计算机网络——自顶向下方法与Internet特色（第3版 影印版） (2009 年度畅销榜NO.2930 )

本套教学用书的特点：
·权威性——教育部高等教育司推荐，教育部高等学校信息科学与技术引进教材专家组遴选
·系统性——覆盖计算机专业主干课程和非计算机专业计算机基础课程
·先进性——著名计算机专家近两年的最新著作，内容体系先进
·经济性——价格与国内自编教材相当，是国内引进教材价格最低的
本版保留了原先版本的重要特点：其自顶向下方法；对因特网进行重点讲解；对原理和实践并重；对于学习计算机网络的亲和风格和方法。主要变化在于：增加了新的一章“无线与移动网络”，包括对802.11的深入探讨、蜂窝式因特网接入概述以及对因特网和蜂窝网移动性的全面介绍。本书介绍计算机网络基础知识，并涵盖了“无线与移动网络”、“多媒体网络”、“网络安全”、“网络管理”四个高级专题。另外，还增加了易于操作的以太网实验，包括直观用户界面、分析近400个协议的功能，并增加两个新的Socket程序设计作业。本版内容经更新、扩充后，反映了近年计算机网络领域的快速变化：P2P网络，BGP，MPLS，网络安全，广播路由，因特网寻址与转发。
本书适用于高等院校计算机科学、电气工程及相关专业本科高年级或研究生的计算机网络课程，对通信等领域的相关技术人员也有很好的参考价值。

