D-Link DIR-842 User Manual page 122

DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router
User Manual
The WMM function allows assigning priorities for four Access Categories (AC):
BK (Background), low priority traffic (print jobs, file downloads, etc.).
•
BE (Best Effort), traffic from legacy devices or devices/applications that do not support
•
QoS.
VI (Video).
•
VO (Voice).
•
Parameters of the Access Categories are defined for both the router itself (in the Access Point
section) and wireless devices connected to it (in the Station section).
To edit the parameters of an Access Category, left-click the relevant line. In the opened window,
change the needed parameters.
Figure 97. The window for changing parameters of the WMM function.
Parameter
AIFSN
CWMin/CWMax
TXOP
Arbitrary Inter-Frame Space Number. This parameter influences
time delays for the relevant Access Category. The lower the value,
the higher is the Access Category priority.
Contention Window Minimum/Contention Window Maximum. Both
fields influence time delays for the relevant Access Category. The
CWMax field value should not be lower, than the CWMin field
value. The lower the difference between the
and the CWMin field value, the higher is the Access Category
priority.
Transmission Opportunity. The higher the value, the higher is the
Access Category priority.
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Configuring via Web-based Interface
Description
CWMax field value