It 240

It 240

CHAPTER

4

Networking Technologies

Topics Covered in this Chapter
4.1 ETHERNET 4.2 PLANNING AN ETHERNET NETWORK 4.3 TOKEN RING 4.4 LOCALTALK 4.5 802.11 WIRELESS STANDARD 4.6 BLUETOOTH

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ISBN: 0-536-32959-1

Local Area Networks, by Patrick Regan. Published by Prentice-Hall. Copyright © 2006 by Pearson Education, Inc.

Introduction
In chapter 3, you learned about the building blocks of a network. These building blocks, including cables and connection devices, form the network. In this chapter, you will look at the different LAN technologies such as Ethernet, Token Ring, and 802.11 wireless networks.

Objectives
â– 

Specify the main features (speed, access, method, topology, and media) of 802.3 (Ethernet) and 802.5 (Token Ring). â–  Specify the characteristics, including speed, length, topology, and cable type, for 802.3 (Ethernet) standards, 10BaseT, 100BaseTX, 10Base2, 10Base5, 100BaseFX, and Gigabit Ethernet. â–  Specify the main features and characteristics of 802.11 (wireless LANs).

â– 

Given a troubleshooting scenario involving a network failure, identify the cause of the failure. â–  Build a coaxial (thinnet) Ethernet network. â–  Build a UTP Ethernet network. â–  Explain how to build a Token Ring network.

4.1

ETHERNET
Currently, three LAN technologies are being used. A LAN technology defines topologies, packet structures, and access methods that can be used together on a segment. LAN technologies include Ethernet, Token Ring, and ARCnet. Out of these, Ethernet is the most widely used LAN technology today. It offers a good balance of speed, price, reliability, and ease of installation. More than 85 percent of all LAN connections installed are Ethernet. All popular operating systems and applications are Ethernet-compatible, as are upper-layer protocol stacks such as TCP/IP, IPX, and NetBEUI. The original Ethernet network was developed by Digital, Intel, and Xerox in the early 1970s. This version currently is referred to...