Figure 7-35. Virtual Interface Configuration window
The following fields can be set or are displayed:
ParameterDescription
Transit Area ID Allows the entry of an OSPF Area ID − previously defined on the switch − that allows a remote area to communicate with the backbone (area 0). A Transit Area cannot be a Stub Area or a Backbone Area.
Neighbor Router | The OSPF router ID for the remote | ||
| router. This is a | ||
| the form of an IP address | ||
| (xxx.xxx.xxx.xxx) | that | uniquely |
| identifies the remote area’s Area | ||
| Border Router. |
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Status | Displays the current status (UP or | ||
| DOWN) of the corresponding OSPF | ||
| Virtual Interface. |
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Area Aggregation Configuration
Area Aggregation allows all of the routing information that may be contained within an area to be aggregated into a summary LSDB advertisement of just the network address and subnet mask. This allows for a reduction in the volume of LSDB advertisement traffic as well as a reduction in the memory overhead in the switch used to maintain routing tables.
