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CLNP (Connectionless Network Protocol)
Note: Many topics at this site are reduced versions of the text in "The Encyclopedia of Networking and Telecommunications." Search results will not be as extensive as a search of the book's CD-ROM.
CLNP is the equivalent of the IP (Internet Protocol) for OSI (Open Systems Interconnection) networks, with the primary difference being the size of the address. CLNP's address size is 20 bytes, as compared to IP's 4 bytes; so CLNP has an advantage over IP, which is experiencing an address shortage. However, the OSI protocols have not gained worldwide acceptance and do not appear to be viable for anything other than a reference model at this writing. CLNP exists in the network layer of the OSI protocol stack. As the name implies, it provides connectionless datagram services over OSI networks.
At one time, it was thought that OSI protocols would replace the Internet protocols on the government-funded Internet. The topic "Routing on the Internet" provides a historical perspective for this.
Copyright (c) 2001 Tom Sheldon and Big Sur Multimedia.