Примечания к выпуску для Cisco Cisco Aironet 350 Wireless LAN Client Adapter
4
Release Notes for Cisco Aironet Mini PCI Client Adapter Firmware, Version 5.00.03
OL-2530-01
New and Changed Information
Step 10
Find the location of the new firmware in the Open Window’s Look in box. The default location is
InstallPath\Firmware, where InstallPath is the directory that ACU was installed in.
InstallPath\Firmware, where InstallPath is the directory that ACU was installed in.
Step 11
Click the firmware image file (*.img) so that it appears in the File name box at the bottom of the Open
window.
window.
Step 12
Click the Open button. A progress bar displays while the selected image is loaded into the mini PCI card’s
Flash memory.
Flash memory.
Step 13
Click OK when the “Firmware Upgrade Complete!” message appears. The OK button cannot be selected
until the process is complete or an error occurs.
until the process is complete or an error occurs.
New and Changed Information
This section describes new and changed information for release 5.00.03 of the Cisco Aironet mini PCI
card firmware.
card firmware.
Ability to Periodically Scan for a Better Access Point Added to ACU
Firmware release 5.00.03 enables the client to look for a better access point if its signal strength becomes
low and to switch associations if it finds one. This feature is selectable in ACU through the Periodically
Scan For A Better Access Point parameter on the RF Network screen.
low and to switch associations if it finds one. This feature is selectable in ACU through the Periodically
Scan For A Better Access Point parameter on the RF Network screen.
Note
This parameter is available only if your client adapter is using ACU version 5.02.005 or greater.
Ability to Select Clear Channel Assessment (CCA)
Firmware release 5.00.03 provides the ability to determine whether the channel on which your client
adapter will operate is clear prior to the transmission of data. This feature is selectable in ACU through
the Clear Channel Assessment parameter on the RF Network screen. The following methods are
available from the parameter’s drop-down list in ACU:
adapter will operate is clear prior to the transmission of data. This feature is selectable in ACU through
the Clear Channel Assessment parameter on the RF Network screen. The following methods are
available from the parameter’s drop-down list in ACU:
•
Firmware Default (XXX) - The CCA mechanism reports that the channel is busy based on the
default value of the client adapter’s firmware. The firmware’s CCA default value is shown in
parentheses. For example, the CCA default value for PCM/LMC/PCI card firmware is Car/Cor, and
the default value for mini PCI card firmware is ED.
default value of the client adapter’s firmware. The firmware’s CCA default value is shown in
parentheses. For example, the CCA default value for PCM/LMC/PCI card firmware is Car/Cor, and
the default value for mini PCI card firmware is ED.
•
Carrier/Correlation (Car/Cor) - The CCA mechanism reports that the channel is busy upon
detection of a direct-sequence spread spectrum (DSSS) signal. This signal may be above or below
the ED threshold.
detection of a direct-sequence spread spectrum (DSSS) signal. This signal may be above or below
the ED threshold.
•
Energy Detect (ED) - The CCA mechanism reports that the channel is busy upon detection of any
energy above the ED threshold.
energy above the ED threshold.
•
ED or Car/Cor - The CCA mechanism reports that the channel is busy upon detection of a DSSS
signal or any energy above the ED threshold.
signal or any energy above the ED threshold.
Note
This parameter is available only if your client adapter is using ACU version 5.02.005 or greater.