Chapter 7. Wide Area Networking
A wide area network (WAN) is a group of computer networks that are connected over long distances by telecommunications links, which can be either wireline or wireless. A number of WAN links can be used, each of which was developed to address specific requirements in data communications. To meet specific network and application needs, a number of WAN techniques (whether deployed over public or private networks) have been developed and become popular over the years. Leased lines offer the greatest network management control. With leased lines, a known amount of bandwidth is provisioned, and no one else has access to it; also, you know who the users are. The disadvantage is that leased lines are very costly, you pay ...
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