Chapter 5. VLSM and Route Summarization

This chapter covers the following subjects:

  • VLSM: This section explains the issues and solutions when designing an internetwork that uses VLSM.

  • Manual Route Summarization: This section explains the concept of manual route summarization and describes how to design internetworks to allow easier summarization.

  • Autosummarization and Discontiguous Classful Networks: This section examines the autosummarization feature and explains how it must be considered in internetwork designs that use discontiguous networks.

While Chapter 4, “IP Routing: Static and Connected Routes,” focuses on topics related to IP routing, this chapter focuses on topics related to IP addressing: variable-length subnet masking (VLSM), manual route ...

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