Professor Ross joined Polytechnic Institute of New York University as the Leonard Shustek Distinguished Chair Professor in January 2003. Before joining Polytechnic Institute of New York University, he was a professor for five years in the Multimedia Communications Department at Eurecom Institute in Sophia Antipolis, France. From 1985 through 1997, he was a professor in the Department of Systems Engineering at the University of Pennsylvania. He received a B.S.E.E from Tufts University, a M.S.E.E. from Columbia University, and a Ph.D. in Computer and Control Engineering from The University of Michigan. Professor Ross has worked in stochastic modeling, QoS in packet-switched networks, video streaming, video on demand, multi-service loss networks, web caching, content distribution networks, peer-to-peer networks, application-layer protocols, voice over IP, optimization, queuing theory, optimal control of queues, and Markov decision processes. He is an associate editor for IEEE/ACM Transactions on Networking. He has also served on the editorial boards of IEEE Transactions on Automatic Control, Operations Research, Queuing Systems: Theory and Applications (QUESTA), Probability in the Engineering and Information Sciences (PEIS), and Telecommunication Systems. He was co-program chair for ACM Multimedia 2002 and program chair for the 3rd INFORMS/ Telecommunications Conference in 1995. Professor Ross is co-author (with James F. Kurose) of the best-selling textbook, Computer Networking: A Top-Down Approach Featuring the Internet, published by Addison-Wesley (preliminary edition in 1999, first edition in 2000, second edition in 2002). The text is used by more than 200 U.S. universities each academic year. It is also widely used internationally and has been translated into several languages. Professor Ross is also the author of the research monograph, Multiservice Loss Models for Broadband Communication Networks, published by Springer in 1995. From July 1999 to July 2001, Professor Ross took a leave of absence to found and lead Wimba, an Internet technology start-up. Professor Ross was Wimba's original CEO from July 1999 to September 2000, and its CTO from September 2000 to July 2001. Wimba develops and markets Java-based asynchronous voice-over-IP technologies, accessible both through the Web and through mobile phones. Professor Ross currently serves as advisor to Wimba.

Dr. Ross will discuss SECURITY ISSUES IN P2P. P2P architectures are currently employed in a variety of applications, including file sharing, file distribution, video streaming, and VoIP. Because the P2P paradigm has become central to many applications, it is important to understand how P2P systems can be attacked and defended. In this talk, we survey our recent Internet measurement work on attacks both "on" and "from" P2P applications.