Technical, Commercial and Regulatory Challenges of QoS (eBook)

An Internet Service Model Perspective

XiPeng Xiao (Autor)

eBook Download: PDF | EPUB

2008 | 1. Auflage
296 Seiten
Elsevier Science (Verlag)
978-0-08-092031-3 (ISBN)

Infos

This book provides a comprehensive examination of Internet QoS theory, standards, vendor implementation and network deployment from the practitioner's point of view, including extensive discussion of related economic and regulatory issues. Written in a technology-light way so that a variety of professionals and researchers in the information and networking industries can easily grasp the material. Includes case studies based on real-world experiences from industry.
The author starts by discussing the economic, regulatory and technical challenges of the existing QoS model. Key coverage includes defining a clear business model for selling and buying QoS in relation to current and future direction of government regulation and QoS interoperability (or lack thereof) between carriers and networking devices. The author then demonstrates how to improve the current QoS model to create a clear selling point, less regulation uncertainty, and higher chance of deployment success. This includes discussion of QoS re-packaging to end-users; economic and regulatory benefits of the re-packaging; and the overall benefits of an improved technical approach. Finally, the author discusses the future evolution of QoS from an Internet philosophy perspective and lets the reader draw the conclusions.
This book is the first QoS book to provide in depth coverage on the commercial and regulatory aspects of QoS, in addition to the technical aspect. From that, readers can grasp the commercial and regulatory issues of QoS and their implications on the overall QoS business model. This book is also the first QoS book to provide case studies of real world QoS deployments, contributed by the people who did the actual deployments. From that, readers can grasp the practical issues of QoS in real world. This book is also the first QoS book to cover both wireline QoS and wireless QoS. Readers can grasp the QoS issues in the wireless world. The book was reviewed and endorsed by a long list of prominent industrial and academic figures.
* The only book to discuss QoS technology in relation to economic and regulatory issues
* Includes case studies based on real-world examples from industry practitioners.
* Provides unique insight into how to improve the current QoS model to create a clear selling point, less regulatory uncertainty, and higher chance of deployment success.

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Technical, Commerical and Regulatory Challenges of QoS provides a comprehensive examination of Internet QoS theory, standards, vendor implementation and network deployment from the practitioner's point of view, including extensive discussion of related economic and regulatory issues. Written in a technology-light way so that a variety of professionals and researchers in the information and networking industries can easily grasp the material. Includes case studies based on real-world experiences from industry. The author starts by discussing the economic, regulatory and technical challenges of the existing QoS model. Key coverage includes defining a clear business model for selling and buying QoS in relation to current and future direction of government regulation and QoS interoperability (or lack thereof) between carriers and networking devices. The author then demonstrates how to improve the current QoS model to create a clear selling point, less regulation uncertainty, and higher chance of deployment success. This includes discussion of QoS re-packaging to end-users; economic and regulatory benefits of the re-packaging; and the overall benefits of an improved technical approach. Finally, the author discusses the future evolution of QoS from an Internet philosophy perspective and lets the reader draw the conclusions. This book is the first QoS book to provide in depth coverage on the commercial and regulatory aspects of QoS, in addition to the technical aspect. From that, readers can grasp the commercial and regulatory issues of QoS and their implications on the overall QoS business model. This book is also the first QoS book to provide case studies of real world QoS deployments, contributed by the people who did the actual deployments. From that, readers can grasp the practical issues of QoS in real world. This book is also the first QoS book to cover both wireline QoS and wireless QoS. Readers can grasp the QoS issues in the wireless world. The book was reviewed and endorsed by a long list of prominent industrial and academic figures. Discusses QoS technology in relation to economic and regulatory issues Includes case studies based on real-world examples from industry practitioners Provides unique insight into how to improve the current QoS model to create a clear selling point, less regulatory uncertainty, and higher chance of deployment success

