QoS Element for Wireless Phones
If you enable this feature, dynamic voice classifiers
are created for some of the wireless phone vendor clients, which
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 which 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.
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.
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).
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.
See Also: Services:
QoS Policies, Services:
QoS Policies - Access Category Definition
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