TP-Link EAP245 EAP245EU V1 User Guide - Page 42

Arbitration Inter-Frame Space - reset

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Figure 5-30 AP EDCA Parameters Queue: Arbitration InterFrame Space: 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. 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). A wait time for data frames. The wait time is measured in slots. Valid values for Arbitration Inter-Frame Space are from 1 to 15. Minimum Contention Window: Maximum Contention Window: Maximum Burst 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. 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. The Maximum Burst is a AP EDCA parameter that applies only to traffic flowing from the EAP devices to the client station. This value specifies (in milliseconds) the maximum burst length allowed for packet bursts on the wireless network. A packet burst is a collection of multiple frames transmitted without header information. The decreased overhead results in higher throughput and better performance. The valid values are multiples of 32 between 0 and 8192. 33

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Figure 5-30 AP 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 1 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.
Maximum Burst
The
Maximum Burst
is a AP EDCA parameter that applies only to
traffic flowing from the EAP devices to the client station. This value
specifies (in milliseconds) the maximum burst length allowed for
packet bursts on the wireless network. A packet burst is a collection
of multiple frames transmitted without header information. The
decreased
overhead
results
in
higher
throughput
and
better
performance.
The valid values are multiples of 32 between 0 and 8192.
33