Protocol data unit: Difference between revisions

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===Media access control protocol data unit===
A '''media access control (MAC) protocol data unit''' ('''MPDU''') is a message that is exchanged between [[media access control]] (MAC) entities in a communication system based on the layered [[OSI model]].
 
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]].