Written by two experts in the field who deal with QOS predicaments every day and now in this 2nd edition give special attention to the realm of Data Centers, QoS Enabled Networks:Tools and Foundations, 2nd Edition provides a lucid understanding of modern QOS theory mechanisms in packet networks and how to apply them in practice. This book is focuses on the tools and foundations of QoS providing the knowledge to understand what benefits QOS offers and what can be built on top of it.
About the Authors x
Foreword xi
Preface xiii
Acknowledgments xv
Abbreviations xvi
Part I THE QOS REALM 1
1 The QOS World 3
1.1 Operation and Signaling 4
1.2 Standards and Per?]Hop Behavior 5
1.3 Traffic Characterization 8
1.4 A Router without QOS 11
1.5 Conclusion 12
References 12
Further Reading 12
2 The QOS Tools 13
2.1 Classifiers and Classes of Service 13
2.2 Metering and Coloring—CIR/PIR Model 15
2.3 The Policer Tool 16
2.4 The Shaper Function 17
2.5 Comparing Policing and Shaping 18
2.6 Queue 19
2.7 The Scheduler 21
2.8 The Rewrite Tool 21
2.9 Example of Combining Tools 23
2.10 Delay and Jitter Insertion 27
2.11 Packet Loss 31
2.12 Conclusion 32
Reference 33
3 Challenges 34
3.1 Defining the Classes of Service 35
3.2 Classes of Service and Queues Mapping 37&lsp
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