Buffalo WAPS-APG600H User Manual page 55

Chapter 3 Configuration
Parameter Meaning
CWmin, CWmax
This sets the maximum and minimum values of the contention
window. The contention window is used in the frame collision
avoidance mechanism that is performed in IEEE802.11, and
generally, smaller values in the window result in a higher likelihood
that the queue will obtain sending rights.
Aifsn
Sets the frame sending interval. The units are slots (same as
window value defined in CWmin and CWmax). Smaller frame
sending intervals enable earlier start times for the backoff
algorithm, and so this results in a higher priority for the queue.
Txop
This shows the time that can be assigned when the queue obtains
sending rights. One unit is 32 ms. Longer times enables the transfer
of more frames by the sending rights obtained at one time, but this
also harms the realtime responsiveness of other queues.
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