Wireless/Redundant Edge Services xl Module Management and Configuration Guide WS.01.03 or greater

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Wireless Local Area Networks (WLANs)
Traffic Management (QoS)
Figure 3-47. Station WMM Settings
Figure 3-47 shows the default settings for WMM queues. As you can see, each
WLAN has its own four queues. This is because RPs broadcast one set of
station parameters to all stations in a WLAN. They can broadcast another set
of station parameters to all stations in another WLAN (if that WLAN uses
WMM).
The first column (Idx) lists the WLAN and the queue number. For example, the
first row displays the settings for queue 1 on WLAN 1. To see the type of traffic
for this queue, look at the sixth column (Access). For example, queue 1 is the
Background queue.
The second and the third columns further identify the WLAN in question with
an SSID and description.
A green check in the fourth column (WLAN Enabled) indicates that RPs in your
network currently support this WLAN; a check in the fifth column (WMM
Enabled) indicates that RPs are allowed to send the WMM parameters to
stations. In Figure 3-47, MyWLAN and Guest are the active WLANs in the
wireless network. Only MyWLAN implements WMM prioritization on
upstream traffic.
The final four columns list the station WMM parameters for the queue in this
row. The default settings grant lower latency for the queues with higher
numbers.
Typically, no further configuration is necessary. You only need know that by
accepting these settings from the RPs, wireless stations can improve QoS for
traffic that has been marked for a higher QoS.
For example, if a wireless station is transmitting a voice frame, the station will
compete for the radio using the advantageous settings that the RP has speci-
fied for such frames. (Note that in order for the prioritization to take effect,
the traffic must be marked by the application on the wireless station and the
station must support WMM.)
Customizing Station WMM Parameters
If you have a great deal of experience working with WMM and other QoS
protocols, you can customize the queue settings to the needs of your
environment.