Chapter 1 Computer Networks and the Internet
1.1 What Is the Internet?
1.1.1 A Nuts-and-Bolts Description
1.1.2 A Service Description
1.1.3 What Is a Protocol?
1.2 The Network Edge
1.2.1 End Systems, Clients, and Servers
1.2.2 Connectionless and Connection-Oriented Service
1.3 The Network Core
1.3.1 Circuit Switching and Packet Switching
1.3.2 Packet-Switched Networks: Datagram Networks and
Virtual-Circuit Networks
1.4 Access Networks and Physical Media
1.4.1 Access Networks
1.4.2 Physical Media
1.5 ISPs and Internet Backbones
1.6 Delay and Loss in Packet-Switched Networks
1.6.1 Types of Delay
1.6.2 Queuing Delay and Packet Loss
1.6.3 Delay and Routes in the Internet
1.7 Protocol Layers and Their Service Models
1.7.1 Layered Architecture
1.7.2 Layers, Messages, Segments, Datagrams, and Frames
1.8 History of Computer Networking and the Internet
1.8.1 The Development of Packet Switching: 1961-1972
1.8.2 Proprietary Networks and Internetworking: 1972-1980
1.8.3 A Proliferation of Networks: 1980-1990
1.8.4 The Internet Explosion: The 1990s
1.8.5 Recent Developments
1.9 Summary
Road-Mapping This Book
Homework Problems and Questions
Problems
Discussion Questions
Ethereal Lab 1
Interview: Leonard Kleinrock
Chapter 2 Application Layer
2.1 Principles of Network Applications
2.1.1 Network Application Architectures
2.1.2 Processes Communicating
2.1.3 Application-Layer Protocols
2.1.4 What Services Does an Application Need?
2.1.5 Services Provided by the Internet Transport Protocols
2.1.6 Network Applications Covered in This Book
2.2 The Web and HTtP
2.2.1 Overview of HTtP
2.2.2 Nonpersistent and Persistent Connections
2.2.3 HTTP Message Format
2.2.4 User-Server Interaction: Cookies
2.2.5 HTFP Content
2.2.6 Web Caching
2.2.7 The Conditional GET
2.3 File Transfer: FTP
2.3.1 FTP Commands and Replies
2.4 Electronic Mail in the Internet
2.4.1 SMTP
2.4.2 Comparison with HTrP
2.4.3 Mail Message Formats and MIME
2.4.4 Mall Access Protocols
2.5 DNS--The Internet's Directory Service
2.5.1 Services Provided by DNS
2.5.2 Overview of How DNS Works
2.5.3 DNS Records and Messages
2.6 P2P File Sharing
2.7 Socket Programming with TCP
2.7.1 Socket Programming with TCP
2.7.2 An Example Client/Server Application in Java
2.8 Socket Programming with UDP
2.9 Building a Simple Web Server
2.9.1 Web Server Functions
2.10 Summary
Homework Problems and Questions
Problems
Discussion Questions
Socket Programming Assignments
Ethereal Labs
Interview: Tim Berners-Lee
Chapter 3 Transport Layer
3.1 Introduction and Transport-Layer Services
3.1.1 Relationship Between Transport and Network Layers
3.1.2 Overview of the Transport Layer in the Internet
3.2 Multiplexing and Demultiplexing
3.3 Connectionless Transport: UDP
3.3.1 UDP Segment Structure
3.3.2 UDPChecksum
3.4 Principles of Reliable Data Transfer
3.4.1 Building a Reliable Data Transfer Protocol
3.4.2 Pipelined Reliable Data Transfer Protocols
3.4.3 Go-Back-N (GBN)
3.4.4 Selective Repeat (SR),
3.5 Connection-Oriented Transport: TCP
3.5.1 The TCP Connection
3.5.2 TCP Segment Structure
3.5.3 Round-Trip Time Estimation and Timeout,
3.5.4 Reliable Data Transfer
3.5.5 Flow Control
3.5.6 TCP Connection Management
3.6 Principles of Congestion Control
3.6.1 The Causes and the Costs of Congestion
