Brocade Mobility Access Point System Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 452)

442 Brocade Mobility Access Point System Reference Guide
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3. Configure the following Settings in respect to the WLAN’s intended WMM radio traffic and user
requirements:
4. Set the following Video Access settings for the WLAN’s QoS policy:
Wireless Client
Classification Use the drop-down menu to select the Wireless Client Classification for this WLAN's intended traffic.
The Classification Categories are the different WLAN-WMM options available to the radio. The
Wireless Client Classification types are:
•
WMM – Implies WiFi Multimedia QoS extensions are enabled on this radio. This allows
different traffic streams between the wireless client and the access point to be prioritized
according to the type of traffic (voice, video etc). The WMM classification is required to support
the high throughput data rates required of 802.11n device support.
•
Voice – Optimized for voice traffic. Implies all traffic on this WLAN is prioritized as voice traffic
on the radio.
•
Video – Optimized for video traffic. Implies all traffic on this WLAN is prioritized as video traffic
on the radio.
•
Normal – Optimized for best effort traffic. Implies all traffic on this WLAN is prioritized as best
effort traffic on the radio.
•
Low – Optimized for background traffic. Implies all traffic on this WLAN is low priority on the
radio.
Non-Unicast
Classification Use this drop-down menu to define how traffic matching multicast masks is classified relative to
prioritization on the radio. Options include Video, Voice, Normal, Low and Default. The default
setting is Default.
Enable Voice Prioritization Select this option if Voice traffic is prioritized on the WLAN. This gives priority to voice and voice
management packets and is supported only on certain legacy Brocade VOIP phones. This feature is
disabled by default.
Enable SVP Prioritization Enabling Spectralink Voice Prioritization (SVP) allows the access point to identify and prioritize
traffic from Spectralink/Polycomm phones. This gives priority to voice, with voice management
packets supported only on certain legacy Motorola VOIP phones. If the Wireless Client Classification
is WMM, non-WMM devices recognized as voice devices have all their traffic transmitted at voice
priority. Devices are classified as voice, when they emit SIP, SCCP or H323 traffic. Thus, selecting
this option has no effect on devices supporting WMM. This feature is disabled by default.
Enable WMM Power Save Enables support for the WMM based power-save mechanism, also known as Unscheduled
Automatic Power Save Delivery (U-APSD). This is primarily used by WMM capable voice devices. This
feature is enabled by default.
Enable QBSS Load IE Select this option to enable support for WMM QBSS load information element in beacons and probe
response packets. This feature is enabled by default.
Configure Non WMM
Client Traffic Use the drop-down menu to specify how non-WMM client traffic is classified on this access point
WLAN if the Wireless Client Classification is set to WMM. Options include Video, Voice, Normal and
Low. The default setting is Normal.
Transmit Ops Use the slider to set the maximum duration a device can transmit after obtaining a transmit
opportunity. The default value is 94.
AIFSN Set the current Arbitrary Inter-frame Space Number (AIFSN) from 2 - 15. Higher-priority video
categories should have lower AIFSNs than lower-priority traffic categories. This will cause
lower-priority traffic to wait longer before attempting access. The default value is 2.
ECW Min ECW Min is combined with ECW Max to create the contention value in the form of a numerical
range. From this range, a random number is selected for the back off mechanism. Lower values are
used for higher priority traffic (like video). The available range is from 0-15. The default value is 3.
ECW Max TECW Max is combined with ECW Min to create the contention value in the form of a numerical
range. From this range, a random number is selected for the back off mechanism. Lower values are
used for higher priority traffic (like video). The available range is from 0-15. The default value is 4.