Standard Article

Wide Area Networks

  1. Yunhong Gu

Published Online: 13 JUL 2008

DOI: 10.1002/9780470050118.ecse458

Wiley Encyclopedia of Computer Science and Engineering

Wiley Encyclopedia of Computer Science and Engineering

How to Cite

Gu, Y. 2008. Wide Area Networks. Wiley Encyclopedia of Computer Science and Engineering. 1–7.

Author Information

  1. University of Illinois at Chicago, Chicago, Illinois

Publication History

  1. Published Online: 13 JUL 2008

Abstract

This article briefly describes wide area networks (WAN), which can be defined roughly as the computer networks that cover a broad geographical area. The Internet is the most typical WAN. Another example would be an intranet for a large enterprise that has multiple geographically distributed branches. This article explains WANs in the organization of the five-layer TCP/IP layered model. For each layer, typical hardware and software (protocols) for WANs are discussed, especially these popular technologies used in WANs today.

Keywords:

  • wide area networks (WAN);
  • computer networks;
  • Internet;
  • high speed networks