OSPF Commands Quiz

Study Notes

OSPF Commands

show ip route ospf: Displays routes added to the IP routing table by OSPF.
show ip route: Displays all routes in a router's routing table.
show ip route ip-address [mask]: Displays the specific route for a single destination address or subnet.
show ip ospf rib: Lists all routes known to the OSPF process.
show ip ospf neighbor: Lists all OSPF neighbors (both static and dynamically discovered).
show ip ospf neighbor detail: Shows detailed information about OSPF neighbors.
show ip ospf interface: Lists interfaces where OSPF is enabled.
show ip ospf interface brief: Provides a concise summary of OSPF interface information.
show ip protocols: Lists enabled protocols (if OSPF is enabled using the ip ospf area command).
show ip ospf interface: Shows the number of OSPF neighbors and fully adjacent neighbors known through each interface.
show ip ospf interface type number: Displays the interface type and number.
show ip protocols: Shows running IP protocols.
show ip ospf neighbor [detail]: Displays elapsed time since a neighborship was formed.
show ip ospf neighbor [detail]: Displays information about a specific OSPF neighbor.
show ip ospf interface [type number]: Displays configured Hello and Dead timers for an interface concerning OSPF.
show ip ospf database: Displays the OSPF (routing) database.
show ip ospf neighbor [detail]: Displays neighbor information.
show ip ospf database router: Lists all type 1 router LSAs (Link State Advertisements) known to a router.
show ip ospf database router lsid: Displays details of a specific type 1 router LSA (Link State Advertisement).
show ip ospf database network: Displays all type 2 network LSAs known to a router.
show ip ospf database network lsid: Displays details of a particular type 2 network LSA.
show ip ospf database summary: Displays all type 3 summary LSAs known to a router.
show ip ospf database summary lsid: Displays details of a particular type 3 router LSA.
show ip ospf interface: Lists OSPF interfaces.
show ip ospf interface brief: Provides a brief summary of OSPF interface configuration.
show ip ospf interface type number: Displays the interface type and number.
show ip ospf neighbor: Finds OSPF neighbors on a specified interface.
show ip ospf neighbor detail: Gives detailed information about OSPF neighbors.
show ip ospf database router [lsid]: Shows transit networks connected to a Type 1 LSA.
show ip ospf database: Shows the router that created and flooded this type 3 LSA.
show ip ospf database summary: Shows the router that created and flooded a type 2 LSA.
show ip ospf database: Shows router that created and flooded a type 1 LSA.
show ip ospf database router: Displays the IP address of the current DR and BDR on a LAN.
show ip ospf neighbor [detail]: This command displays the OSPF neighbor information, including interface type, cost of the interface, etc.
show ip ospf interface type number: Shows the cost of an OSPF interface (metric).
show ip route ospf: Displays all OSPF-learned routes.
show ip ospf [statistics]: Shows the statistics about the number of SPF (shortest path first) algorithm runs.