D-Link DWC-1000 User Manual page 88

Wireless Controller
WMM Mode: Wi-Fi MultiMedia (WMM) is enabled by default. With WMM
enabled, QoS prioritization and coordination of wireless medium access is on.
With WMM enabled, QoS settings on the DWC-1000 wireless controller
control downstream traffic flowing from the access point to client station (AP
EDCA parameters) and the upstream traffic flowing from the station to the
access point (station EDCA parameters). Disabling WMM deactivates QoS
control of station EDCA parameters on upstream traffic flowing from the
station to the access point With WMM disabled, you can still set some
parameters on the downstream traffic flowing from the access point to the
client station (AP EDCA parameters).
Station EDCA Parameters
Queue: Queues are defined for different types of data transmitted from
station-to-AP:
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AIFS (Inter-Frame Space): The Arbitration Inter-Frame Spacing (AIFS)
specifies a wait time for data frames. The wait time is measured in slots.
Valid values for AIFS are 1 through 255.
cwMin (Minimum Contention Window): This parameter is used by the
algorithm that determines the initial random backoff wait time (window) for
data transmission during a period of contention for The value specified in the
Minimum Contention Window is the upper limit (in milliseconds) of a range
from which the initial random backoff wait time is determined. The first
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To disable WMM extensions, click Disabled.
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To enable WMM extensions, click Enabled
Data 0 (Voice): High priority queue, minimum delay. Time -sensitive
data such as VoIP and streaming media are automatically sent to this
queue.
Data 1 (Video): High priority queue, minimum delay. Time -sensitive
video data is automatically sent to this queue.
Data 2 (best effort): Medium priority queue, medium throughput and
delay. Most traditional IP data is sent to this queue.
Data 3 (Background): Lowest priority queue, high throughput. Bulk
data that requires maximum throughput and is not time -sensitive is sent
to this queue (FTP data, for example).
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User Manual