Network packet - Wikipedia
https://en.wikipedia.org/wiki/Network_packet
OverviewTerminologyArchitectureFramingContentsExamplesSee alsoIn telecommunications and computer networking, a network packet is a formatted unit of data carried by a packet-switched network. A packet consists of control information and user data; the latter is also known as the payload. Control information provides data for delivering the payload (e.g., source and destination network addresses, error detection codes, or sequencing information). Typically, control information is found in packet headers and trailers.
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