Wi-Fi Multimedia Configuration

Wi-Fi™ Multimedia (WMM) is a quality of service enhancement that allows you to enhance the performance of your wireless network by adjusting the transmission priorities of audio, video, and voice applications to accommodate the different latency and throughput requirements of each application. By default, WMM is disabled.

WMM is based on Enhanced Distributed Channel Access (EDCA), as defined in 802.11e. For more information about WMM, see http://www.wi-fi.org.

You configure WMM to operate from each end of the connection: access point (ap) and station (sta).

Access Categories

Based on Internet Engineering Task Force (IETF) Differentiated Services Code Point (DSCP) headers, the security device and client sort traffic into one of four access categories (AC):

The following table lists the mappings between access categories and Type of Service (TOS).

Access Category

TOS Value

Voice

0xC0, 0xB8, 0xE0

Video

0x80, 0xA0, 0x88

Best effort

0x00, 0x60, or other

Background

0x40, 0x20

Note:  802.1d tags are not supported.

WMM Default Settings

The following terms describe the configurable WMM parameters used for access point (security device) and station (client) configuration:

Note: ScreenOS does not support contention-free or scheduled access.

Configuring WMM

You can enable WMM on the 2.4 GHz (WLAN0) and/or 5GHz (WLAN1) transceivers. You configure WMM to operate from each end of the connection: access point (ap) and station (sta).

  1. Click Enable to enable WMM.

  2. Enter values for the parameters for the access categories.

  1. Click Apply to save changes to the wireless configuration, and then click Activate Changes to update the wireless configuration.

Note: When you click Activate Changes, the security device ends all wireless sessions abruptly. Wireless users must reconnect to continue service.