October 2003
Intermediate to advanced
368 pages
9h 48m
English
Content preview from Field Guide to Wireless LANs for Administrators and Power Users, A
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Reprise of IEEE 802.11's MMPDU Structure
All of IEEE 802.11's MMPDUs have a common overall structure, which is shown in Figure 5-1 and might be referred to as the “MMPDU skeleton,” since it represents the overall format of every MMPDU.
Figure 5-1. MMPDU frame format
The MMPDU header is expanded in Figure 5-2.
Figure 5-2. MMPDU header format
The D subfield in Figure 5-2 represents the MMPDU's Duration, the DA and SA represent the Destination and Source MAC addresses, and the BSSID is the MAC address of the STA in the AP (in infrastructure mode), ...
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