D-Link N300 - Client

DIR-620S Wireless N300 Router with 3G/LTE Support and
USB Port
User Manual
Configuring via Web-based Interface
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 112. The window for changing parameters of the WMM function.
Parameter Description
AIFSN
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.
CWMin / CWMax
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 CWMax field value
and the CWMin field value, the higher is the Access Category
priority.
TXOP
Transmission Opportunity. The higher the value, the higher is the
Access Category priority.
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