What command is used to display the OSPF topology database?

The command to display the OSPF topology database is "show ip ospf database." This command provides detailed information about the OSPF Link-State Database (LSDB), which contains all the OSPF routers and their links within the OSPF area. By examining the OSPF database, network engineers can gain insights into the routing decisions made by OSPF, troubleshoot routing issues, and understand the overall OSPF topology.

The output of this command lists all the OSPF router link states and provides various fields, including the age of the LSA (Link State Advertisement), the sequence number, and the router ID, which can help in analyzing the network's state and topology. This information is crucial for OSPF operations, as it facilitates the calculation of the shortest path first (SPF) algorithm.

Other commands serve different purposes; for example, "show ip route" displays the entire routing table, including static and dynamic routes, but does not specifically focus on OSPF information. "show ip ospf neighbors" lists OSPF neighbor relationships and their states but does not provide the details of the topology. "display ospf summary" is a command that is not typically associated with Cisco IOS, so may