Примечания к выпуску для Cisco Cisco Aironet 350 Wireless LAN Client Adapter
6
Release Notes for Cisco Aironet 350 and CB20A Client Adapter Install Wizard 1.5 for Windows
OL-6553-01
New and Changed Information
New and Changed Information
Support for Wi-Fi Multimedia
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. QoS is an access point feature that
enables networking professionals to provide preferential treatment to certain traffic at the expense of other
traffic. Without QoS, the access point offers best-effort service to each packet, regardless of the packet
contents or size. Implementing QoS in a wireless LAN makes network performance more predictable and
bandwidth usage more effective.
service (QoS). It specifically supports priority tagging and queuing. QoS is an access point feature that
enables networking professionals to provide preferential treatment to certain traffic at the expense of other
traffic. Without QoS, the access point offers best-effort service to each packet, regardless of the packet
contents or size. Implementing QoS in a wireless LAN makes network performance more predictable and
bandwidth usage more effective.
Cisco recommends that you enable WMM if your computer is running a time-sensitive application for
QoS-aware clients such as voice or video (for example, Cisco IP SoftPhone).
QoS-aware clients such as voice or video (for example, Cisco IP SoftPhone).
QoS and WMM must be enabled on the access point to which the client will associate. These features
are supported on the access point in Cisco IOS Release 12.3(2)JA or later. Refer to the documentation
for your access point for instructions on enabling these features.
are supported on the access point in Cisco IOS Release 12.3(2)JA or later. Refer to the documentation
for your access point for instructions on enabling these features.
WMM is supported automatically in client adapter firmware 5.60.08, PC/LM/PCI card driver 8.6, and
mini PCI/CB20A card driver 3.9, which are included in Install Wizard 1.5. However, you must enable
the Windows QoS Packet Scheduler to ensure WMM support. Follow the instructions in the Cisco
Aironet 350 and CB20A Wireless LAN Client Adapters Installation and Configuration Guide for
Windows (OL-1394-09) to enable the QoS Packet Scheduler:
mini PCI/CB20A card driver 3.9, which are included in Install Wizard 1.5. However, you must enable
the Windows QoS Packet Scheduler to ensure WMM support. Follow the instructions in the Cisco
Aironet 350 and CB20A Wireless LAN Client Adapters Installation and Configuration Guide for
Windows (OL-1394-09) to enable the QoS Packet Scheduler:
Note
The QoS Packet Scheduler must be installed before you can enable it. It comes preinstalled on Windows
XP; however, you must install it on Windows 2000.
XP; however, you must install it on Windows 2000.
Installing or Upgrading Client Adapter Software
Follow these steps to use Install Wizard 1.5 to install or upgrade client adapter software on a computer
running Windows 2000 or XP.
running Windows 2000 or XP.
Note
Install Wizard 1.5 and its software components are not supported for use with Windows 95, 98, 98 SE,
NT, and Me.
NT, and Me.
Note
You do not need to uninstall any previous versions of Cisco Aironet client adapter software (firmware,
drivers, or utilities) or previous versions of the Install Wizard prior to installing Install Wizard 1.5.
drivers, or utilities) or previous versions of the Install Wizard prior to installing Install Wizard 1.5.