Contents vii -- Preface xv -- 1 Introduction 1 -- 1.1 QoS Framework 1 -- 1.2 Video-Conferencing System 5 -- 1.3 Overview of Audio-Video Compression Techniques 6 -- 1.4 End-System Considerations 9 -- 1.5 Operating-System Approach 10 -- 1.6 Overview of Networking and Media Technologies 11 -- 1.7 End-to-End QoS in the Internet 13 -- 1.8 Supporting QoS in Best-Effort Networks 14 -- 1.9 Application-Level Adaptation 16 -- 1.10 Real-Time Protocol 20 -- 1.11 Real-Time Control Protocol 22 -- 1.12 Summary 26 -- 2 QoS Fundamentals 31 -- 2.1 Traffic Description 31 -- 2.2 QoS Specification and Contract 34 -- 2.3 QoS Signaling 34 -- 2.4 Packet Classification 34 -- 2.5 Resource Reservation 35 -- 2.6 Admission Control 35 -- 2.7 Traffic Policing 36 -- 2.8 Traffic Shaping 42 -- 2.9 Queuing and Scheduling 43 -- 2.10 Congestion Control and Buffer Management 44 -- 2.11 Research Directions 44 -- 2.12 Summary 45 -- 2.13 Review Questions 45 -- 3 Scheduling for QoS Management 49 -- 3.1 Scheduling Goals 49 -- 3.2 Scheduling Techniques 52 -- 3.4 Implementation Status 69 -- 3.5 Research Directions in Scheduling 71 -- 3.6 Summary 73 -- 3.7 Review Questions 74 -- 3.8 Implementation Project 74 -- 4 TCP/IP and Queue Management 77 -- 4.1 Internet Protocol 77 -- 4.2 User Datagram Protocol 81 -- 4.3 TCP Basics 82 -- 4.4 TCP Segment Format 82 -- 4.5 TCP Three-Way Handshake 85 -- 4.6 TCP Acknowledgment 86 -- 4.7 Flow Control 86 -- 4.8 Congestion Control 88 -- 4.9 Queue Management 93 -- 4.10 Research Directions 100 -- 4.11 Review Questions 102 -- 5 Integrated Services Packet Network 107 -- 5.1 Intserv Aim 108 -- 5.2 Application Classification 108 -- 5.3 Intserv Service Classes 109 -- 5.4 Flow Definition 111 -- 5.5 Signaling/Flow Setup 111 -- 5.6 Routing Protocol Independence 112 -- 5.7 Reservation Specs 113 -- 5.8 IS-Capable Router Components 116 -- 5.9 LAN QoS and Inteserv 120.

5.10 Intserv Problems 125 -- 5.11 Research Directions 126 -- 5.12 Summary 128 -- 5.13 Review Questions 128 -- 6 Resource Reservation Protocol 133 -- 6.1 RSVP Features 133 -- 6.2 Reservation Merger 135 -- 6.3 Reservation Styles 137 -- 6.4 RSVP Messages 143 -- 6.5 RSVP Message Format 147 -- 6.7 RSVP Problems 157 -- 6.8 Other Resource Reservation Protocols 159 -- 6.9 RSVP extensions 160 -- 6.10 Summary 164 -- 6.11 Review Questions 164 -- 6.12 Implementation Project 165 -- 7 IP Differentiated Services Network 169 -- 7.1 Diffserv Architecture 169 -- 7.2 Diffserv Router 175 -- 7.3 Premium Service 178 -- 7.4 Experimental Evaluation of Premium Service Under Linux 179 -- 7.5 Assured Service 184 -- 7.6 Open Issues with Diffserv 187 -- 7.7 Diffserv Research Directions 187 -- 7.8 Summary 190 -- 7.9 Review Questions 190 -- 7.10 Implementation Project 191 -- 8 Policy-Based QoS Management 195 -- 8.1 Definition of Terminologies 195 -- 8.2 Bandwidth Broker 196 -- 8.3 Policy Framework 198 -- 8.4 Policy and RSVP 203 -- 8.5 Bandwidth Broker Implementation 203 -- 8.6 Internet2 and QBone 208 -- 8.7 Research Directions 209 -- 8.8 Summary 209 -- 8.9 Review Questions 210 -- 9 ATM QoS 213 -- 9.1 Why ATM Networks 213 -- 9.2 Protocol Architecture 214 -- 9.3 Connections 215 -- 9.4 Interfaces 217 -- 9.5 Cell Formats 218 -- 9.6 QoS Support 220 -- 9.7 Adaptation Layers 224 -- 9.8 IP-ATM Integration 227 -- 9.9 IP-ATM QoS Mapping 232 -- 9.10 Research Directions 236 -- 9.11 Summary 236 -- 9.12 Further Reading 237 -- 9.13 Review Questions 237 -- 10 Multiprotocol Label Switching 241 -- 10.1 Proprietary Protocols 241 -- 10.2 Motivation 242 -- 10.3 MPLS Basics 243 -- 10.4 Conventional IP Routing 244 -- 10.5 MPLS Approach 245 -- 10.6 Label Distribution 247 -- 10.7 Hierarchical Routing 252 -- 10.8 MPLS Over ATM 254 -- 10.9 Traffic Engineering Using MPLS 256.

10.10 MPLS and Latest Developments 262 -- 10.11 Summary 265 -- 10.12 Review Questions 265 -- 11 QoS in Mobile Wireless Networks 269 -- 11.1 Mobile Applications 269 -- 11.2 Mobile Wireless Networks 270 -- 11.3 Mobile Services over IP Networks 274 -- 11.4 Impact of Mobility on QoS 278 -- 11.5 Managing QoS in Mobile Environments 280 -- 11.6 Research Directions 283 -- 11.7 Summary 287 -- 11.8 Review Questions 287 -- 12 Future 293 -- 12.1 Intserv Over Diffserv 293 -- 12.2 QoS Routing 297 -- 12.3 Resource Discovery and QoS 297 -- 12.4 Virtual Private Network and QoS 298 -- 12.5 Content Distribution Network and QoS 299 -- 12.6 Web QoS 300 -- 12.7 Billing and Charging for QoS 301 -- 12.8 Final Words 302 -- 12.9 Summary 303 -- 12.10 Review Questions 303 -- About the Authors 307 -- Index 309.