OSPF Version 2 and OSPF Version 3 Monitoring and Troubleshooting

Table 27 summarizes the command-line interface (CLI) commands you can use to monitor Open Shortest Path First (OSPF) protocol version 2 and OSPF version 3. In the table, the commands are grouped by functionality. In the remainder of this chapter, they are explained alphabetically.

Table 27: Commands for Monitoring OSPF

Task or Information to Monitor	Command
Status of interfaces on which OSPF is running	`show (ospf \| ospf3) interface`
Link-state database entries for OSPF version 2 Link-state database entries for OSPF version 3 Clear link-state database entries	`show ospf database`
	`show ospf3 database`
	`clear (ospf \| ospf3) database`
OSPF routing table entries	`show (ospf \| ospf3) route`
Adjacent routers	`show (ospf \| ospf3) neighbor`
Adjacent routers	`clear (ospf \| ospf3) neighbor`
SPF log	`show ospf log`
OSPF input and output statistics	`show ospf io-statistics`
General OSPF statistics	`show ospf statistics`
General OSPF statistics	`clear ospf statistics`