ALFA NETWORK R36 - Manual (Page 36)

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W I -F I M ULTIMEDIA
The 3G Mobile Wireless Router implements Quality of Service (QoS) using the Wi-Fi
Multimedia (WMM) standard. Using WMM, the access point is able to prioritize traffic
and optimize performance when multiple applications compete for wireless network
bandwidth at the same time. WMM employs techniques that are a subset of the
developing IEEE 802.11e QoS standard and it enables access points to interoperate
with both WMM-enabled clients and other devices that may lack any WMM
functionality. WMM defines four access categories (ACs): voice, video, best effort,
and background. These categories correspond to traffic priority levels and are
mapped to IEEE 802.1D priority tags. The direct mapping ofthe four ACs to 802.1D
priorities is specifically intended to facilitatebinteroperability with other wired
network QoS policies. While the four ACs are specified for specific types of traffic,
WMM allows the priority levels to be configured to match any network-wide QoS
policy. WMM also specifies a protocol that access points can use to communicate the
configured traffic priority levels to QoS-enabled wireless clients.
The Wi-Fi Multimedia section on the Wireless Settings Advanced page allows you to
enable WMM and set detailed QoS parameters.
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WMM — Sets the WMM operational mode on the access point. When enabled, the
QoS capabilities are advertised to WMM-enabled clients in the network. WMM must
be supported on any device trying to associate with the access point. Devices that
do not support this feature will not be allowed to associate with the access point.
(Default: Enabled)