本书补充数据通信方面的材料，介绍了信息源和信号、传输、调制、调制解调器、复用与解复用，接入与互连技术；新增网络性能一章，包括QOS和区分服务；扩充无线联网技术的篇幅，包括蓝牙，Wi-Fi、WiMax和802.11-2007协议；新增网络技术及发展趋势两章内容，涵盖了虚拟化社区网络应用等内容；介绍蜂窝电话网络及其标准，帮助读者了解蜂窝移动通信如何采纳使用因特网协议；介绍如何通过实时传输协议进行多媒体传输。

本书由畅销书作者和网络领域的权威专家Douglas Comer教授编著，全面而系统地介绍了计算机网络知识。全书分5大部分共32章，涵盖的内容广泛，包括网桥、交换、路由与路由协议、多媒体协议与IP技术，以及Web浏览等。本书第5版在前几版的基础上进行了重新组织和全面修订，新增了无线网络协议、网络性能等最新技术主题。本书适合作为高等学校计算机、通信、电子等专业的教材或参考书。

Preface

PART Ⅰ Introduction And internet Applications

 Chapter 1 Introduction And Overview

1.1 Growth Of Computer Networking

1.2 WhV Networking Seems Complex

1.3 The Five Key ASDects Of Networking

1.4 Public And Private Parts Of The internet

1.5 Networks, Interoperability, And Standards

1.6 Protocol Suites And Layering Models

1.7 How Data Passes Through Layers

1.8 Headers And Lavers

1.9 ISO and the OSI Seven Laver Reference Model

1.10 The inside ScoOD

1.11 Remainder Of The Text

1.12 Summary

 Chapter 2 Internet Trends

 Chapter 3 Internet Applications And Network Proqrammina

 Chapter 4 Traditional Internet Applications

PART Ⅱ Data Communication Basics

 Chapter 5 Overview Of Data Communications

 Chapter 6 Information Sources And Signals

 Chapter 7 Transmission Media

 Chapter & Reliability And Channel Coding

 Chapter 9 Transmission Modes

 Chapter 10 Modulation And Modems

 Chapter 11 Multiplexing And Demultiplexing (Channelization)

 Chapter 12 Access And Interconnection Technologies

PART Ⅲ Packet Switching And Network Technologies

 Chapter 13 Local Area Networks: Packets, Frames, And Topologies

 Chapter 14 The IEEE MAC Sub-Layer

 Chapter 15 Wired LAN Technology (Ethernet And 802.3)

 Chapter 16 Wireless Networking Technologies 267

 Chapter 17 LAN Extensions: Fiber Modems, Repeaters, Bridges, and Switches

 Chapter 18 WAN Technologies And Dynamic Routing 305

 Chapter 19 Networking Technologies Past And Present

PART Ⅳ Internetworking

 Chapter 20 Internetworking: Concepts, Architecture, and Protocols

 Chapter 21 lP: Internet Addressing

 Chapter 22 Datagram Forwarding

 Chapter 23 Support Protocols And Technologies

 Chapter 24 The Future lP (IPv6)

 Chapter 25 UDP: Datagram Transport Service

 Chapter 26 TCP: Reliable Transport Service

 Chapter 27 Internet Routing And Routing Protocols

PART Ⅴ Other Networking Concept&Technologies

 Chapter 28 Network Performance (QoS and DiffSery)

 Chapter 29 Multimedia And lp Telephony (VOIP)

 Chapter 30 Network Security

 Chapter 31 Network Management (SNMP)

 Chapter 32 Trends in Networking Technologies And Uses

Appendix 1 A Simplified Application Programming interface

Index