Inhalt

Front Cover 1
Technical, Commercial and Regulatory Challenges of QoS: An Internet Service Model Perspective 4
Copyright Page 5
Contents 6
List of Endorsements 12
Preface 14
Acknowledgements 20
About the Author 22
CHAPTER 1 Introduction 24
The Big Picture 24
High-Level Overview of How the Internet Works 28
PART 1 THE STATUS QUO 34
CHAPTER 2 What Is QoS? 36
QoS Is Good User Perception 36
What Factors Determine the End Users' QoS Perception? 37
Delay 38
Delay Variation 39
Packet Loss Ratio 40
The Bandwidth Factor 41
QoS Requirements of Voice, Video, and Data Applications 41
End-to-End Requirements of Voice 43
End-to-End Requirements of Interactive Video 43
End-to-End Requirements of Non-Interactive Video 44
End-to-End Requirements of Interactive and Non-Interactive Data 45
Performance of IP Networks 45
An Optimistic View 45
A Conservative View 47
A Realistic View 53
A Seeming Contradiction in Performance Perception 57
Summary 57
CHAPTER 3 Historic Evolution of QoS Solutions 60
PSTN Solution 61
Layer-2 QoS Solutions 62
ATM QoS 62
Frame Relay QoS 64
Ethernet QoS 64
IP QoS Solutions 66
Integrated Services 67
Differentiated Services 68
Hybrid IntservDiffserv 70
Over Provisioning 70
Transport-Layer and Application-Layer Solutions 71
ITU/ETSI QoS Approach, RACS 73
Final Observations 73
Summary 74
CHAPTER 4 Contemporary QoS Wisdom 76
Business Model 76
Soft Assurance vs. Hard Assurance 77
On-Demand QoS vs. Subscription-Based QoS 79
Technical Solution 79
A Common Technical Solution 80
Some Observations about the Technical Solution 86
Summary 87
CHAPTER 5 QoS Reality 88
Network Performance Reality 88
Commercial Reality 89
SLA Is in Place 89
SLA Is Loose 97
There Is No QoS Agreement among NSPs 97
There Are Few Commercial Successes 97
Summary 99
PART 2 THE CHALLENGES 100
CHAPTER 6 Commercial Challenges 102
The "Who Should Get" Challenge 102
The "How to Sell" Challenge 103
The "Double Selling" Difficulty 103
The "Evidence of Poor Quality" Difficulty 103
The "What Assurance to Provide" Difficulty 104
The "Who Should Pay" Challenge 105
Business Pay or Consumer Pay? 105
Calling Consumers Pay or Receiving Consumers Pay? 107
The "Lack of Interprovider Settlement" Challenge 108
Summary 110
CHAPTER 7 Regulatory Challenges 112
The Net Neutrality Debate 112
Arising of Net Neutrality 112
The Interest Conflict between the "Hosts" and the "Parasites" 114
The Net Neutrality Proponent's View 115
The Opponent's View 117
The General Public and the Network Industry's View 119
Clarifying Some Common Misconceptions about Net Neutrality 120
The Gist of Net Neutrality 123
Can Structural Separation Be an Alternative to Net Neutrality? 124
The Consequences of the Net Neutrality Debate 126
Government Regulation Uncertainty 126
The Impact of Net Neutrality on QoS 129
Regulatory Environment in Other Countries 130
Summary 134
CHAPTER 8 Technical Challenges 136
Integration Challenge 136
Traffic Management 136
Routing 137
Traffic Engineering and MPLS 138
CDN 140
Integration Challenge 140
Complexity Challenge 141
Complexity/Control Spiral 141
Complexity Comparison between Internet and PSTN 142
Impact of Complexity on Network Reliability and QoS 143
Interoperability Challenge 146
Inter-Provider Interoperability Challenge 146
Inter-Vendor Interoperability Challenge 147
Accounting Challenge 149
Differentiation Challenge 149
Differentiation Difficulty under Normal Network Condition 150
Differentiation Difficulty under Abnormal Network Conditions 155
Poor Performance Happens but CoS Won't Be the Solution 156
Summary 158
CHAPTER 9 The Lessons 160
QoS Is More Than CoS and Traffic Management 160
It Is Difficult to Differentiate Multiple CoS's 161
Lack of Differentiation Causes Commercial and Regulatory Challenges 161
