260

 

 

 

 

AT-TQ2403 - Management Software - User's Guide

 

 

 

 

 

 

wlan1

vi

2

7

15

94

wlan1

be

3

15

1023

0

wlan1

bk

7

15

1023

0

wlan0

vo

14

3

7

47

wlan0

vi

2

7

15

94

wlan0

be

3

15

1023

0

wlan0

bk

7

15

1023

0

Setting Minimum and Maximum Contention Windows (cwmin, cwmax)

The Minimum Contention Window (cwmin) sets the upper limit (in milliseconds) of the range from which the initial random backoff wait time is determined. For more details, see “Random Backoff and Minimum / Maximum Contention Windows” and the more detailed property description for this value in that topic.)

Valid values for the "cwmin" are 1, 3, 7, 15, 31, 63, 127, 255, 511, or 1024. The value for "cwmin" must be lower than the value for "cwmax".

The Maximum Contention Window (cwmax) sets 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. For more details, see “Random Backoff and Minimum / Maximum Contention Windows” and the more detailed property description for this value in that topic.)

Valid values for the "cwmax" are 1, 3, 7, 15, 31, 63, 127, 255, 511, or 1024. The value for "cwmax" must be higher than the value for "cwmin".

Set cwmin and cwmax on the AP

To set the Minimum and Maximum Contention Windows (cwmin, cwmax) on AP-to-station traffic:

set tx-queue wlan0 with queue Queue_Name to cwmin cwmin_Value cwmax cwmax_Value

Where Queue_Name is the queue on the AP to which you want the setting to apply and cwmin_Value and cwmax_Value are the values (in milliseconds) you want to specify for contention back-off windows.

For example, this command sets the AP Video queue (data1) cwmin value to 15 and cwmax value to 31.

AT-TQ2403# set tx-queue wlan0 with queue data1 cwmin 15 cwmax 31

View the results of this configuration update (bold in the command output highlights the modified values):

AT-TQ2403# get tx-queue

 

name

queue aifs

cwmin cwmax burst

---------------------------------------------------------------------

wlan1

data0

1

3

7

1.5

wlan1

data1

1

7

15

3.0

wlan1

data2

3

15

63

0

wlan1

data3

7

15

1023

0

wlan0

data0

13

3

7

1.5

wlan0

data1

1

15

31

3.0

wlan0

data2

3

15

63

0

wlan0

data3

7

15

1023

0

Set cwmin and cwmax on the Station

To set the Minimum and Maximum Contention Windows (cwmin, cwmax) on station-to-AP traffic:

set wme-queue wlan0 with queue Queue_Name to cwmin cwmin_Value cwmax