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plural of protocol data units beeing sent (pdu's) |
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In [[telecommunication]]s, the term '''protocol data unit''' ('''PDU''') has the following meanings:
#[[Information]] that is delivered as a unit or units among peer entities of a [[computer network|network]] and that may contain control information, [[address]] information, or [[data]].
#In layered systems, a unit of data that is specified in a [[communications protocol|protocol]] of a given [[layer]] and that consists of [[protocol-control information]] of the given layer and possibly [[User (telecommunications)|user]] data of that layer. For example: [[BPDU| Bridge PDU]] or [[iSCSI]] PDU
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