ZyXEL NBG334W User Guide - Page 75

General Wireless LAN Screen

Page 75 highlights

Chapter 5 Wireless LAN 5.4.1 WMM QoS WMM (Wi-Fi MultiMedia) QoS (Quality of Service) ensures quality of service in wireless networks. It controls WLAN transmission priority on packets to be transmitted over the wireless network. WMM QoS prioritizes wireless traffic according to delivery requirements. WMM QoS is a part of the IEEE 802.11e QoS enhancement to certified Wi-Fi wireless networks. On APs without WMM QoS, all traffic streams are given the same access priority to the wireless network. If the introduction of another traffic stream creates a data transmission demand that exceeds the current network capacity, then the new traffic stream reduces the throughput of the other traffic streams. The NBG334W uses WMM QoS to prioritize traffic streams according to the IEEE 802.1q tag or DSCP information in each packet's header. The NBG334W automatically determines the priority to use for an individual traffic stream. This prevents reductions in data transmission for applications that are sensitive to latency (delay) and jitter (variations in delay). 5.4.1.1 WMM QoS Priorities The following table describes the WMM QoS priority levels that the NBG334W uses. Table 26 WMM QoS Priorities PRIORITY LEVEL DESCRIPTION voice (WMM_VOICE) Typically used for traffic that is especially sensitive to jitter. Use this priority to reduce latency for improved voice quality. video (WMM_VIDEO) Typically used for traffic which has some tolerance for jitter but needs to be prioritized over other data traffic. best effort Typically used for traffic from applications or devices that lack QoS (WMM_BEST_EFFORT) capabilities. Use best effort priority for traffic that is less sensitive to latency, but is affected by long delays, such as Internet surfing. background (WMM_BACKGROUND) This is typically used for non-critical traffic such as bulk transfers and print jobs that are allowed but that should not affect other applications and users. Use background priority for applications that do not have strict latency and throughput requirements. 5.5 General Wireless LAN Screen " If you are configuring the NBG334W from a computer connected to the wireless LAN and you change the NBG334W's SSID, channel or security settings, you will lose your wireless connection when you press Apply to confirm. You must then change the wireless settings of your computer to match the NBG334W's new settings. Click Network > Wireless LAN to open the General screen. NBG334W User's Guide 75

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Chapter 5 Wireless LAN
NBG334W User’s Guide
75
5.4.1
WMM QoS
WMM (Wi-Fi MultiMedia) QoS (Quality of Service) ensures quality of service in wireless
networks. It controls WLAN transmission priority on packets to be transmitted over the
wireless network.
WMM QoS prioritizes wireless traffic according to delivery requirements. WMM QoS is a
part of the IEEE 802.11e QoS enhancement to certified Wi-Fi wireless networks.
On APs without WMM QoS, all traffic streams are given the same access priority to the
wireless network. If the introduction of another traffic stream creates a data transmission
demand that exceeds the current network capacity, then the new traffic stream reduces the
throughput of the other traffic streams.
The NBG334W uses WMM QoS to prioritize traffic streams according to the IEEE 802.1q tag
or DSCP information in each packet’s header. The NBG334W automatically determines the
priority to use for an individual traffic stream. This prevents reductions in data transmission
for applications that are sensitive to latency (delay) and jitter (variations in delay).
5.4.1.1
WMM QoS Priorities
The following table describes the WMM QoS priority levels that the NBG334W uses.
5.5
General Wireless LAN Screen
If you are configuring the NBG334W from a computer connected to the
wireless LAN and you change the NBG334W’s SSID, channel or security
settings, you will lose your wireless connection when you press
Apply
to
confirm. You must then change the wireless settings of your computer to
match the NBG334W’s new settings.
Click
Network
>
Wireless LAN
to open the
General
screen.
Table 26
WMM QoS Priorities
PRIORITY LEVEL
DESCRIPTION
voice
(WMM_VOICE)
Typically used for traffic that is especially sensitive to jitter. Use this priority
to reduce latency for improved voice quality.
video
(WMM_VIDEO)
Typically used for traffic which has some tolerance for jitter but needs to be
prioritized over other data traffic.
best effort
(WMM_BEST_EFFORT)
Typically used for traffic from applications or devices that lack QoS
capabilities. Use best effort priority for traffic that is less sensitive to latency,
but is affected by long delays, such as Internet surfing.
background
(WMM_BACKGROUND)
This is typically used for non-critical traffic such as bulk transfers and print
jobs that are allowed but that should not affect other applications and users.
Use background priority for applications that do not have strict latency and
throughput requirements.