ZyXEL P-660HW-D1 v2 User Guide - Page 122
WMM QoS
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Chapter 7 Wireless LAN Table 39 MAC Address Filter LABEL DESCRIPTION MAC Address Enter the MAC addresses of the wireless client that are allowed or denied access to the ZyXEL Device in these address fields. Enter the MAC addresses in a valid MAC address format, that is, six hexadecimal character pairs, for example, 12:34:56:78:9a:bc. Apply Click Apply to save your changes to the ZyXEL Device. Cancel Click Cancel to reload the previous configuration for this screen. 7.6 WMM QoS WMM (Wi-Fi MultiMedia) QoS (Quality of Service) allows you to prioritize wireless traffic according to the delivery requirements of individual services. WMM is a part of the IEEE 802.11e QoS enhancement to certified Wi-Fi wireless networks. 7.6.1 WMM QoS Example When WMM QoS is not enabled, all traffic streams are given the same access throughput 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. When WMM QoS is enabled, the streams are prioritized according to the needs of the application. You can assign different priorities to different applications. This prevents reductions in data transmission for applications that are sensitive. 7.6.2 WMM QoS Priorities The following table describes the priorities that you can apply to traffic that the ZyXEL Device sends to the wireless network. Table 40 WMM QoS Priorities PRIORITY LEVELS: Highest High Mid Low Typically used for voice traffic or video that is especially sensitive to jitter (variations in delay). Use the highest priority to reduce latency for improved voice quality. Typically used for video traffic which has some tolerance for jitter but needs to be prioritized over other data traffic. Typically used for traffic from applications or devices that lack QoS capabilities. Use mid priority for traffic that is less sensitive to latency, but is affected by long delays, such as Internet surfing. This is typically used for non-critical "background" traffic such as bulk transfers and print jobs that are allowed but that should not affect other applications and users. Use low priority for applications that do not have strict latency and throughput requirements. 122 P-660HW-Dx v2 User's Guide