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Tutorials & Workshops - ACM SIGMETRICS 2000

Group (Multicast) Communication in Wide-Area Networks

Authors
Don Towsley

Department of Computer Science
University of Massachusetts
 

Abstract
There is a growing demand for network support for group applications, those that involve three or more participating users. Examples of such applications include teleconferencing, distributed games, software distribution, distributed database updates, and command/control systems. This tutorial will focus on the fundamental issues that arise when developing appropriate network support for these applications and the recent trends in their resolution. The most important of these issues relate to the scalability of proposed services and their suitability for applications including users with widely differing capabilities. We will begin by reviewing the Internet's IP multicast model and then focus on the problem of multicast routing and review some basic approaches that have been proposed. We will then focus on the following services required to support group communications
    - reliable data transfer,
    - congestion control and flow control,
    - support for continuous media
We will conclude with a brief description of some of the outstanding performance issues in this area.
 
Who should attend?
This tutorial is intended for students and researchers who are familiar with networking principles and who would like an overview of multicast networking.
 
Biography
Don Towsley holds a B.A. in Physics (1971) and a Ph.D. in Computer Science (1975) from University of Texas. From 1976 to 1985 he was a member of the faculty of the Department of Electrical and Computer Engineering at the University of Massachusetts, Amherst. He is currently a Distinguished Professor at the University of Massachusetts in the Department of Computer Science. He has held visiting positions at IBM T.J. Watson Research Center, Yorktown Heights, NY (1982-1983); Laboratoire MASI, Paris, France (1989-1990); INRIA, Sophia-Antipolis, France (1996); and AT&T Labs - Research, Florham Park, NJ (1997). His research interests include networks, multimedia systems, and performance evaluation.

He has received several awards including the 1998 IEEE Communications Society William Bennett Paper Award and two best conference paper awards from ACM SIGMETRICS in 1987 and 1996. Last, he has been elected Fellow of both the ACM and IEEE.
 


[Last updated Fri Apr 14 2000]

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