show ip ospf area

This command displays information about the area for the specified virtual router. If no router is specified, it displays information for the default router. The areaid identifies the OSPF area that is being displayed.

Format show ip ospf area areaid [vrf vrf-name]
Mode
  • User EXEC
  • Privileged EXEC
Term Definition
AreaID The area id of the requested OSPF area.
External Routing A number representing the external routing capabilities for this area.
Spf Runs The number of times that the intra-area route table has been calculated using this area's link-state database.
Area Border Router Count The total number of area border routers reachable within this area.
Area LSA Count Total number of link-state advertisements in this area's link-state database, excluding AS External LSA's.
Area LSA Checksum A number representing the Area LSA Checksum for the specified AreaID excluding the external LS type 5) link-state advertisements.
Flood List Length The number of LSAs waiting to be flooded within the area.
Import Summary LSAs Shows whether to import summary LSAs.
OSPF Stub Metric Value The metric value of the stub area. This field displays only if the area is a configured as a stub area.

The following OSPF NSSA specific information displays only if the area is configured as an NSSA:

Term Definition
Import Summary LSAs Shows whether to import summary LSAs into the NSSA.
Redistribute into NSSA Shows whether to redistribute information into the NSSA.
Default Information Originate Shows whether to advertise a default route into the NSSA.
Default Metric The metric value for the default route advertised into the NSSA.
Default Metric Type The metric type for the default route advertised into the NSSA.
Translator Role The NSSA translator role of the ABR, which is always or candidate.
Translator Stability Interval The amount of time that an elected translator continues to perform its duties after it determines that its translator status has been deposed by another router.
Translator State Shows whether the ABR translator state is disabled, always, or elected.

Example: The following shows example CLI display output for the command.

(R1) #show ip ospf area 1

AreaID......................................... 0.0.0.1
External Routing............................... Import External LSAs
Spf Runs....................................... 10
Area Border Router Count....................... 0
Area LSA Count................................. 3004
Area LSA Checksum.............................. 0x5e0abed
Flood List Length.............................. 0
Import Summary LSAs............................ Enable

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