DIR-878 AC1900 MU-MIMO Wi-Fi Gigabit Router
User Manual
Configuring via Web-based Interface
To edit the parameters of an Access Category, left-click the relevant line. In the opened window,
change the needed parameters.
Figure 89. 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.
ACM
Admission Control Mandatory.
If the switch is moved to the right, the device cannot use the
relevant Access Category.
ACK
Acknowledgment. Answering response requests while transmitting.
Displayed only in the Access Point section.
If the switch is moved to the left, the router answers requests.
If the switch is moved to the right, the router does not answer
requests.
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