3.6.2 Approaches to Congestion Control
3.6.3 Network-Assisted Congestion-Control Example:
ATM ABR Congestion Control
3.7 TCP Congestion Control
3.7.1 Fairness
3.7.2 TCP Delay Modeling
3.8 Summary
Homework Problems and Questions
Problems
Discussion Questions
Programming Assignments
Ethereal Lab: Exploring TCP
Interview: Sally Floyd
Chapter 4 The Network Layer
4.1 Introduction
4.1.1 Forwarding and Routing
4.1.2 Network Service Models
4.2 Virtual Circuit and Datagram Networks
4.2.1 Virtual-Circuit Networks
4.2.2 Datagram Networks
4.2.3 Origins of VC and Datagram Networks
4.3 What's Inside a Router?
4.3.1 Input Ports
4.3.2 Switching Fabric
4.3.3 Output Ports
4.3.4 Where Does Queuing Occur?
4.4 The Intemet Protocol (IP): Forwarding and Addressing in the Intemet
4.4.1 Datagram Format
4.4.2 IPv4 Addressing
4.4.3 Intemet Control Message Protocol (ICMP)
4.4.4 IPv6
4.5 Routing Algorithms
4.5.1 The Link-State (LS) Routing Algorithm
4.5.2 The Distance-Vector (DV) Routing Algorithm
4.5.3 Hierarchical Routing
4.6 Routing in the Intemet
4.6.1 Intra-AS Routing in the Internet: RIP
4.6.2 Intra-AS Routing in the Intemet: OSPF
4.6.3 Inter-Autonomous System Routing: BGP
4.7 Broadcast and Multicast Routing
4.7.1 Broadcast Routing Algorithms
4.7.2 Multicast
4.8 Summary
Homework Problems and Questions
Problems
Discussion Questions
Programming Assignment
Ethereal Lab
Interview: Vinton G. Cerf
Chapter 5 The Link Layer and Local Area Networks
5.1 Link Layer: Introduction and Services
5.1.1 The Services Provided by the Link Layer
5.1.2 Adapters Communicating
5.2 Error-Detection and -Correction Techniques
5.2.1 Parity Checks
5.2.2 Checksumming Methods
5.2.3 Cyclic Redundancy Check (CRC)
5.3 Multiple Access Protocols
5.3.1 Channel Partitioning Protocols
5.3.2 Random Access Protocols
5.3.3 Taking-Turns Protocols
5.3.4 Local Area Networks (LANs)
5.4 Link-Layer Addressing
5.4.1 MAC Addresses
5.4.2 Address Resolution Protocol (ARP)
5.4.3 Dynamic Host Configuration Protocol
5.5 Ethernet
5.5.1 Ethernet Frame Structure
5.5.2 CSMA/CD: Ethernet's Multiple Access Protocol
5.5.3 Ethernet Technologies
5.6 Interconnections: Hubs and Switches
5.6.1 Hubs
5.6.2 Link-Layer Switches
5.7 PPP: The Point-to-Point Protocol
5.7.1 PPP Data Framing
5.7.2 PPP Link-Control Protocol (LCP) and Network-Control Protocols
5.8 Link Virtualization: A Network as a Link Layer
5.8.1 Asynchronous Transfer Mode (ATM) Networks
5.8.2 Multiprotocol Label Switching (MPLS)
5.9 Summary
Homework Problems and Questions
Problems
Discussion Questions
Ethereal Lab
Interview: Simon S. Lam
Chapter 6 Wireless and Mobile Networks
6.1 Introduction
6.2 Wireless Links and Network Characteristics
6.2.1 CDMA
6.3 Wi-Fi: 802.11 Wireless LANs
6.3.1 The 802.11 Architecture
6.3.2 The 802.11 MAC Protocol
6.3.3 The IEEE 802.11 Frame
6.3.4 Mobility in the Same IP Subnet
6.3.5 802.15 and Bluetooth
6.4 Cellular Intemet Access
6.4.1 An Overview of Cellular Architecture
6.4.2 Cellular Standards and Technologies: A Brief Survey
6.5 Mobility Management: Principles
6.5.1 Addressing
6.5.2 Routing to a Mobile Node
6.6 Mobile IP
6.7 Managing Mobility in Cellular Networks
6.7.1 Routing Calls to a Mobile User
6.7.2 Handoffs in GSM
6.8 Wireless and Mobility: Impact on Higher-layer Protocols
6.9 Summary
Homework Problems and Questions
