Command Line Interface
1068 1553-KDU 137 365 Uen D 2006-06-16
Command Usage
• All routers in a stub must be configured with the same area ID.
• Routing table space is saved in a stub by blocking Type-4 AS summary
LSAs and Type 5 external LSAs. The default setting for this command
completely isolates the stub by blocking Type-3 summary LSAs that
advertise the default route for destinations external to the local area or
the autonomous system.
• Use the area default-cost command to specify the cost of a
default summary route sent into a stub by an ABR.
• This router supports up to 16 total areas (either normal transit areas,
stubs, or NSSAs).
Example
This example creates a stub area 10.2.0.0, and assigns all interfaces with class
B addresses 10.2.x.x to the stub.
Related Commands
area default-cost (section 7.26.25 on page 1062)
7.26.30 area nssa
This command defines a not-so-stubby area (NSSA). To remove an NSSA, use
the no form without any optional keywords. To remove an optional attribute, use
the no form without the relevant keyword.
Syntax
[no] area <area-id> nssa [no-redistribution] [default-
information-originate]
• area-id - Identifies the NSSA.
(The area ID must be in the form of an IP address.)
Console(config-router)#area 10.2.0.0 stub
Console(config-router)#network 10.2.0.0 0.255.255.255 area 10.2.0.0
Console(config-router)#
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