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Hierarchy Level


Specify that this area not be flooded with AS external link-state advertisements (LSAs). You must include the stub statement when configuring all routing devices that are in the stub area.

The backbone cannot be configured as a stub area.

You cannot configure an area to be both a stub area and a not-so-stubby area (NSSA).


default-metric metric

Metric value, ranging from 1 through 16,777,215.


(Optional) Do not advertise routes into the stub area. If you include the default-metric option, only the default route is advertised.


(Optional) Flood summary LSAs into the stub area.

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.

Release Information

Statement introduced before Junos OS Release 7.4.

Support for the realm statement introduced in Junos OS Release 9.2.

Support for the realm statement introduced in Junos OS Release 9.2 for EX Series switches.