MAC service data unit

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MAC service data unit (media access control service data unit, MSDU) is the service data unit that is received from the logical link control (LLC) sub-layer which lies above the media access control (MAC) sub-layer in a protocol stack. The LLC and MAC sub-layers are collectively referred to as the data link layer (DLL).

See also[]

• MAC protocol data unit
• Packet segmentation
• Packet aggregation

External links[]

• 802.11 Wireless LAN IEEE standard

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