Extreme Networks Altitude 4700 Series Product Reference Manual page 158

Network Management
4 Select the Support Voice prioritization checkbox to allow legacy voice prioritization.
Certain products may not receive priority over other voice or data traffic. Consequently, ensure the
Support Voice Prioritization checkbox is selected if using products that do not support Wi-Fi
Multimedia (WMM) to provide preferred queuing for these VOIP products.
If the Support Voice Prioritization checkbox is selected, the Access Point will detect non-WMM capable
(legacy) phones that connect to the Access Point and provide priority queueing for their traffic over
normal data.
NOTE
Wi-fi functionality requires both the Access Point and its associated clients are WMM-capable and have
WMM enabled. WMM enabled devices can take advantage of their QoS functionality only if using applications
that support WMM, and can assign an appropriate priority level to the traffic streams they generate.
5 Use the two Multicast Address fields to specify one or two MAC addresses used for multicast
applications. Some VoIP devices make use of multicast addresses. Using this mechanism ensures
multicast packets for these devices are not delayed by the packet queue. Only the first four bytes are
used.
6 Use the drop-down menu to select the radio traffic best representing the network requirements of
this WLAN. Options include:
manual
11ag - wifi
11b - wifi
11ag - default
11b - default
11ag voice
11b voice
CAUTION
Extreme Networks recommends using the drop-down menu to define the intended radio traffic within the
WLAN. Once an option is selected, you do not need to adjust the values for the Access Categories, unless
qualified to do so. Changing the Access Category default values could negatively impact the performance of the
Access Point.
7 Select the Enable Wi-Fi Multimedia (WMM) QoS Extensions checkbox to configure the access point's
QoS Access Categories. The Access Categories are not configurable unless the checkbox is selected.
Access Categories include:
158
Select the manual option if intending to manually set the
Access Categories for the radio traffic within this WLAN.
Only advanced users should manually configure the
Access Categories, as setting them inappropriately could
negatively impact the Access Point's performance.
Use this setting for high-end multimedia devices that using
the high rate 802.11a or 802.11g radio.
Use this setting for high-end devices multimedia devices
that use the 802.11b radio.
Use this setting for typical "data-centric" MU traffic over the
high rate 802.11a or 802.11g radio.
Use this setting for typical "data-centric" MU traffic over the
802.11b radio.
Use this setting for "Voice-Over-IP" traffic over the high
rate 802.11a or 802.11g radio.
Use this setting for "Voice-Over-IP" traffic over the 802.11b
radio.
Altitude 4700 Series Access Point Product Reference Guide