He is responsible for Tellium\'s IP over optical and optical internetworking architectures. Prior to joining Tellium, Dr. Rajagopalan was with AT&T Bell Laboratories, Bellcore, and NEC C&C Research Laboratories, where he developed protocols and algorithms for wireless data networking, Internet routing and multicast, QoS, traffic engineering, and IP switching. Rajagopalan has published numerous papers and delivered many invited lectures on topics covering his areas of interest, and he has filed patents relating to wireless services and internetworking, and optical networks. He is also very active in standardization activities and he has made significant contributions to the IETF, the ATM Forum and the Optical Interworking Forum. Rajagopalan received his B. Tech degree from the Indian Institute of Technology, and his M.S and Ph.D degrees from the University of Illinois at Urbana-Champaign, all in Computer Science.