MAC service data unit
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This article provides insufficient context for those unfamiliar with the subject. (March 2024) |
MAC service data unit (media access control service data unit, MSDU) is the service data unit in the IEEE 802 reference model of network architecture. This data unit is exchanged at the interface between the media access control (MAC) sub-layer and the layer immediately above it, typically the (optional) logical link control (LLC) sub-layer.[1][2] The LLC and MAC sub-layers are collectively referred to as the data link layer (DLL).
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