Draytek VigorAP 802 User Manual page 50

To improve this problem, Airtime Fairness is added for VigorAP 802. Airtime Fairness function tries
to assign similar airtime to each station (A/B) by controlling TX traffic. In the following figure, Station
B(11n) has higher probability to send data packets than Station A(11g). By this way, Station B(fast
rate) gets fair airtime and it's speed is not limited by Station A(slow rate).
It is similar to automatic Bandwidth Limit. The dynamic bandwidth limit of each station depends on
instant active station number and airtime assignment. Please note that Airtime Fairness of 2.4GHz
and 5GHz are independent. But stations of different SSIDs function together, because they all use
the same wireless channel. IN SPECIFIC ENVIRONMENTS, this function can reduce the bad influence
of slow wireless devices and improve the overall wireless performance.
Suitable environment:
(1) Many wireless stations.
(2) All stations mainly use download traffic.
(3) The performance bottleneck is wireless connection.
Available settings are explained as follows:
Item
Enable Airtime
Fairness
Description
Try to assign similar airtime to each wireless station by controlling TX
traffic.
Airtime Fairness – Click the link to display the following screen of
airtime fairness note.
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