Cisco Cisco Aironet 350 Mini-PCI Wireless LAN Client Adapter Guia Do Desenho

 switchport trunk encapsulation dot1q

 switchport trunk allowed vlan 11-13,60,61

 switchport mode trunk

 mls qos trust cos

end

Traffic shaping and over-the-air QoS are useful tools in the absence of WLAN WMM features, but they 
do not address the prioritization of 802.11 traffic directly. For WLANs that support WMM clients or 
7920 handsets, the WLAN QoS mechanisms of these clients should be relied on; no traffic shaping or 
over-the-air QoS should be applied to these WLANs.

The Cisco 7921G and the Cisco 7920 are Cisco VoWLAN handsets. Their use is one of the most common 
reasons for deploying QoS on a WLAN.

For more information on each of these handsets, see the following: 

Cisco Unified Wireless IP Phone 7921G Version 1.0(2)— 

Cisco Unified Wireless IP Phone 7920 Version 3.0— 

Deploying VoWLAN infrastructure involves more than simply providing QoS on WLAN. A voice 
WLAN needs to consider site survey coverage requirements, user behavior, roaming requirements, and 
admission control. These are covered in the following guides:

Design Principles for Voice Over WLAN— 

Cisco Wireless IP Phone 7920 Design and Deployment Guide— 

This section describes QoS strategies when LWAPP APs are deployed across WAN links, as illustrated 
in 

.