Frame Formats - Siemens IEEE802.11 Tutorial

Frame Formats

802.11 MAC Header
Bytes:
2 2
Frame Duration
Addr 1
Control ID
Bits: 2 2 4
Protocol
Type SubType
Version
n
MAC Header format differs per Type:
– Control Frames (several fields are omitted)
– Management Frames
– Data Frames
n
Includes Sequence Control Field for filtering of duplicate caused by
ACK mechanism.
WLAN-IEEE802.11 Tutorial (Maximilian Riegel), 021018-wlan-tutorial.ppt
6 6 6
Addr 2 Addr 3
1 1 1
To From More
DS DS Frag
2 6
Addr 4
1 1 1
Pwr More
Retry WEP
Mgt Data
0-2312 4
Frame
CRC
Body
1 1
Rsvd
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