Quick Reference Guide

OSPF Commands | 439
show ip ospf
This command displays information relevant to the OSPF router. This command takes no options.
Syntax
show ip ospf
Mode
Privileged Exec
Example
Figure 23-134. Example Output from the show ip ospf Command
Report Fields
Router ID—Is a 32-bit integer in dotted decimal format identifying the router, about which information is
displayed. This is a configured value.
OSPF Admin Mode—The administrative mode of OSPF in the router. This is a configured value.
ASBR Mode—Reflects whether the ASBR mode is enabled or disabled. Enable implies that the router is
an autonomous system border router. Router automatically becomes an ASBR when it is configured to
redistribute routes learnt from other protocol. The possible values for the ASBR status is enabled (if the
router is configured to re-distribute routes learnt by other protocols) or disabled (if the router is not
configured for the same).
RFC 1583 Compatibility—Reflects whether 1583 compatibility is enabled or disabled. This is a
configured value.
The information below is only displayed if OSPF is enabled:
ABR Status—Reflects the whether or not the router is an OSPF Area Border Router
Exit Overflow Interval—The number of seconds that, after entering OverflowState, a router will attempt
to leave OverflowState
External LSA count—The number of external (LS type 5) link-state advertisements in the link-state
database
External LSA Checksum—A number representing the sum of the LS checksums of external link-state
advertisements contained in the link-state database
New LSAs Originated—The number of new link-state advertisements that have been originated
LSAs Received—The number of link-state advertisements received determined to be new instantiations
External LSDB Limit—The maximum number of non-default AS-external-LSAs entries that can be
stored in the link-state database
Default-metric—Default value for redistributed routes
Source—Source protocol/routes that are being redistributed
Metric-value—Metric of the routes being redistributed
S50V-1#show ip ospf
Router ID...................................... 0.0.0.0
OSPF Admin Mode................................ Disable
ASBR Mode...................................... Disable
RFC 1583 Compatibility......................... Enable
OSPF must first be initialized for the switch.