Vern Paxson received his Ph.D. from the University of California at Berkeley.  He is a senior scientist with the AT&T Center for Internet Research at the International Computer Science Institute in Berkeley, CA, and a staff scientist at the Lawrence Berkeley National Laboratory.  His research focusses on Internet measurement and network intrusion detection. He serves on the editorial board of IEEE/ACM Transactions on Networking, and has been active in the IETF, chairing working groups on performance metrics, TCP implementation, and endpoint congestion management, as well as serving on the Internet Engineering Steering Group as a director for the Transport area.