This section describes how to configure LDP session flapping suppression to prevent resource waste caused by LDP session flapping.
If an LDP session goes down due to a protocol or interface fault, LDP immediately attempts to reestablish the LDP session to ensure the fastest LDP hard convergence. For an LDP session that alternates between up and down multiple times within a period of time, the involved upstream and downstream LSPs are frequently created and deleted, wasting resources. To prevent this problem, LDP session flapping suppression is enabled by default.
For an LDP network that is stable, you can disable LDP session flapping suppression.
The system view is displayed.
MPLS is enabled globally, and the MPLS view is displayed.
LDP is enabled globally, and the MPLS-LDP view is displayed.
LDP session flapping suppression is disabled.
The configuration is committed.