Steve Deering is a Cisco Fellow and a member of Cisco's Advanced Internet Architectures Group, where he is working on the development and standardization of architectural enhancements to the Internet Protocol.Prior to joining Cisco in 1996, he spent six years at Xerox's Palo Alto Research Center, engaged in research on advanced internet technologies, including multicast routing, mobile internetworking, scalable addressing, and support for multimedia applications over the Internet.He is a member of the Internet Architecture Board, a present or past chair of several Working Groups of the Internet Engineering Task Force (IETF), the inventor of IP Multicast, and the lead designer of the new version of the Internet Protocol, IPv6. He received his Ph.D. from Stanford University.