Chapter 7

WAN Concepts

Objectives

Upon completion of this chapter, you will be able to answer the following questions:

  • What is the purpose of a WAN?

  • How do WANs operate?

  • What are traditional WAN connectivity options?

  • What are modern WAN connectivity options?

  • What are internet-based connectivity options?

Key Terms

This chapter uses the following key terms. You can find the definitions in the Glossary.

enterprise campus network page 272

private WAN page 273

public WAN page 273

service provider page 273

point-to-point topology page 274

hub-and-spoke topology page 274

dual-homed topology page 274

fully meshed topology page 274

partially meshed topology page 274

hub router page 275

spoke router page 275

virtual circuit page 275

single-homed ...

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