D-Link Unified Access System DWS-3000 Series User Manual page 158

D-Link Unified Access System User Manual
Table 55. QoS Settings
Field
Max. Burst Length
WMM Mode
Queue
AIFS
(Inter-Frame Space)
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Description
AP EDCA Parameter Only (The Max. Burst Length applies only to
traffic flowing from the access point to the client station.)
This value specifies (in milliseconds) the Maximum Burst Length
allowed for packet bursts on the wireless network. A packet burst is a
collection of multiple frames transmitted without header information.
The decreased overhead results in higher throughput and better
performance.
Valid values for maximum burst length are 0.0 through 999.9..
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 D-Link Unified Access
System 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).
To disable WMM extensions, click Disabled.
To enable WMM extensions, click Enabled.
Queues are defined for different types of data transmitted from station-
to-AP:
Data 0 (Voice)
Highest priority queue, minimum delay. Time-sensitive data such as
VoIP and streaming media are automatically sent to this queue.
Data 1(Video)
Highest 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).
The Arbitration Inter-Frame Spacing (AIFS) specifies a wait time (in
milliseconds) for data frames.