Glossary

UDP – User Datagram Protocol
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UDP – User Datagram Protocol

UDP is a lightweight Transport Layer protocol, providing source and destination port addressing for the multiplexing/demultiplexing of higher layer applications onto the same transport bearer. Other than port addressing, the UDP header contains a Length and a Checksum field, resulting in a low transmission overhead, albeit at the cost of reliable delivery (UDP does not provide a retransmission facility).

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