WESM zl Management and Configuration Guide WT.01.28 and greater

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Wireless Local Area Networks (WLANs)

Traffic Management (QoS)

Contemporary users demand more from wireless connections—more bandwidth and

more multimedia applications—but they also demand less jitter and fewer dropped

calls.

The ProCurve Wireless Edge Services zl Module helps RPs to deliver a high QoS

for voice, video, and other high-priority or time-sensitive traffic.

The Wireless Edge Services zl Module and adopted RPs support protocols designed

to improve QoS over the radio medium:

■ SpectraLink Voice Priority (SVP)

■ Wireless Multimedia (WMM)

In addition, the Wireless Edge Services zl Module can use voice prioritization to

mark traffic destined to VoWLAN devices for priority handling in both the Ethernet

and wireless network.

Using WLAN prioritization and weighted fair queuing (WFQ), the Wireless Edge

Services zl Module queues traffic outbound to RPs according to the WLAN to which

it is destined. The module allocates relatively more bandwidth to the queues for

WLANs with a higher priority.

Figure 4-52 displays where these various QoS mechanisms affect traffic.