Based on the locally maintained LSDB, the device running the OSPF protocol calculates the shortest path tree with itself as the root through the SPF algorithm, and determines the next hop to the…

Based on the locally maintained LSDB, the device running the OSPF protocol calculates the shortest path tree with itself as the root through the SPF algorithm, and determines the next hop to the destination network based on this shortest path tree. If the network changes frequently, the maximum interval of the SPF calculation can be set to 0 to increase the speed of route convergence.