Putting Things Together: Discussion on QoS on Demand and Bandwidth on Demand 162
QoS on Demand 163
Bandwidth on Demand 164
Summary 165
PART 3 THE NEXT STEP 168
CHAPTER 10 The New Business Model 170
The New Baseline 171
Price QoS into the Services Don't Sell QoS Explicitly
How the Proposed Model Deals with the Commercial, Regulatory, and Technical Challenges 172
Meeting the Commercial Challenges 172
Meeting the Regulatory Challenges 173
Meeting the Technical Challenges 173
The Possible Concerns 174
Are We Giving up QoS? 174
Without Explicit Selling of QoS, will Network Services Become Commodity? 176
Will this Model Turn NSPs into Dumb Pipers? 176
Are NSPs Forcing Their Customers to Subsidize the ICPs? 177
The Historic Pricing Trend of Communications Services 178
Postal Service Pricing Became Simpler over Time 180
Telephone Service Pricing Became Simpler over Time 182
The Correlation between Pricing Scheme and Usage Growth 183
Evolution of Postal Service Usage 183
Evolution of Telephone Service Usage 186
How Comparable Are Postal and Telephone Services to Internet Service? 188
Why the Proposed Model Is Good for the Industry 189
Fewer Commercial, Regulatory, and Technical Challenges 189
Better Stimulus for Usage Growth 190
Better Focus on Real Revenue Opportunities 190
The Early Evidence 190
The Possible Customizations 191
Summary 191
CHAPTER 11 The New Technical Approach 194
Network Planning 195
Derive Traffic Matrix, Analyze Traffic Trend 196
Plan Network Capacity 199
Plan Routing Policies 199
Plan for the Most Catastrophic Events 201
Security Consideration 202
Network Auditing 202
Check for Misconfigurations 203
Check for Sudden Changes 204
Check for Security Loopholes 205
Traffic Control 205
Traffic Engineering 206
Traffic Protection and Restoration 209
Traffic Management 212
Traffic Optimization 213
CDN 213
Route Control 214
Performance Measurement 214
Statistics Collection 214
Statistics Analysis 215
Control Schemes That Are Not Recommended 215
RACS 215
Diffserv-aware TE 216
Differences from the Traditional QoS Approach 217
Benefits of the Proposed Approach 217
Simplified Network Operations 218
Simplified Network Equipment 218
The Early Evidence 218
Summary 221
CHAPTER 12 Case Studies 224
Case Study 1: Delivering QoS at Internet2 225
Introduction to Internet2 225
Original QoS Deployment Plan of Internet2 226
Actual Deployment Experience 231
Lessons Learned 232
Conclusion 236
About the Contributors 237
Case Study 2: Delivering QoS at Internap 237
Introduction to Internap 237
Internet Performance Problems 238
Internap's Performance Solutions 239
Results 244
Conclusion 245
About the Contributor 246
Summary 246
CHAPTER 13 QoS in Wireless Networks 248
How QoS Differs in Wireless and Wireline Networks 249
Transmission Constraint 249
Spectrum Constraint 250
Energy Constraint 250
QoS in Wi-Fi Networks 250
Wi-Fi Operation 251
Wi-Fi QoS Model 253
Summary of Wi-Fi QoS 256
QoS in WiMAX Networks 259
WiMAX Operation 260
WiMAX QoS Model 261
Summary of WiMAX QoS 266
Wi-Fi QoS versus WiMAX QoS 266
Summary 267
About the Contributors 268
CHAPTER 14 Conclusion 270
APPENDIX A: List of Acronyms 274
APPENDIX B: Sample Peering Contract 278
APPENDIX C: U.S. Senate Bill S215, Internet Freedom Preservation Act 284
References 290
Index 298
A 298
B 298
C 298
D 300
E 300
F 301
G 301
H 301
I 302
K 303
L 303
M 303
N 304
O 305
P 305
Q 306
R 306
S 307
T 307
U 308
V 308
W 308
Y 309

Produkt-Details

• Erscheint lt. Verlag: 27.10.2008
• Sprache: englisch
• Themenwelt: Mathematik / Informatik ► Informatik ► Netzwerke
• Themenwelt: Technik ► Elektrotechnik / Energietechnik
• Themenwelt: Technik ► Nachrichtentechnik
• ISBN-10: 0-08-092031-4 / 0080920314
• ISBN-13: 978-0-08-092031-3 / 9780080920313