Qué (quién) es connectionless - definición

Connectionless communication, often referred to as CL-mode communication,Information Processing Systems - Open Systems Interconnection, "Transport Service Definition - Addendum 1: Connectionless-mode Transmission", International Organization for Standardization, International Standard 8072/AD 6, December 1986. is a data transmission method used in packet switching networks in which each data unit is individually addressed and routed based on information carried in each unit, rather than in the setup information of a prearranged, fixed data channel as in connection-oriented communication.

The data communication method in which communication occurs between hosts with no previous setup. Packets sent between two hosts may take different routes. UDP is a connectionless protocol. Also called packet switching. Contrast circuit switching, connection-oriented.

Connectionless-mode Network Service (CLNS) or simply Connectionless Network Service is an OSI network layer datagram service that does not require a circuit to be established before data is transmitted, and routes messages to their destinations independently of any other messages."Section 3: Definition of the Connectionless-Mode Service", ITU-T Recommendation X.