ZyXEL Communications 802.11b/g/n poe access point ユーザーズマニュアル

Chapter 5 Wireless Settings Screen

NWA1100-N User’s Guide

This section provides technical background information about the topics covered in this chapter. 
Refer to 

 for further readings on Wireless LAN.

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 the delivery requirements of the individual and 
applications. 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 NWA uses WMM QoS to prioritize traffic streams according to the IEEE 802.1q or DSCP 
information in each packet’s header. The NWA automatically determines the priority to use for an 
individual traffic stream. This prevents reductions in data transmission for applications that are 
sensitive to latency and jitter (variations in delay).

MCS Table

The MCS Rate table is available only when 802.11 b/g/n is selected in the 802.11 
Wireless Mode field.

IEEE 802.11n supports many different data rates which are called MCS rates. MCS 
stands for Modulation and Coding Scheme. This is an 802.11n feature that increases 
the wireless network performance in terms of throughput. 

For each MCS Rate (0-15), select either Enable (default) to have the NWA use the 
data rate. Select Disable if you do not want the NWA to use the data rate. 

Apply

Click Apply to save your changes.

Cancel

Click Cancel to begin configuring this screen afresh.

Wireless > Wireless Settings: Multi SSID (continued)

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