Parameter

Description

Area ID

An OSPF area identifier configured for a group of OSPF routers. (For information

 

on how to assign this identifier to a specific interface, see4.5.6.1.5 Configuring

 

OSPF.)

Type

Indicates area type:

 

Normal – An area which can send or receive external route information.

 

Stub – An area which cannot send or receive external route information. It relies

 

on a single default route provided by its Area Border Router (ABR) to access

 

destinations outside of the stub. A stub can be used to reduce the amount of

 

topology data that has to be exchanged over the network.

 

NSSA – A not so stubby area cannot send but can receive external route

 

information. The ABR imports external routes and floods this information to all

 

routers within the NSSA.

 

 

An Autonomous System Boundary Router (ASBR) can import external routes and flood this information to the entire Autonomous System.

NOTE: To add a new Area ID, use the <Add> button. (The default 0.0.0.0 indicates the OSPF backbone.) To modify or delete an existing Area ID, highlight the table entry with the cursor and select Enter.

WGS3 Layer 3 Switch User’s Manual

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