O'Reilly logo

Network+ Training Guide by Mike Harwood, Drew Bird

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

WAN Technologies

Having looked at the differences between the various switching methods, we can now take a better look at the technologies used to create WANs. Several technologies, including the following, can be used to implement WANs:

  • Dial-up modem connections

  • ISDN

  • T-carrier lines

  • Fiber Distributed Data Interface (FDDI)

  • ATM

  • X.25

  • Frame Relay

  • Synchronous Optical Network (SONET)/OC-x

These technologies vary in terms of cost, complexity, and switching methods. We'll start our discussion by looking at perhaps the simplest of WAN technologies—the modem.

Dial-up Modem Connections

Today, people are more likely to associate a modem with a dial-up Internet service provider (ISP) account than with a WAN technology. But the reality is that for many years, and ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required