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Business Data Communications and Networking, Eleventh Edition
book

Business Data Communications and Networking, Eleventh Edition

by Jerry Fitzgerald, Alan Dennis, Alexandra Durcikova
August 2011
Intermediate to advanced content levelIntermediate to advanced
592 pages
20h 28m
English
Wiley
Content preview from Business Data Communications and Networking, Eleventh Edition

CHAPTER 8

WIDE AREA NETWORKS

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MOST ORGANIZATIONS do not build their own metropolitan or long-distance communication circuits, preferring instead to lease them from common carriers or to use the Internet. Therefore, this chapter focuses on the WAN architectures and telecommunications services offered by common carriers for use in WANs, not the underlying technology that the carriers use to provide them. We discuss the four principal types of WAN services that are available: circuit-switched services, dedicated-circuit services, packet-switched services, and virtual private network (VPN) services. We conclude by discussing how to improve WAN performance and how to select services to build WANs.

OBJECTIVES images

  • Understand circuit-switched services and architectures
  • Understand dedicated-circuit services and architectures
  • Understand packet-switched services and architectures
  • Understand Internet-based VPN services and architectures
  • Understand the best practice recommendations for WAN design
  • Be familiar with how to improve WAN performance

CHAPTER OUTLINE images

8.1 INTRODUCTION

8.2 CIRCUIT-SWITCHED NETWORKS

8.2.1 Basic Architecture

8.2.2 Plain Old Telephone Service

8.2.3 Integrated Services Digital ...

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Publisher Resources

ISBN: 9781118086834