History I came to Cornell from Stanford, where I spent a couple of years as a PhD student. My work and research at Stanford was about streaming live media, like audio and video, over the internet. As part of this I modified IGMP one of the multicast protocols, developed protocols for multicasting /unicasting layered video, and developed the Virtual Classroom system. The initial prototype was deployed in the 1995 Spring and Fall quarters and used as an alternative to the Stanford Instructional Television Network SITN program which uses microwave links. Students at remote sites used the software to asynchronously access class lectures and notes, over the internet. We also stumbled upon the fact that other media, like text, slides, etc, linked with portions of video enhanced its usefulness greatly. This lead to the formation of a company Vxtreme Inc., Palo Alto, CA. Vxtreme developed client sever applications for streaming multimedia delivery over the internet. It was accquired by Microsoft in Aug 1997. I graduated from Cornell in Aug 1998, and joined the Computer Science Department as an Assistant Professor. As part of my research in the Cornell Networking Research Group I worked on the Entrapid network simulator. This work led to the formation of Ensim Corporation .