Control Frames
Control frames are used to gain control of and to help deliver data over a channel. Control frames contain only frame header information and no data payload. There are nine different control frames possible. Be familiar with the following four:
ACK—A short frame that is sent as an acknowledgment of a unicast frame that has been received.
Block ACK—A short frame that is sent as an acknowledgment of a burst of frames send as a single block of data.
PS-Poll—The Power Save Poll frame is sent from a client to an AP to request the next ...
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