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OSPF Network Design Solutions, Second Edition by Thomas M. Thomas

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Area Design Overview

When creating large-scale OSPF internetworks, the definition of areas and assignment of resources within areas must be done with a pragmatic view of your OSPF internetwork. This assignment of resources includes both physical and logical networking components so that optimal performance results. This section discusses some of the items that are applicable to designing any type of OSPF area. Specific considerations are discussed after each area type.

Areas are essentially small networks contained within the larger OSPF routing domain or AS, and as such, areas route only necessary traffic within themselves, thereby reducing overall network traffic. The capability of OSPF to create areas is key to its successful operation. These ...

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