Netgear WMS5316-Wireless Reference Manual - Page 21

ProSafe 16 AP Wireless Management System WMS5316 Table 1. Advanced Wireless Settings (continued) Feature Setting RIFS Transmission (11n Enable the Reduced Interframe Space (RIFS) option to allow transmission of only) successive frames at different transmit powers. Enabling RIFS can lead to better network performance. Enable Wi-Fi MultiMedia Select this check box to ensure that applications that require better throughput and (WMM) performance are provided special queues with higher priority. For more information about WMM, see QoS for Managed Access Points on page 22. DTIM Interval (1-255) Enter the DTIM or the data beacon rate that you want to use. This sets the message period of the beacon delivery traffic indication in multiples of beacon intervals. Preamble Type (11b/bg only) A long transmit preamble can provide a more reliable connection or a slightly longer range. A short transmit preamble gives better performance. The Auto setting automatically handles both long and short preambles. The default is Auto. Access Point Channel Each managed access point's channel and frequency can be individually selected. The access point mode is set either to the one enabled for the group, or if the selected mode is not available on the access point, to the mode providing highest performance. Configuring QoS You can use QoS to enable WMM for both upstream traffic from the station to the access point and downstream traffic from the access point to the client station.You can use basic QoS settings for access points or advanced QoS settings for access point groups. These settings are applied only to NETGEAR ProSafe access points that support QoS. WMM defines the following four queues in decreasing order of priority: • Voice: The highest-priority queue with minimum delay, which makes it ideal for applications like VOIP and streaming media. • Video: The second-highest priority with low delay is given to this queue. Video applications are routed to this queue. • Best Effort: The medium priority with medium delay is given to this queue. Most standard IP applications use this queue. • Background: Low-priority queue with high throughput. Applications, such as FTP, that are not time-sensitive but require high throughput can use this queue. With WMM enabled, QoS prioritizes and coordinates wireless access. QoS settings on the access point control downstream traffic to client stations (AP EDCA parameters) and the upstream traffic from the station to the access point (station EDCA parameters). Disabling WMM deactivates QoS control of station EDCA parameters on upstream traffic flowing from the station to the access point. With WMM disabled, you can still set some parameters on the downstream traffic from the access point to the client stations (AP EDCA parameters). Wireless Configuration 21