数据与计算机通信（影印版）

CONTENTS

Web Site for Data and Computer Communications, viPreface, ix

PART ONE OVERVIEW, 1

Chapter 1 Introduction, 3

　　1.1 A Communications Model, 5

　　1.2 Data Communications, 7

　　1.3 Data Communication Networking, 9

　　1.4 Protocols and Protocol Architecture, 12

　　1.5 Standards, 22

　　Appendix 1A: Standards Organizations, 23

　　Appendix 1B: Internet and Web Resources, 29

Chapter 2 Protocols and Architecture, 31

　　2.1 Protocols, 32

　　2.2 OSI, 44

　　2.3 TCP/IP, 54

　　2.4 Recommended Reading, 60

　　2.5 Problems, 60

PART TWO DATA COMMUNICATIONS,63

Chapter 3 Data Transmission, 67

　　3.1 Concepts and Terminology, 69

　　3.2 Analog and Digital Data Transmission, 79

　　3.3 Transmission Impairments, 89

　　3.4 Recommended Reading, 98

　　3.5 Problems, 98

　　Appendix 3A: Fourier Analysis, 100

　　Appendix 3B: Decibels and Signal Strength, 105

Chapter 4 Transmission Media, 107

　　4.1 Guided Transmission Media, 110

　　4.2 Wireless Transmission, 119

　　4.3 Recommended Reading and Web Sites, 127

　　4.4 Problems, 127

Chapter 5 Data Encoding, 129

　　5.1 Digital Data, Digital Signals, 132

　　5.2 Digital Data, Analog Signals, 142

　　5.3 Analog Data, Digital Signals, 148

　　5.4 Analog Data, Analog Signals, 155

　　5.5 Spread Spectrum, 162

　　5.6 Recommended Reading, 167

　　5.7 Problems, 167

　　Appendix 5A: Proof of the Sampling Theorem, 170

Chapter 6 The Data Communication interface, 173

　　6.1 Asynchronous and Synchronous Transmission, 174

　　6.2 Line Configurations, 178

　　6.3 Interfacing, 180

　　6.4 Recommended Reading, 190

　　6.5 Problems, 190

Chapter 7 Data Link Control, 193

　　7.1 Flow Control, 195

　　7.2 Error Detection, 201

　　7.3 Error Control, 208

　　7.4 High-Level Data Link Control (HDLC), 213

　　7.5 Other Data Link Control Protocols, 221

　　7.6 Recommended Reading, 224

　　7.7 Problems, 224

Chapter 8 Multiplexing, 235

　　8.1 Frequency-Division Multiplexing, 237

　　8.2 Synchronous Time-Division Multiplexing, 244

　　8.3 Statistical Time-Division Multiplexing, 257

　　8.4 Asymmetric Digital Subscriber Line, 264

　　8.5 xDSL, 2688.6 Recommended Reading and Web Sites, 2698.7 Problems, 270

PART THREE WIDE AREA NETWORKS,273

Chapter 9 Circuit Switching, 275

　　9.1 Switching Networks, 276

　　9.2 Circuit Switching Networks, 278

　　9.3 Circuit Switching Concepts, 281

　　9.4 Routing in Circuit-Switching Networks, 287

　　9.5 Control Signaling, 289

　　9.6 Recommended Reading, 301

　　9.7 Problems, 301

Chapter 10 Packet Switching, 303

　　10.1 Packet Switching Principles, 305

　　10.2 Routing, 315

　　10.3 X.25, 329

　　10.4 Recommended Reading, 338

　　10.5 Problems, 338

　　Appendix 10A: Least-Cost Algorithms, 342

Chapter 11 ATM and Frame Relay, 347

　　11.1 Protocol Architecture, 348

　　11.2 ATM Logical Connections, 350

　　11.3 ATM Cells, 354

　　11.4 Transmission of ATM Cells, 360

　　11.5 ATM Service Categories, 364

　　11.6 ATM Adaptation Layer, 366

　　11.7 Frame Relay, 376

　　11.8 Recommended Reading and Web Sites, 380

　　11.9 Problems, 381

