Louis Pouzin

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Louis Pouzin
Louis Pouzin en 2013.
Born	20 April 1931  Chantenay-Saint-Imbert
Alma mater	École polytechnique
Awards	Queen Elizabeth Prize for Engineering (2013) IEEE Internet Award (For his pioneering development and effective advocacy of datagram networking, the technology that enabled the rapid, inexpensive, decentralized expansion of the Internet., 2001) Internet Hall of Fame (2012) SIGCOMM Award for Lifetime Contribution (1997) Officer of the Legion of Honor (2018)

Louis Pouzin (born 20 April 1931) is a French computer scientist and Internet pioneer. He directed the development of the CYCLADES computer network in France the early 1970s, which implemented a novel design for packet communication. He was the first to implement the end-to-end principle in a wide-area network, which became fundamental to the design of the Internet.

This network was the first implementation of the pure datagram model, initially conceived and described by Donald Davies, subsequently named by Halvor Bothner-By, and seen by Louis Pouzin as his personal invention. His work, and that of his colleagues Hubert Zimmerman and Gérard Le Lann, were acknowledged by Vinton Cerf as substantial contributions to the design of TCP/IP, the protocol suite used by the Internet.