optimization. If the upstream or downstream nodes are optional, an mLDP P2MP tunnel is reestablished over the updated path. To set the interval at which mLDP P2MP tunnel re-optimization is performed if the network topology changes, perform the following steps on a node along the mLDP P2MP tunnel:
The system view is displayed.
The MPLS-LDP view is displayed.
mLDP P2MP is enabled globally.
An mLDP P2MP tunnel re-optimization timer is set.
reoptimize-time-value is the interval between the time the network topology changes and the timer mLDP re-optimization is triggered.
The configuration is committed.