User manual

SSID and VLAN configuration
63 Wavion
QoS Packets Priority
Wireless Multimedia Extensions (WME), also known as WiFi MultiMedia (WMM), provides basic
Quality of service (QoS) features to IEEE 802.11 networks. WMM prioritizes traffic according to
four Access Categories (AC):
• Voice
• Video
• Best Effort
• Background
The four access categories and the implementation defined by WMM standard provide traffic
prioritization. It is suitable for applications that require QoS over WiFi, such as Voice over IP
(VoIP)
In order to allow QoS through the WBS-2400, both ends of the network (CPE on the wireless
side and the switch/router on the Ethernet side) should support priority tagging. This permits
the marking of a specific packet with a specific priority.
Downlink, a packet from the wire-line network is received at the WBS. Its priority is detected
(base on the table below) and it will be prioritized over the air according to WMM AC
prioritization. When the packet reaches the CPE, the CPE passes it to its LAN interface
according to its definition.
Uplink, the CPE will detect the priority (as defined at the CPE) and will pass the frame with the
correct WMM AC characteristics, thus providing the priority classification on the wireless side,.