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IS-IS: Deployment in IP Networks by Alvaro Retana, Russ White

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A Case Study in Deploying IS-IS

Now that we've looked at the IS-IS protocol in detail and discussed some deployment options and questions, let's work through deploying IS-IS on a network to put some of this knowledge into use. The network we will implement IS-IS on is illustrated in Figure 4-9.

Figure 4-9. Network for IS-IS implementation case study

While this is a simple network in many respects—for instance, it's a two-layer design rather than a three-layer design—it will provide some interesting areas of consideration for implementing IS-IS. We'll first consider some fundamental questions, such as whether or not to divide the network into domains, ...

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