Chapter 12 Congestion Control in Data Network, 383

　　12.1 Effects of Congestion, 385

　　12.2 Congestion Control, 390

　　12.3 Traffic Management, 393

　　12.4 Congestion Control in Packet-Switching Networks, 394

　　12.5 ATM Traffic Management, 395

　　12.6 ATM-ABR Traffic Management, 407

　　12.7 Frame Relay Congestion Control, 411

　　12.8 Recommended Reading, 417

　　12.9 Problems, 418

PART FOUR LOCAL AREA NETWORKS, 421

Chapter 13 LAN Technology, 423

　　13.1 Lan Applications, 425

　　13.2 LAN Architecture, 428

　　13.3 Bus LANs, 440

　　13.4 Ring LANs, 443

　　13.5 Star LANs, 447

　　13.6 Wireless LANs, 450

　　13.7 Bridges, 457

　　13.8 Recommended Reading and Web Sites, 464

　　13.9 Problems, 465

　　Appendix 13A f The IEEE 802 Standards, 466

Chapter 14 LAN Systems, 469

　　14.1 Ethernet (CSMA/CD), 470

　　14.2 Token Ring and FDDI, 482

　　14.3 ATM LANs, 495

　　14.4 Fibre Channel, 499

　　14.5 Wireless LANs, 502

　　14.6 Recommended Reading and Web Sites, 507

　　14.7 Problems, 508

　　Appendix 14A: Digital Signal Encoding for LANs, 510

　　Appendix 14B f Performance Issues, 515

Chapter 15 Internet Protocols, 527

　　15.1 Principles of internetworking, 530

　　15.2 Connectionless internetworking, 533

　　15.3 Internet Protocol, 540

　　15.4 IPv6, 549

　　15.5 IP Multicasting, 560

　　15.6 Recommended Reading and Web Sites, 566

　　15.7 Problems, 567

Chapter 16 Internet work Operation, 569

　　16.1 Routing Protocols, 571

　　16.2 Integrated Services Architecture, 582

　　16.3 Resource Reservation: RSVP, 591

　　16.4 Differentiated Services, 598

　　16.5 Recommended Reading and Web Sites, 604

　　16.6 Problems, 605

Chapter 17 Transport Protocols, 607

　　17.1 Connection-Oriented Transport Protocol Mechanisms, 608

　　17.2 TCP, 627

　　17.3 TCP Congestion Control, 635

　　17.4 UDP, 644

　　17.5 Recommended Reading, 646

　　17.6 Problems, 646

Chapter 18 Network Security, 649

　　18.1 Security Requirements and Attacks, 651

　　18.2 Confidentiality with Convention Encryption, 652

　　18.3 Message Authentication and Hash Functions, 662

　　18.4 Public-Key Encryption and Digital Signatures, 670

　　18.5 IPv4 and IPv6 Security, 677

　　18.6 Recommended Reading and Web Sites, 684

　　18.7 Problems, 684

Chapter 19 Distributed Applications, 687

　　19.1 Abstract Syntax Notation One (ASN.1), 688

　　19.2 Network Management: SNMP, 702

　　19.3 Electronic Mail: SMTP and MIME, 711

　　19.4 Hypertext Transfer Protocol (HTTP), 726

　　19.5 Recommended Reading and Web Sites, 739

　　19.6 Problems, 740

Appendix A ISDN and Broadband ISDN, 743

　　A.1 Overview of ISDN, 745

　　A.2 ISDN Channels, 751

　　A.3 User Access, 754

　　A.4 ISDN Protocols, 756

　　A.5 Broadband ISDN, 768

　　A.6 Recommended Reading, 772

　　A.7 Problems, 772

Appendix B RFCs Cited in This Book, 775

Appendix C Projects for Teaching Data and Computer Communications, 777

　　C.1 Simulation Projects, 778

　　C.2 Performance Modeling, 778

　　C.3 Research Projects, 779

　　C.4 Reading/Report Assignments, 779

Glossary, 781

References, 793

Index, 801