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IS-IS Network Design Solutions by Scott Sturgess, Abe Martey

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Chapter 5. The IS-IS Link-State Database

In Chapter 3, “Integrated IS-IS Routing Protocol Concepts,” you read about the two main categories of IS-IS functional capabilities: the subnetwork-dependent and subnetwork-independent functions. As you might recall, the subnetwork-dependent functions are primarily responsible for adjacency formation and management, whereas the subnetwork-independent functions provide capabilities for exchanging and managing routing and related control information. The IS-IS routing engine represented in Figure 3-8 illustrates the functional organization of the key processes and subsystems that are responsible for the subnetwork-independent functions. The IS-IS Link-State database, which is featured prominently in the ...

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