Technical Reference; Wmm Qos - ZyXEL Communications nwa1100-n User Manual

Table 9 Multi SSID: Edit (continued)
LABEL
QoS
Number of Wireless
Stations Allowed to
Associate
Hidden SSID
Enable Intra-BSS
Traffic blocking
Enable Traffic Shaping
Incoming Traffic Limit
Outgoing Traffic Limit:
Save
Reset
Back

6.3 Technical Reference

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

6.3.1 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 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
NWA1100-N User's Guide
DESCRIPTION
Select the Quality of Service priority for this BSS's traffic.
• If you select WMM from the QoS list, the priority of a data packet depends on the
packet's IEEE 802.1q or DSCP header. If a packet has no WMM value assigned to
it, it is assigned the default priority.
• If you select WMM_VOICE, WMM_VIDEO, WMM_BEST_EFFORT or
WMM_BACKGROUND, the NWA applies that QoS setting to all of that SSID's
traffic.
• If you select None, the NWA applies no priority to traffic on this SSID.
Note: When you configure an SSID profile's QoS settings, the NWA applies the same
QoS setting to all of the profile's traffic.
Use this field to set a maximum number of wireless stations that may connect to the
device.
If you do not select the checkbox, the NWA to broadcast this SSID (a wireless client
scanning for an AP will find this SSID). Alternatively, if you select the checkbox, the
NWA hide this SSID (a wireless client scanning for an AP will not find this SSID).
Select the checkbox to prevent wireless clients in this profile's BSS from
communicating with one another.
Bursty traffic may cause network congestion. Traffic shaping regulates packets to be
transmitted with a pre-configured data transmission rate using buffers (or queues).
Specify the maximum transmission rate (in kbps) allowed for incoming traffic.
Specify the maximum transmission rate (in kbps) allowed for outgoing traffic.
Click Save to save your changes.
Click Reset to begin configuring this screen afresh.
Click Back to return to the previous screen.
Chapter 6 Multi SSID Screen
69