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Syntax of the "no" Form
The no form of this command removes the cost value from the summary route that is sent by
default into the stub area identified by the area‐id:
no area area-id default-cost
Mode
Router configuration:
Default
1
Example
The following command sets the cost value for the stub area 10 as 99:
XSR(config)#interface serial 1/0
XSR(config-if<S1/0>)#ip address 172.16.101.5 255.255.255.252
XSR(config-if<S1/0>)#router ospf
XSR(config-router)#network 172.16.101.5 0.0.0.0 area 10
XSR(config-router)#area 10 stub no-summary
XSR(config-router)#area 10 default-cost 99
area nssa
This command configures an area as a Not So Stubby Area (NSSA) which allows some external
routes represented by external Link‐State Advertisements (LSAs) to be imported into it. This is in
contrast to a stub area that does not allow any external routes. External routes that are not
imported into an NSSA can be represented by means of a default route. It is used when an OSPF
inter‐network is connected to multiple non‐OSPF routing domains.
Syntax
area area-id nssa [default-information-originate]
area-id
default-information-
originate
Syntax of the "no" Form
The no form of this command changes the NSSA back to a plain area:
no area area-id nssa [default-information-originate]
Mode
Router configuration:
XSR(config-router)#
NSSA area expressed in decimals or IP addresses.
Generates a default of Type 7 into the NSSA. It is used when the
router is a NSSA ABR
XSR(config-router)#
OSPF Commands
XSR CLI Reference Guide 5-85
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