Area Configuration - Dell PowerConnect 6224 User Manual

Area Configuration

The OSPF Area Configuration page lets you create a Stub area configuration and NSSA once you've
enabled OSPF on an interface through Routing → OSPF → Interface Configuration. At least one router
must have OSPF enabled for this web page to display.
To display the page, click Routing → OSPF → Area Configuration in the tree view. If a Stub Area has
been created, the fields in the Stub Area Information are available. If a NSSA has been created, the fields
in the NSSA Area Information are available.
Figure 9-7. OSPF Area Configuration
The OSPF Area Configuration page displays the following fields:
• Area — Select the area to be displayed from the drop-down menu. When an area is selected, fields in
the Stub Area Information are displayed.
• Area ID — The OSPF area. An Area ID is a 32-bit integer in dotted decimal format that uniquely
identifies the area to which a router interface connects.
• External Routing — A definition of the router's capabilities for the area, including whether or not AS-
external-LSAs are flooded into/throughout the area. If the area is a stub area, then these are the
possible options for which you may configure the external routing capability, otherwise the only option
is Import External LSAs.
• SPF Runs — The number of times that the intra-area route table has been calculated using this area's
link-state database. This is typically done using Dijkstra's algorithm.
• Area Border Router Count — The total number of area border routers reachable within this area. This
is initially zero, and is calculated in each SPF Pass.
• Area LSA Count — The total number of link-state advertisements in this area's link-state database,
excluding AS External LSAs.
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Configuring Routing