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

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Summary

The beginning of this chapter examines the fundamentals of network design and discusses basic design principles, such as hierarchy, scalability, and convergence. Addressing, summarization, and redistribution are noted as critical factors in designing a scalable network. Then, the chapter discusses and evaluates various design principles from the standpoint of IS-IS. The use of Integrated IS-IS as an IGP is covered in detail. This discussion considers the limitations and strengths of the IS-IS protocol and interaction with BGP.

Scaling issues are presented and the issues of network stability and convergence are discussed in relation to IS-IS. The size of a network is isolated as a key contributor to network performance. The effect of the ...

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