Secure synchronization prevents traffic loss after a device is restarted.
When the routers in an area just finish synchronizing the LSDBs, the LSDBs of these routers are different from each other. As a result, route flapping occurs. You can configure secure synchronization to solve this problem. This, however, may delay the establishment of the OSPF neighbor relationship.
The system view is displayed.
The OSPF view is displayed.
Secure synchronization is configured.
The configuration is committed.