Ongoing ATM Standardization Activities A. Current Standardization Activities in ITU-T

Chapter 10—ATM Traffic Simulation

I. Queuing Model for the ATM Traffic Simulation II. ATM Traffic Model

III. Validation of Simulation Results IV. Simulation Results

Chapter 11—Ongoing ATM Standardization Activities

I. Current Standards A. ITU-T Recommendations for ATM

B. ATM Forum Specifications C. IETF’s ATM-Related RFC Standards

D. ANSI T1 Committee Specifications for ATM E. Frame Relay Forum Specifications for ATM

II. Ongoing ATM Standardization Activities A. Current Standardization Activities in ITU-T

B. Current Standardization Activities in ATM Forum as of February 1998 C. IETF’s Current Standardization Activities References Glossary Index Copy r igh t © CRC Pr e ss LLC by Abhijit S. Pandya; Ercan Sen CRC Press, CRC Press LLC ISBN: 0849331390 Pub Date: 110198 Table of Contents Preface In the last few years, the Asynchronous Transfer Mode ATM data transmission technique has been promoted as the foundation for the next generation of telecommunication infrastructure worldwide. Fueled by the tremendous expansion of Internet service as well as the strong support by the U.S. government for development of the Information Super Highway in the U.S., a tremendous amount of effort is being spent by the standardization organizations such as ITU-T in Europe and the ATM Forum in the U.S. as well as by the telecommunication industry and the scientific community. As with any other hot and trendy technology development, ATM technology is experiencing certain media hype and being presented as the ultimate technology for the telecommunication infrastructure of the 21 st century. Our main objective in this book is to go beyond the media hype and provide the reader with a more objective and realistic view of ATM technology, its potentials and realistic deployment strategies. Transition to ATM technology will be an evolutionary not a revolutionary process due to the tremendous amount of investment already poured into the current telecommunication infrastructure worldwide. Certainly we cannot afford to switch to a fully ATM-based telecommunication environment overnight. It is our opinion that a significant ATM-based telecommunication infrastructure will take at least a decade to develop. As history indicates, technology alone cannot drive its success unless there is a significant demand for its use and the solution the new technology is providing is economical. Unless ATM technology satisfies these criteria, its fate may not be any different than some of the technologies developed in the last decade, such as N-ISDN. We identify two critical features of ATM technology which will allow it to create necessary market conditions for a large-scale deployment: its ability to allow inter-working of today’s several incompatible communication technologies and to provide a high-speed, high bandwidth backbone telecommunication network to satisfy the tremendous demand created by the Internet service. Eventually, we can expect that ATM technology will replace currently deployed multiple telecommunication technologies. The original intent of this book is to provide telecommunication professionals with a compressive view Table of Contents Copyr ight © CRC Pr ess LLC by Abhijit S. Pandya; Ercan Sen CRC Press, CRC Press LLC ISBN: 0849331390 Pub Date: 110198 Table of Contents About the Authors Dr. A. S. Pandya is an associate professor at the Computer Science Department, Florida Atlantic University. He has published over 75 papers and book chapters, and a number of books in the areas of neural networks and learning paradigms. This includes a text published by CRC Press and IEEE Press entitled, “Pattern Recognition using Neural Networks in C++.” He consults for several companies including IBM, Motorola, Coulter Industries, and the U.S. Patent Office. He received his undergraduate education at I.I.T., Bombay. He also has a M.S. and a Ph.D. in Computer Science from Syracuse University, New York. Dr. Ercan Sen is a Sr. Product Manager at Siemens Telecom Networks, Boca Raton, Florida. Previously, he has held various engineering staff and supervisory positions at Siemens Telecom Networks. He has over seventeen years of experience in the field of software design for Electronic Telephone Switching systems. He received the B.S. degree in electrical engineering from the Middle East Technical University, Ankara, Turkey, in 1981, and the M.E. and Ph.D. degrees in computer engineering from Florida Atlantic University, Boca Raton, Florida, in 1990 and 1996, respectively. His research interests include neural network applications and high-speed telecommunication networks. He is a member of IEEE since 1982. Acknowledgments We are grateful to Dr. Mohammad Ilyas, Chair of Computer Science and Engineering at Florida Atlantic University for his support and encouragement during the preparation of this manuscript. We also had strong encouragement from Dr. Borko Furht, Dr. Neal Coulter, Dr. Ravi Shankar, and Dr. Sam Hsu of the CSE department of FAU, which is appreciated. We would like to thank Prof. R. Sudhakar, Prof. P. Neelakanta and Prof. J.A.S. Kelso at FAU, who have shared their knowledge and expertise over the last several years. We would like to thank our friend Bill McLean for providing his support to this project. I E.S would like to thank my colleagues at Siemens Telecom Networks for their support, encouragement and insightful discussions during the writing of the manuscript. I A.P. would like to thank my father Dr. S.P. Pandya for providing the inspiration through his own illustrious career to continue to write books. I A.P. would like to thank my wife Bhairavi for her understanding, patience, and help in the preparation of illustrations and the manuscript. I E.S. would like to express my utmost gratitude to my wife Phoungchi and my son Justin for their sacrifice, patience and understanding which made it possible for me to allocate my time for writing the manuscript. Dedication This book is dedicated to: my children Rajsee and Divya. A.P. my wife Phuongchi and my son Justin. E.S. Table of Contents Copyr ight © CRC Pr ess LLC by Abhijit S. Pandya; Ercan Sen CRC Press, CRC Press LLC ISBN: 0849331390 Pub Date: 110198 Previous Table of Contents Next

Chapter 1 Introduction

At the present time, the Asynchronous Transfer Mode ATM data transmission technique [McDysan 1995, Stallings 1995] is being promoted as the foundation for the next generation global telecommunication infrastructure. Fueled by the tremendous expansion of the Internet service as well as the strong support by the U.S government for the development of the Information Super Highway in the U.S., a tremendous amount of effort is being spent by the standardization organizations such as ATM Forum in the U.S. and ITU-T in Europe, as well as the telecommunications industry and the scientific community. We identify two critical features of ATM technology which will likely create necessary market conditions for a large-scale deployment: its ability to allow inter-working of various incompatible telecommunication technologies which exist today, and its ability to provide a high-speed, high- bandwidth backbone telecommunication network to satisfy the tremendous demand created by the Internet service. Eventually, we expect that the ATM technology will replace currently deployed multiple telecommunication technologies in a decade. In an ATM network environment, the messages generated by various sources data, voice, video, etc. are divided into fixed-length 53-octet packets called ATM cells and transmitted over a transmission path using statistical multiplexing technique. Due to statistical multiplexing of ATM cells, optimization of routing of these cells in an ATM switching network has been a significant challenge for the scientists. Two main contributors to this challenge are the high-speed operation of ATM networks and the multiplexing of cells with different statistical characteristics generated by various sources. These two factors require a high-speed and highly adaptive routing controller for ATM switching networks in order to quickly adapt to fast changing cell traffic and maintain an acceptable level of Quality of Service QOS.

I. Outline of the Book

The book is organized as follows. Chapter 1 provides a market analysis for ATM technology. Chapter 2