Owner's Manual

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OSPF -> Areas
The Areas screen contains information for defining and maintaining OSPF areas within which
interfaces and virtual links are defined. Once you create an OSPF area, OSPF is automatically
enabled on all IP interfaces.
Figure 13-108. Routing OSPF Areas
Yo u c an Edit listed settings for the selected device in this screen. Click Remove to delete a selected,
listed item. Click
Add to create a new group of settings, or select an existing interface listed in the
upper portion of the screen and click
Edit the editor opens with the following fields:
-
Area ID —The area ID. The format is an IP address.
-
AS External —Indicates whether this is a stub area. If it cannot import external LSAs, the area is
a stub area. Otherwise, the area allows importing autonomous system (AS) external link state
advertisements (LSA). Selectable options include
nssa, external, stub .
-
Stub Metric —(0-16777215) The metric of the default route created for the stub area. Stub areas
do not import external AS. Therefore, a default route is created by the area border router for
the stub area.