DGS-6604 m area stub
CLI Reference Guide
45
area stub
Use this command to configure an area as a stub area. Use the no area stub
command to disable this function.
area AREA-ID stub [no-summary]
no area AREA-ID stub [no-summary]
Default Stub areas are not configured.
Summary link advertisements are sent into the stub area.
Command Mode Router configuration
Usage Guideline When employed, this command must be configured on all routers and access
servers in the stub area. Use area default-cost to specify the cost of the default
internal route sent into a stub area by an Area Border Router (ABR).
Two router configuration commands, area stub and area default-cost are used
for stub area router configuration. In all routers attached to the stub area,
configure the area using the area stub command. Use the area default-cost
command only for ABRs attached to the stub area.
To prevent advertising LSA summaries into a stub area use the no-summary
option on ABRs attached to the stub area. The area is defined as a “totally
stubby” area using the area stub no-summary command on the ABR.
The default summary route (Type 3) will be generated to the stub area (or NSSA
area) when no-summary is specified in the command.
Example This command show how to set stub area:
Verify the settings by entering the show ip ospf command.
Syntax Description
AREA-ID Specifies the identifier of the stub area. The identifier can be specified as either
an IP address or a decimal value.
no-summary (Optional) When this option is specified, an ABR will not send summary link
advertisements into the stub area.
Switch# configure terminal
Switch(config)# router ospf
Switch(config-router)# area 1 stub
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