WESM zl Management and Configuration Guide WT.01.28 and greater

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Introduction
ProCurve Wireless Edge Services zl Module
WMM
WMM is a more comprehensive QoS solution because it can provide differentiated
handling for any type of traffic based on its priority. Like 802.1p and Differentiated
Services (DiffServ) in Ethernet networks, WMM divides traffic into multiple priority
queues and then assigns different settings to each queue. Although the types of
settings dictated by the protocols are of course different (as the shared wireless
medium is different from the switched Ethernet medium), the goal is the same: higher
throughput for high priority traffic, as well as lower latency for time-sensitive traffic.
The Wireless Edge Services zl Module can implement WMM on both downstream
and upstream wireless traffic. To implement WMM on downstream wireless traffic,
the module sends settings for priority queues as part of a radio’s configuration. To
implement WMM on upstream wireless traffic, the module configures RPs to send
priority queue settings to wireless stations in a particular WLAN.
You must enable WMM on a WLAN if you want RPs to prioritize downstream traffic
according to priority value. Enabling WMM also allows WMM-capable wireless
stations to prioritize upstream wireless traffic. By default, devices prioritize traffic
according to 802.1p priority. However, you can configure them to use DiffServ values
instead.
Figure 1-17 illustrates how the Wireless Edge Services zl Module can configure RPs
and wireless stations to prioritize mission-critical and VoWLAN traffic.
Figure 1-17. Enabling WMM on a WLAN
For more instruction on configuring these settings, see Chapter 4: “Wireless Local
Area Networks (WLANs)” and Chapter 3: “Radio Port Configuration.”