Problems
Discussion Questions
Ethereal Lab
Interview: Charlie Perkins
Chapter 7 Multimedia Networking
7.1 Multimedia Networking Applications
7.1.1 Examples of Multimedia Applications
7.1.2 Hurdles for Multimedia in Today's Intemet
7.1.3 How Should the Intemet Evolve to Support Multimedia Better?
7.1.4 Audio and Video Compression
7.2 Streaming Stored Audio and Video
7.2.1 Accessing Audio and Video Through a Web Server
7.2.2 Sending Multimedia from a Streaming Server to a Helper Application
7.2.3 Real-Time Streaming Protocol (RTSP)
7.3 Making the Best of the Best-Effort Service: An Intemet Phone Example
7.3.1 The Limitations of a Best-Effort Service
7.3.2 Removing Jitter at the Receiver for Audio
7.3.3 Recovering from Packet Loss
7.3.4 Streaming Stored Audio and Video
7.4 Protocols for Real-Time Interactive Applications
7.4.1 RTP
7.4.2 RTP Control Protocol (RTCP)
7.4.3 SIP
7.4.4 H.323
7.5 Distributing Multimedia: Content Distribution Networks
7.6 Beyond Best Effort
7.6.1 Scenario 1: A 1 Mbps Audio Application and an FTP Transfer
7.6.2 Scenario 2: A 1 Mbps Audio Application and a High-Priority
FTP Transfer
7.6.3 Scenario 3: A Misbehaving Audio Application and an FTP Transfer
7.6.4 Scenario 4: Two 1 Mbps Audio Applications over an
Overloaded 1.5 Mbps Link
7.7 Scheduling and Policing Mechanisms
7.7.1 Scheduling Mechanisms
7.7.2 Policing: The Leaky Bucket
7.8 Integrated Services and Differentiated Services
7.8.1 Intserv
7.8.2 Diffserv
7.9 RSVP
7.9.1 The Essence of RSVP
7.9.2 A Few Simple Examples
7.10 Summary
Homework Problems and Questions
Problems
Discussion Questions
Programming Assignment
Interview: Henning Schulzrinne
Chapter 8 Security in Computer Networks
8.1 What Is Network Security?
8.2 Principles of Cryptography
8.2.1 Symmetric Key Cryptography
8.2.2 Public Key Encryption
8.3 Authentication
8.3.1 Authentication Protocol ap1.0
8.3.2 Authentication Protocol ap2.0
8.3.3 Authentication Protocol ap3.0
8.3.4 Authentication Protocol ap3.1
8.3.5 Authentication Protocol ap4.0
8.3.6 Authentication Protocol ap5.0
8.4 Integrity
8.4.1 Generating Digital Signatures
8.4.2 Message Digests
8.4.3 Hash Function Algorithms
8.5 Key Distribution and Certification
8.5.1 The Key Distribution Center
8.5.2 Public Key Certification
8.6 Access Control: Firewalls
8.6.1 Packet Filtering
8.6.2 Application Gateway
8.7 Attacks and Countermeasures
8.7.1 Mapping
8.7.2 Packet Sniffing
8.7.3 Spoofing
8.7.4 Denial-of-Service and Distributed Denial-of-Service Attacks
8.7.5 Hijacking
8.8 Security in Many Layers: Case Studies
8.8.1 Secure E-mail
8.8.2 Secure Sockets Layer (SSL) and Transport Layer Security (TLS)
8.8.3 Network-Layer Security: IPsec
8.8.4 Security in IEEE 802.11
8.9 Summary
Homework Problems and Questions
Problems
Discussion Questions
Interview: Steven M. Bellovin
Chapter 9 Network Management
9.1 What Is Network Management?
9.2 The Infrastructure for Network Management
9.3 The Internet-Standard Management Framework
9.3.1 Structure of Management Information: SMI
9.3.2 Management Information Base: MIB
9.3.3 SNMP Protocol Operations and Transport Mappings
9.3.4 Security and Administration
9.4 ASN. 1
9.5 Conclusion
Homework Problems and Questions
Problems
Discussion Questions
Interview: Jeff Case
References
Index
