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WMM is an abbreviation of Wi-Fi Multimedia. It defines the priority levels for four access
categories derived from 802.1d (prioritization tabs). The categories are designed with specific
types of traffic, voice, video, best effort and low priority data. There are four accessing
categories - AC_BE , AC_BK, AC_VI and AC_VO for WMM.
APSD (automatic power-save delivery) is an enhancement over the power-save mechanisms
supported by Wi-Fi networks. It allows devices to take more time in sleeping state and
consume less power to improve the performance by minimizing transmission latency.
Available settings are explained as follows:
Item
Scan
WMM Capable
APSD Capable
Aifsn
CWMin/CWMax
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Description
It is used to discover all the connected AP. The results will
be shown on the box above this button.
To apply WMM parameters for wireless data transmission,
please click the Enable radio button.
The default setting is Disable.
It controls how long the client waits for each data
transmission. Please specify the value ranging from 1 to
15. Such parameter will influence the time delay for WMM
accessing categories. For the service of voice or video
image, please set small value for AC_VI and AC_VO
categories For the service of e-mail or web browsing,
please set large value for AC_BE and AC_BK categories.
CWMin means contention Window-Min and CWMax
means contention Window-Max. Please specify the value
ranging from 1 to 15. Be aware that CWMax value must be
greater than CWMin or equals to CWMin value. Both
values will influence the time delay for WMM accessing
categories. The difference between AC_VI and AC_VO
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Vigor1000 Series User's Guide
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