802.11 MAC Header

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Join David for an overview of the 802.11 MAC header. By now you know that the technical name for an 802.11 Wi-Fi Frame is the MAC Protocol Data Unit (MPDU) and the three core components are the Layer 2 MAC header, the MAC Service Data Unit, and the Trailer. Dive into the MAC header in this episode of The Wi-Fi Minute.

Key Definitions:
- MAC Header – frame control information, duration information, MAC addressing, sequence control, QoS control information, and HT control information are all found in the MAC Header.
- Every 802.11 frame contains a MAC header that contains layer 2 information.
- The layer 2 information is not encrypted and is always visible when viewed with a protocol analyzer.
- The 802.11 MAC header has nine major fields, four of which are used for addressing.

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Extreme Networks
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