igp sync delay on-restart
Use igp sync delay on-restart to set the maximum delay for LDP to notify IGP of the LDP-IGP synchronization status after an LDP restart or an active/standby switchover occurs.
Use undo igp sync delay on-restart to restore the default.
Syntax
igp sync delay on-restart time
undo igp sync delay on-restart
Default
The maximum notification delay is 90 seconds.
Views
LDP view
Predefined user roles
network-admin
Parameters
time: Specifies the maximum notification delay in the range of 60 to 600 seconds.
Usage guidelines
When an LDP restart or an active/standby switchover occurs, LDP takes time to converge. LDP notifies IGP of the LDP-IGP synchronization status as follows:
If a notification delay is not configured, LDP immediately notifies IGP of the current synchronization states during convergence, and then updates the states after LDP convergence. This could impact IGP processing.
If a notification delay is configured, LDP notifies IGP of the synchronization states in bulk when one of the following events occurs:
LDP recovers to the state before the restart or switchover.
The maximum delay timer expires.
Examples
# Set a 300-second maximum delay for LDP to notify IGP of the LDP-IGP synchronization status after an LDP restart or active/standby switchover occurs.
<Sysname> system-view [Sysname] mpls ldp [Sysname-ldp] igp sync delay on-restart 300
Related commands
igp sync delay
mpls ldp igp sync disable
mpls ldp sync (IS-IS view)
mpls ldp sync (OSPF view/OSPF area view)