Chapter 3. Network Technologies

This chapter provides an overview of current local-area network (LAN), wide-area network (WAN), and metropolitan-area network (MAN) technologies, emphasizing their use in deploying IP networks. In particular, you will learn about the following:

Packet, circuit, and message switching This section introduces these three switching paradigms and discusses how they relate to IP networks.

Local-area networks and technologies You will read about the difference between token passing and collision-detection technologies. Then, we describe why Ethernet has become a ubiquitous form of LAN technology. Finally, we introduce the basic operation of IP over Ethernet.

Wide-area networks and technologies This section contrasts ...

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