User Datagram Protocol
A thin transport that adds only source/destination ports and an optional checksum to IP: no connection, no ordering, no retransmission. Its lack of machinery is the point - DNS, and QUIC (which rebuilds reliability in userspace) ride on it.
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A thin transport that adds only source/destination ports and an optional checksum to IP: no connection, no ordering, no retransmission. Its lack of machinery is the point - DNS, and QUIC (which rebuilds reliability in userspace) ride on it.
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