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Catenet is an obsolete term for a system of packet-switched communication networks interconnected via gateways.[1]

The term was coined by Louis Pouzin,[2] a pioneer in packet-switching technology and founder of the CYCLADES network, at a time when network meant what is now called a local area network. Catenet was the concept of linking these networks into a network of networks with specifications for compatibility of addressing and routing. The term catenet was gradually displaced by the short-form of the term internetwork, internet (lower-case i), when the Internet Protocol replaced earlier protocols on the ARPANET.


  1. ^ The Catenet Model for internetworking, V. Cerf, DARPA Information Processing Techniques Office, IEN 48, July 1978
  2. ^ A Proposal for Interconnecting Packet Switching Networks, L. Pouzin, Proceedings of EUROCOMP, Brunel University, May 1974, pp. 1023-36.