8.5 Key Distribution and Certification
8.5.1 The Key Distribution Center
8.5.2 Public Key Certification
8.6 Access Control: Firewalls
8.6.1 Packet Filtering
8.6.2 Application Gateway
8.7 Attacks and Countermeasures
8.7.1 Mapping
8.7.2 Packet Sniffing
8.7.3 Spoofing
8.7.4 Denial-of-Service and Distributed Denial-of-Service Attacks
8.7.5 Hijacking
8.8 Security in Many Layers: Case Studies
8.8.1 Secure E-mail
8.8.2 Secure Sockets Layer (SSL) and Transport Layer Security (TLS)
8.8.3 Network-Layer Security: IPsec
8.8.4 Security in IEEE 802.11
8.9 Summary
Homework Problems and Questions
Problems
Discussion Questions
Interview: Steven M. Bellovin
Chapter 9 Network Management
9.1 What Is Network Management?
9.2 The Infrastructure for Network Management
9.3 The Intemet-Standard Management Framework
9.3.1 Structure of Management Information: SMI
9.3.2 Management Information Base: MIB
9.3.3 SNMP Protocol Operations and Transport Mappings
9.3.4 Security and Administration
9.4 ASN. 1
9.5 Conclusion
Homework Problems and Questions
Problems
Discussion Questions
Interview: Jeff Case
References
Index

Jim Kurose Jim Kurose is a professor of Computer Science at the University of Massachusetts, Amherst. Dr. Kurose has received a number of recognitions for his educational activities including Outstanding Teacher Awards from the National Technological University (eight times), the University of Massachusetts, and the Northeast Association of Graduate Schools. He received the IEEE Taylor Booth Education Medal and was recognized for his leadership of Massachusetts' Commonwealth Informatio

20世纪末, 以计算机和通信技术为代表的信息科学和技术对世界经济. 科技. 军事. 教育和文化等产生了深刻影响. 信息科学技术的迅速普及和应用, 带动了世界范围信息产业的蓬勃发展, 为许多国家带来了丰厚的回报. 进入21世纪, 尤其随着我国加入WTO, 信息产业的国际竞争将更加激烈. 我国信息产业虽然在20世纪末取得了迅猛发展, 但与发达国家相比, 甚至与印度. 爱尔兰等国家相比, 还有很大差距. 国家信息化的发展速度和信息产业的国际竞争能力, 最终都将取决于信息科学技术人才的质量和数量. 引进国外信息科学和技术优秀教材, 在有条件的学校推动开展英语授课或双语教学, 是教育部为加快培养大批高质量的信息技术人才采取的一项重要举措. 为此, 教育部要求由高等教育出版社首先开展信息科学和技术教材的引进试点工作. 同时提出了两点要求, 一是要高水平, 二是要低价格. 在高等教育出版社和信息科学技术引进教材专家组的努力下, 经过比较短的时间, 第一批引进的20多种教材已经陆续出版. 这套教材出版后受到了广泛的好评, 其中有不少是世界信息科学技术领域著名专家. 教授的经典之作和反映信息科学技术最新进展的优秀作品, 代表了目前世界信息科学技术教育的一流水平, 而且价格也是最优惠的, 与国内同类自编教材相当. 这项教材引进工作是在教育部高等教育司和高教社的共同组织下, 由国内信息科学技术领域的专家. 教授广泛参与, 在对大量国外教材进行多次遴选的基础上, 参考了国内和国外著名大学相关专业的课程设置进行系统引进的. 其中, John Wiley公司出版的贝尔实验室信息科学研究中心副总裁Silberschatz教授的经典著作《操作系统概念》, 是我们经过反复谈判, 做了很多努力才得以引进的. William Stallings先生曾编写了在美国深受欢迎的信息科学技术系列教材, 其中有多种教材获得过美国教材和学术著作者协会颁发的计算机科学与工程教材奖, 这批引进教材中就有他的两本著作. 留美中国学者Jiawei Han先生的《数据挖掘》是该领域中具有里程碑意义的著作. 由达特茅斯学院Thomas Cormen和麻省理工学院. 哥伦比亚大学的几位学者共同编著的经典著作《算法导论》, 在经历了11年的锤炼之后于2001年出版了第二版. 目前任教于美国Massachusetts大学的James Kurose教授, 曾在美国三所高校先后10次获得杰出教师或杰出教学奖, 由他主编的《计算机网络》出版后, 以其体系新颖. 内容先进而倍受欢迎. 在努力降低引进教材售价方面, 高等教育出版社做了大量和细致的工作. 这套引进的教材体现了权威性. 系统性. 先进性和经济性等特点. 教育部也希望国内和国外的出版商积极参与此项工作, 共同促进中国信息技术教育和信息产业的发展. 我们在与外商的谈判工作中, 不仅要坚定不移地引进国外最优秀的教材, 而且还要千方百计地将版权转让费降下来, 要让引进教材的价格与国内自编教材相当, 让广大教师和学生负担得起. 中国的教育市场巨大, 外国出版公司和国内出版社要通过扩大发行数量取得效益. 在引进教材的同时, 我们还应做好消化吸收, 注意学习国外先进的教学思想和教学方法, 提高自编教材的水平, 使我们的教学和教材在内容体系上, 在理论与实践的结合上, 在培养学生的动手能力上能有较大的突破和创新. 目前, 教育部正在全国35所高校推动示范性软件学院的建设和实施, 这也是加快培养信息科学技术人才的重要举措之一. 示范性软件学院要立足于培养具有国际竞争力的实用性软件人才, 与国外知名高校或著名企业合作办学, 以国内外著名IT企业为实践教学基地, 聘请国内外知名教授和软件专家授课, 还要率先使用引进教材开展教学. 我们希望通过这些举措, 能在较短的时间, 为我国培养一大批高质量的信息技术人才, 提高我国软件人才的国际竞争力, 促进我国信息产业的快速发展, 加快推动国家信息化进程, 进而带动整个国民经济的跨越式发展. 教育部高等教育司 二OO二年三月