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Line 57: A '''media access control protocol data unit''' ('''MAC PDU''' or '''MPDU''') is a message that is exchanged between [[media access control]] (MAC) entities in a communication system based on the layered [[OSI model]].<ref name=":0">{{Cite web \|date=2006 \|title=Wimax MAC-Upperlayer Services \|url=http://www.comlab.hut.fi/opetus/4210/presentations/37_wimax_mac.pdf \|archive-url=https://ghostarchive.org/archive/20221009/http://www.comlab.hut.fi/opetus/4210/presentations/37_wimax_mac.pdf \|archive-date=2022-10-09 \|url-status=live \|website=www.comlab.hut.fi \|pages=12–15}}</ref> In systems where the MPDU may be larger than the [[MAC service data unit]] (MSDU), the MPDU may ''include'' multiple MSDUs as a result of [[packet aggregation]]. In systems where the MPDU is smaller than the MSDU, then one MSDU may ''generate'' multiple MPDUs as a result of [[packet segmentation]].<ref name=":0" /> ==See also== * {{Slink\|Distributed Interactive Simulation\|Protocol data units}} * [[IP fragmentation]] * [[MAC service data unit]] * [[Smart card application protocol data unit]] * [[Transaction Protocol Data Unit]]

Protocol data unit: Difference between revisions