TP-Link EAP245 EAP245EU V1 User Guide - Page 43

Station EDCA Parameters

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5.5.2 Station EDCA Parameters Station EDCA parameters affect traffic flowing from the client station to the EAP device. Figure 5-31 Station EDCA Parameters Queue： Queue displays the transmission queue. By default, the priority from high to low is Data 0, Data 1, Data 2, and Data 3. The priority may be changed if you reset the EDCA parameters. Data 0 (Voice)-Highest priority queue, minimum delay. Timesensitive data such as VoIP and streaming media are automatically sent to this queue. Data 1 (Video)-High priority queue, minimum delay. Timesensitive video data is automatically sent to this queue. Data 2 (Best Effort)-Medium priority queue, medium throughput and delay. Most traditional IP data is sent to this queue. Data 3 (Background)-Lowest priority queue, high throughput. Bulk data that requires maximum throughput and is not timesensitive is sent to this queue (FTP data, for example). Arbitration InterFrame Space： A wait time for data frames. The wait time is measured in slots. Valid values for Arbitration Inter-Frame Space are from 0 to 15. Minimum Contention Window： A list to the algorithm that determines the initial random backoff wait time (window) for retry of a transmission. This value cannot be higher than the value for the Maximum Contention Window. Maximum Contention Window： The upper limit (in milliseconds) for the doubling of the random backoff value. This doubling continues until either the data frame is sent or the Maximum Contention Window size is reached. This value must be higher than the value for the Minimum Contention Window. 34

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5.5.2
Station EDCA Parameters
Station EDCA parameters affect traffic flowing from the client station to the EAP device.
Figure 5-31 Station EDCA Parameters
Queue
：
Queue displays the transmission queue. By default, the priority
from high to low is Data 0, Data 1, Data 2, and Data 3. The priority
may be changed if you reset the EDCA parameters.
Data 0 (Voice)
—Highest priority queue, minimum delay. Time-
sensitive
data
such
as
VoIP
and
streaming
media
are
automatically sent to this queue.
Data 1 (Video)
—High priority queue, minimum delay. Time-
sensitive video data is automatically sent to this queue.
Data 2 (Best Effort)
—Medium priority queue, medium throughput
and delay. Most traditional IP data is sent to this queue.
Data 3 (Background)
—Lowest priority queue, high throughput.
Bulk data that requires maximum throughput and is not time-
sensitive is sent to this queue (FTP data, for example).
Arbitration Inter-
Frame Space
：
A wait time for data frames. The wait time is measured in slots.
Valid values for
Arbitration Inter-Frame Space
are from 0 to 15.
Minimum Contention
Window
：
A list to the algorithm that determines the initial random backoff
wait time (window) for retry of a transmission. This value cannot
be higher than the value for the
Maximum Contention Window
.
Maximum Contention
Window
：
The upper limit (in milliseconds) for the doubling of the random
backoff value. This doubling continues until either the data frame
is sent or the Maximum Contention Window size is reached.
This value must be higher than the value for the
Minimum
Contention Window.
34