计算机网络

1 INTRODUCTION 1.1 USES OF COMPUTER NETWORKS 1.1.1 Business Applications 1.1.2 Home Applications 1.1.3 Mobile Users 1.1.4 Social Issues 1.2 NETWORK HARDWARE 1.2.1 Local Area Networks 1.2.2 Metropolitan Area Networks 1.2.3 Wide Area Networks 1.2.4 Wireless Networks 1.2.5 Home Networks 1.2.6 Internetworks 1.3 NETWORK SOFTWARE 1.3.1 Protocol Hierarchies

1 INTRODUCTION 1.1 USES OF COMPUTER NETWORKS 1.1.1 Business Applications 1.1.2 Home Applications 1.1.3 Mobile Users 1.1.4 Social Issues 1.2 NETWORK HARDWARE 1.2.1 Local Area Networks 1.2.2 Metropolitan Area Networks 1.2.3 Wide Area Networks 1.2.4 Wireless Networks 1.2.5 Home Networks 1.2.6 Internetworks 1.3 NETWORK SOFTWARE 1.3.1 Protocol Hierarchies 1.3.2 Design Issues for the Layers 1.3.3 Connection-Oriented and Connectionless Services 1.3.4 Service Primitives 1.3.5 The Relationship of Services to Protocols 1.4 REFERENCE MODELS 1.4.1 The OSI Reference Model 1.4.2 The TCP/IP Reference Model 1.4.3 A Comparison of the OSI and TCP/IP Reference Models 1.4.4 A Critique of the OSI Model and Protocols 1.4.5 A Critique of the TCP/IP Reference Model 1.5 EXAMPLE NETWORKS 1.5.1 The Internet 1.5.2 Connection-Oriented Networks:X.25,Frame Relay,and ATM 1.5.3 Ethernet 1.5.4 Wireless LANs:802.11 1.6 NETWORK STANDARDIZATION 1.6.1 Who's Who in the Telecommunications World 1.6.2 Who's Who in the International Standards World 1.6.3 Who's Who in the Internet Standards World 1.7 METRIC UNITS 1.8 OUTLINE OF THE REST OF THE BOOK 1.9 SUMMARY2 THE PHYSICAL LAYER 2.1 THE THEORETICAL BASIS FOR DATA COMMUNICATION 2.1.1 Fourier Analysis 2.1.2 Bandwidth-Limited Signals 2.1.3 The Maximum Data Rate of a Channel 2.2 GUIDED TRANSMISSION MEDIA 2.2.1 Magnetic Media 2.2.2 Twisted Pair 2.2.3 Coaxial Cable 2.2.4 Fiber Optics 2.3 WIRELESS TRANSMISSION 2.3.1 The Electromagnetic Spectrum 2.3.2 Radio Transmission 2.3.3 Microwave Transmission 2.3.4 Infrared and Millimeter Waves 2.3.5 Lightwave Transmission 2.4 COMMUNICATION SATELLITES 2.4.1 Geostationary Satellites 2.4.2 Medium-Earth Orbit Satellites 2.4.3 Low-Earth Orbit Satellites 2.4.4 Satellites versus Fiber 2.5 THE PUBLIC SWITCHED TELEPHONE NETWORK 2.5.1 Structure of the Telephone System 2.5.2 The Politics of Telephones 2.5.3 The Local Loop:Modems,ADSL,and Wireless 2.5.4 Trunks and Multiplexing 2.5.5 Switching 2.6 THE MOBILE TELEPHONE SYSTEM 2.6.1 First-Generation Mobile Phones:Analog Voice 2.6.2 Second-Generation Mobile Phones:Digital Voice 2.6.3 Third-Generation Mobile Phones:Digital Voice and Data 2.7 CABLE TELEVISION 2.7.1 Community Antenna Television 2.7.2 Internet over Cable 2.7.3 Spectrum Allocation 2.7.4 Cable Modems 2.7.5 ADSL versus Cable 2.8 SUMMARY3 THE DATA LINK LAYER4 THE MEDIUM ACCESS CONTROL SUBLAYER5 THE NETWORK LAYER6 THE TRANSPORT LAYER7 THE APPLICATION LAYER8 NETWORK SECURITY9 READING LIST AND BIBLIOGRAPHYINDEX

本书是国内外使用最为广泛的计算机网络经典教材。全书按照网络协议模型（物理层、数据链路层、介质访问控制子层、网络层、传输层和应用层），自下而上系统地介绍了计算机网络的基本原理，并给出了大量实例。在讲述各网络层的同时，还融合进了近年来迅速发展起来的各种网络技术，如Internet、SONET、ADSL、CDMA、WLAN和蓝牙等。另外，针对当前计算机网络的发展现状以及计算机安全的重要性，本书用了一整间的篇幅对计算机安全进行了深入讨论。 本书的适用对象很广泛。对于学习计算机网络课程的本科生以及研究生，本书都可以作为教材或教学参考书，每一章后面的大量练习题，可用于课程作业或者复习要点。对于从事网络研究、网络工程以及使用和管理网络的科研和工程技术人员，本书也是一本很有价值的参考读物。