Network quality of service : know it all

The term Quality of Service, abbreviated QoS, refers to network resource control mechanisms. Quality of Service is the ability to provide different priority to different applications, users, or data flows, or to guarantee a certain level of performance to a data flow. This book brings all of the elements of network quality of service (QoS) together in a single volume, saving the reader the time and expense of making multiple purchases. It introduces network QoS, explains the basics, describes the protocols, and discusses advanced topics, by the best and brightest experts in the field. It is a quick and efficient way to bring valuable content together from leading experts in the field while creating a one-stop-shopping opportunity for customers to receive the information they would otherwise need to round up from separate sources.

Author Notes

Adrian Farrel has nearly two decades of experience designing and developing portable communications software. As MPLS Architect and Development Manager at Data Connection Ltd., he led a team that produced a carrier-class MPLS implementation for customers in the router space. As Director of Protocol Development for Movaz Networks, Inc., he helped build a cutting-edge system that integrated many IP-based protocols to control and manage optical switches. Adrian is active within the IETF, where he is co-chair of the CCAMP working group responsible for GMPLS. He has co-authored and contributed to numerous Internet Drafts and RFCs on MPLS, GMPLS, and related technologies. He was a founding board member of the MPLS Forum, frequently speaks at conferences, and is the author of several white papers on GMPLS.

Preface	p. ix
Contributing Authors	p. xvii
Chapter 1 Network QoS: The Big Picture	p. 1
1.1 Resource Allocation	p. 2
1.2 Performance Optimization	p. 7
1.3 Summary	p. 10
1.4 Resources	p. 11
Chapter 2 Traffic Engineering and QoS Optimization Technology	p. 13
2.1 Multiprotocol Label Switching	p. 13
2.2 Generalized Multiprotocol Label Switching	p. 17
2.3 QoS Mechanisms	p. 20
2.4 Integrated Services	p. 26
2.5 Resource Reservation Protocol	p. 27
2.6 Differentiated Services	p. 28
2.7 MPLS-Based QoS Mechanisms	p. 32
2.8 Further Reading	p. 33
Chapter 3 Quality of Service	p. 35
3.1 Application Requirements	p. 36
3.2 Integrated Services and RSVP	p. 41
3.3 Differentiated Services-EF and AF	p. 51
3.4 Equation-Based Congestion Control	p. 57
3.5 Summary	p. 58
3.6 Further Reading	p. 60
Chapter 4 IP Service Management	p. 63
4.1 Choosing How to Manage Services	p. 65
4.2 Differentiated Services	p. 67
4.3 Integrated Services	p. 71
4.4 Reserving Resources Using RSVP	p. 80
4.5 Further Reading	p. 119
Chapter 5 Quality of Service Routing	p. 121
5.1 Background	p. 121
5.2 QoS Attributes	p. 126
5.3 Adapting Shortest Path and Widest Path Routing: A Basic Framework	p. 127
5.4 Update Frequency, Information Inaccuracy, and Impact on Routing	p. 131
5.5 Lessons from Dynamic Call Routing in the Telephone Network	p. 133
5.6 Heterogeneous Service, Single-Link Case	p. 134
5.7 A General Framework for Source-Based QoS Routing with Path Caching	p. 138
5.8 Routing Protocols for QoS Routing	p. 148
5.9 Summary	p. 150
Chapter 6 Quality of Service in IP-Based Services	p. 153
6.1 Quality of Service	p. 154
6.2 Voice over IP	p. 162
6.3 Operating Voice over IP	p. 165
6.4 IP Security	p. 172
6.5 Summary	p. 181
6.6 Further Reading	p. 181
Chapter 7 The Foundation of Policy Management	p. 183
7.1 Introduction-A Retrospective	p. 183
7.2 Where We Are Today	p. 189
7.3 Definition of Policy Management	p. 192
7.4 Introduction and Motivation for Policy Management	p. 194
7.5 The Need for a New Shared Information Model	p. 207
7.6 The Benefits of PBNM	p. 215
7.7 Summary	p. 220
7.8 Resources	p. 221
Chapter 8 QoS Policy Usage Examples in Policy-Based Network Management	p. 223
8.1 Introduction	p. 223
8.2 Policy Approaches	p. 224
8.3 QoS Policy Usage Examples	p. 232
8.4 Resources	p. 253
Chapter 9 IPv6 Quality of Service	p. 255
9.1 QoS Basics	p. 256
9.2 Differentiated Services and IPv6	p. 260
9.3 IPv6 Flows	p. 261
9.4 Explicit Congestion Notification in IPv6	p. 262
9.5 Summary	p. 263
Chapter 10 QoS in IP Networks Using SIP	p. 265
10.1 Quality of Service in IP Networks	p. 265
10.2 Mechanisms for QoS	p. 267
10.3 Policy-Based Admission Control	p. 271
10.4 SIP Integration with Resource Reservation: The Preconditions Framework	p. 273
10.5 SIP Integration with Policy Control: Media and QoS Authorization	p. 278
10.6 Summary	p. 284
10.7 Resources	p. 284
Chapter 11 Core Capacity Planning and Traffic Engineering in IP and MPLS Networks	p. 287
11.1 Core Network Capacity Planning	p. 287
11.2 IP Traffic Engineering	p. 298
11.3 Resources	p. 318
Index	p. 321

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