For totally stubby areas, only the ABR must have the no-summary keyword on the
area (area-id) stub no-summary command. However, including this keyword on internal routers does not cause a problem.
show ip ospf
–Confirms with one (highlighted) line that the router believes that the area is a stub area.
show ip ospf database summary 0.0.0.0
–By definition, this command lists all summary (Type 3) LSAs with prefix 0.0.0.0. It lists two such LSAs, created by R1 and R2 (RIDs 1.1.1.1 and 2.2.2.2, respectively), both with metric 1 (the default setting).
show ip ospf database database-summary
–This command lists statistics about the numbers of and types of LSAs in the database. The counters show 0 Type 5 LSAs, and a few dozen Type 3s–confirming that the area, while stubby, is not totally stubby.
area (area-id) stub no-summary command. However, including this keyword on internal routers does not cause a problem.
show ip ospf
–Confirms with one (highlighted) line that the router believes that the area is a stub area.
show ip ospf database summary 0.0.0.0
–By definition, this command lists all summary (Type 3) LSAs with prefix 0.0.0.0. It lists two such LSAs, created by R1 and R2 (RIDs 1.1.1.1 and 2.2.2.2, respectively), both with metric 1 (the default setting).
show ip ospf database database-summary
–This command lists statistics about the numbers of and types of LSAs in the database. The counters show 0 Type 5 LSAs, and a few dozen Type 3s–confirming that the area, while stubby, is not totally stubby.
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