Christian HUITEMA has conducted for several years research in network protocols and network applications. He is now at INRIA in Sophia-Antipolis, where he leads the research project ``RODEO'', whose objective is the definition and the experimentation of communication protocols for very high speed networks, at one Gbit/s or more. This includes the study of high speed transmission control protocols, of their parametrisation and of their insertion in the operating systems, and the study of the synchronisation functions and of the management of data transparency between heterogeneous systems. Amongst the output of the RODEO project, one can count one of the most performant ASN.1 compiler, MAVROS, and the IP based H.261 videoconferencing system, IVS. Previously, he took part to the NADIR project, investigating computer usage of telecommunication satellites, where he took part to the definition and development of specialized ``transport'' protocol for the high throughput, long delays and possibly multipoint links provided by the satellites -- this was the subject of his doctorate thesis. He then joined the GIPSI project, where he was in charge of developments of transmission protocols for the SM90 workstation, including a local network version of the X.25 protocol, a pre-NFS ``network disk'' protocol, an implementation of IP over X.25, OSI transport and session layer software and one of the earliest X.400 systems. After joining INRIA in Sophia-Antipolis, he took part to the ESPRIT project THORN, which has provided one of the first X.500 conformant directory system; the initial developments of the ASN.1 compiler MAVROS was done within this project. Christian Huitema graduated from the Ecole Polytechnique in Paris in 1975, and received is "Doctorat es Sciences" from the University of Paris-VI in 1985. He is since May 1993 the chair of the Internet Architecture Board (IAB).