Describing communication between two systems where data packets are sent singly and each must carry addressing information. Each data packet is a separate datagram. Typically data transfer is unreliable, as in Internet UDP and IP. This makes network architecture simpler and potentially more efficient. However, unless the application is insensitive to this potential loss, higher layer protocols must use error recovery, as in ARQ, to preserve the integrity of data. Contrast connection-oriented.
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(NETWORK GLOSSARY) Data transfer without the existence of a virtual circuit.
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A type of relationship between two devices where each information packet must contain the address of the partner device. Connectionless communication allows a message to be sent from one end point to another without prior arrangement, and has very low overhead, but cannot guarantee that there will be no loss, error insertion, mis-delivery, duplicat...
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https://www.encyclo.co.uk/local/22803
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