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Wavelan
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Joined: Fri Sep 01, 2006 10:23 am

Advanced WMM Setting

Fri Aug 24, 2007 6:38 am

Dear MT Rep,

We would like to see advanced WMM configuration is available for us to configure and change.

Its config like :

CWmin - Minimum Contention Window. This parameter is input to the algorithm that determines the initial random backoff wait time ("window") for retry of a transmission. The value specified here in the Minimum Contention Window is the upper limit (in milliseconds) of a range from which the initial random backoff wait time is determined.

The first random number generated will be a number between 0 and the number specified here. If the first random backoff wait time expires before the data frame is sent, a retry counter is incremented and the random backoff value (window) is doubled. Doubling will continue until the size of the random backoff value reaches the number defined in the Maximum Contention Window.
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".

CWmax -Maximum Contention Window. The value specified here in the Maximum Contention Window is 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. Once the Maximum Contention Window size is reached, retries will continue until a maximum number of retries allowed is reached. 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".

AIFSN - The Arbitration Inter-Frame Spacing Number specifies a wait time (in milliseconds) for data frames

TXOP(b) and TXOP a/g) - Transmission Opportunity for "a" "b" and "g" modes is an interval of time when a WME AP has the right to initiate transmissions onto the wireless medium (WM). This value specifies (in milliseconds) the Transmission Opportunity (TXOP) for AP; that is, the interval of time when the WMM AP has the right to initiate transmissions on the wireless network.

Configuration dialog like this is preferred : http://www.linksysinfo.org/forums/showt ... hp?t=47262

Thank you very much for your time and effort.

High Regards,
Andrei
 
2jarek
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Posts: 151
Joined: Thu May 17, 2007 3:28 pm
Location: Poland

Re: Advanced WMM Setting

Thu Oct 04, 2018 11:15 am

Mikrotik secretly change WMM parameters many times.

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