Rockwell Automation 1783-WAPxxx Stratix 5100 Wireless Access Point User Manual - Manual (Page 153)

Rockwell Automation Publication 1783-UM006A-EN-P - May 2014 153
Stratix 5100 Device Manager Parameter Definitions Chapter 4
Table 55 - QoS Policies Advanced Page Parameter Description
Parameter Description
IP Phone
QoS Element for Wireless Phones If you enable this feature, dynamic voice classifiers are created for some of the
wireless phone vendor clients, that gives top priority to all voice packets.
Additionally, the QoS Basic Service Set (QBSS) is enabled to advertise channel
load information in the beacon and probe response frames. Some IP phones use
the QBSS elements to determine the access point to associate to, based on the
traffic load.
Note: This release continues to support existing 7920 wireless phone firmware.
Do not attempt to use the new standard QBSS IE until the 7920 wireless phone
firmware release is available for you to upgrade your phones.
Dot11e Click Dot11e to use the latest version of QBSS Load IE. If you do not click Dot11e,
the previous QBSS Load IE version is used.
IGMP Snooping
Snooping Helper When Internet Group Membership Protocol (IGMP) snooping is enabled on a
switch and a client roams from one access point to another, the client's multicast
session is dropped. When the access point's IGMP snooping helper is enabled, the
access point sends a general IGMP query to the network infrastructure on behalf
of the client every time the client associates or reassociates to the access point. By
doing so, the multicast stream is maintained for the client as it roams.
The Snooping Helper is enabled by default. To disable, click the Disable selection
and click Apply.
AVVID Priority Mapping Map Ethernet Packets with CoS 5 to CoS 6
If your network is based upon Cisco AVVID specification, click Yes. This mapping
prioritizes voice packets that include priority 5 (video).
WiFi MultiMedia (WMM) Enable on Radio Interfaces
Wi-Fi Multimedia (WMM) is a component of the IEEE 802.11e wireless LAN
standard for quality of service (QoS). It specifically supports priority tagging and
queuing.
When you enable QoS, the access point uses WMM mode by default. Uncheck the
Enable on Radio Interfaces check box to disable WMM for a particular radio
interface.