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Top-Down Network Design, Third Edition by Priscilla Oppenheimer

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Chapter 11. Selecting Technologies and Devices for Enterprise Networks

This chapter presents technologies for the remote-access and wide-area network (WAN) components of an enterprise network design. The chapter discusses physical and data link layer protocols and enterprise network devices, such as remote-access servers, routers, firewalls, and virtual private network (VPN) concentrators.

The chapter begins with a discussion of the following remote-access technologies:

• Point-to-Point Protocol (PPP)

• Cable modems

• Digital subscriber line (DSL)

After discussing remote-access technologies, the chapter presents options for selecting WAN and remote-access capacities with the North American Digital Hierarchy, the European E system, or the Synchronous ...

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