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Open Shortest Path First configuration
The following table describes the basic Open Shortest Path First (OSPF) commands. The following sections
provide more detailed information and commands.
Table 131 OSPF Configuration commands
Command Description
router ospf
Enter Router OSPF configuration mode.
Command mode: Router OSPF
area <0-2>
Configures the OSPF area.
Command mode: Router OSPF
area-range <0-16>
Configures the summary range.
Command mode: Router OSPF
ip ospf <1-249)>
Configures the OSPF interface.
Command mode: Interface IP
area-virtual-link <1-3>
Configures a Virtual Link.
Command mode: Router OSPF
message-digest-key <1-255>
md5-key <key string>
Assigns a string to MD5 authentication key.
Command mode: Router OSPF
host <1-128>
Configures an OSPF host route. Up to 128 host routes can be configured.
Host routes are used for advertising network device IP addresses to external
networks to perform server load balancing within OSPF. It also makes Area
Border Route (ABR) load sharing and ABR failover possible.
Command mode: Router OSPF
lsdb-limit <0-2000>
Sets the link state database limit.
Command mode: Router OSPF
[no] default-information
<1-16777214> <as-value>
Sets one default route among multiple choices in an area.
Command mode: Router OSPF
enable
Enables OSPF.
Command mode: Router OSPF
no enable
Disables OSPF.
Command mode: Router OSPF
show ip ospf
Displays the current OSPF configuration settings.
Command mode: All except User EXEC