内容提要 《计算机网络：自顶向下方法（第4版）（）》是在版的基础上修订而成的。修订后的本书共分9章，主要内容包括：计算机网络和因特网，应用层，运输层，网络层，链路层和局域网，无线网络和移动网络，多媒体网络，计算机网络中的安全，网络管理。可供各大专院校作为教材使用，也可供从事相关工作的人员作为参考用书使用。 目录 Chapter 1 Computer Networks and the Internet1.1 What Is the Internet?1.1.1 A Nuts-and-Bolts Descriptio1.1.2 A Services Descriptio1.1.3 What Is a Protocol?1.2 The Network Edge1.2.1 Client and Server Programs1.2.2 Access Networks1.2.3 Physical Media1.3 The Network Core1.3.1 Circuit Switching and Packet Switching1.3.2 How Do Packets Make Their Way Through Packet-SwitchedNetworks?1.3.3 ISPs and Internet Backbones1.4 Delay, Loss, and Throughput in Packet-Switched Networks1.4.1 Overview of Delay in Packet-Switched Networks1.4.2 Queuing Delay and Packet Loss1.4.3 End-to-End Delay1.4.4 Throughput in Computer Networks1.5 Protocol Layers and Their Service Models1.5.1 Layered Architecture1.5.2 Messages, Segments, Datagrams, and Frames1.6 Networks Under Attack1.7 History of Computer Networking and the Internet1.7.1 The Development of Packet Switching: 1961-19721.7.2 Proprietary Networks and Internetworking: 1972-19801.7.3 A Proliferation of Networks: 1980-19901.7.4 The Intemet Explosion: The 1990s1.7.5 Recent Developments1.8 SummaryRoad-Mapping This BookHomework Problems and QuestionsProblemsDiscussion QuestionsEthereal LabInterview: Leonard KleinrockChapter 2 Application Layer2.1 Principles of Network Applications2.1.1 Network Application Architectures2.1.2 Processes Communicating2.1.3 Transport Services Available to Applications2.1.4 Transport Services Provided by the Internet2.1.5 Application-Layer Protocols2.1.6 Network Applications Covered in This Book2.2 The Web and HTTP2.2.1 Overview of HTTP2.2.2 Non-persistent and Persistent Connections2.2.3 HTTP Message Format2.2.4 User-Server Interaction: Cookies2.2.5 Web Caching2.2.6 The Conditional GET2.3 File Transfer: FTP2.3.1 FTP Commands and Replies2.4 Electronic Mail in the Internet2.4.1 SMTP2.4.2 Comparison with HTTP2.4.3 Mail Message Formats and MIME2.4.4 Mail Access Protocols2.5 DNS--The lnternet's Directory Service2.5.1 Services Provided by DNS2.5.2 Overview of How DNS Works2.5.3 DNS Records and Messages2.6 Peer-to-Peer Applications2.6.1 P2P File Distributio……Chapter 3 Transport LayerChapter 4 The Network LayerChapter 5 The Link Layer and Local Area NetworksChapter 6 Wireless and Mobile NetworksChapter 7 Multimedia NetworkingChapter 8 Security in Computer NetworksChapter 9 Network ManagementReferencesIndex 作者介绍
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