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Dedications
Mike Flannagan:
I would like to dedicate this book to Anne. Thank you for your loving support and encouragement during the seemingly
endless nights and weekends spent on this project.
Richard Froom:
I would like to dedicate this book to my wife Elizabeth for her support, understanding, and patience while I was author-
ing the book. I would also like to thank Elizabeth for her cooperation and assistance in reviewing my material.
Kevin Turek:
I would like to thank Tara for all of her encouragement and patience during my involvement in this project. I would not
have been able to complete my portion of the book if not for your sacrifices and understanding. I would also like to
thank the members of the Federal Support Program for their support. Finally, I would like to thank my family and
friends for instilling in me the values and ethics that have allowed me to get to the point where I am today.
Acknowledgments
Richard would like to acknowledge his co-authors for asking him to work on this project and their efforts on their mate-
rial. Furthermore, Richard would like to acknowledge Balaji Sivasubramanian for his aid and outstanding reviews of
technical content pertaining to the Catalyst 4000 Family of switches.
Mike would like to acknowledge Dave Knuth and his other friends in Network Optimization Support for their support.
Mike would especially like to thank Chris Camplejohn, Nimish Desai, and Zahoor Khan for asking the tough questions
that always helped me learn. Thanks to the members of the AS QoS virtual team for their outstanding teamwork and
technical expertise in support of our customers. Mike would especially like to recognize Richard Watts for his support of
and contributions to the team. Finally, thanks to my new team in Cisco’s HTTS group for an exciting new opportunity to
learn.
Kevin would like to personally thank his co-authors for agreeing to do this book, and for their motivation, professional-
ism, and expertise, which ensured its timely completion without sacrificing quality. Thanks especially to Richard for his
focus and acceptance of an additional load, despite his already busy schedule.
All the authors would like to thank Jeff Raymond for his time and recommendations that contributed to the technical
accuracy and quality of the content pertaining to the Catalyst 6500 Family of switches.
A big thank you goes to the team at Cisco Press, especially Brett Bartow for his overall support of this project and Chris-
topher Cleveland and Jennifer Foster for their suggestions and input. We would like to give special thanks to our review
team of Jason, Lauren, and Balaji for their dedication to making this project successful.
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Contents at a Glance
Introduction xvi
Part I Fundamental QoS Concepts 3
Chapter 1 Quality of Service: An Overview 5
Chapter 2 End-to-End QoS: Quality of Service at Layer 3 and Layer 2 31
Chapter 3 Overview of QoS Support on Catalyst Platforms and Exploring 67
QoS on the Catalyst 2900XL, 3500XL, and Catalyst 4000
CatOS Family of Switches
Chapter 4 QoS Support on the Catalyst 5000 Family of Switches 95
Part II Advanced QoS Concepts 121
Chapter 5 Introduction to the Modular QoS Command-Line Interface 123
Chapter 6 QoS Features Available on the Catalyst 2950 and 3550 Family of Switches 143
Chapter 7 QoS Features Available on the Catalyst 4000 IOS Family of Switches 199
and the Catalyst G-L3 Family of Switches
Chapter 8 QoS Support on the Catalyst 6500 249
Chapter 9 QoS Support on the Catalyst 6500 MSFC and FlexWAN 337
Chapter 10 End-to-End QoS Case Studies 377
Index 403
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