Extreme Networks Altitude 4700 Series, Руководство по продукции

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System Configuration
Altitude 4700 Series Access Point Product Reference Guide
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5 Click Apply to save the filename and Server IP information. The Apply button does not execute the
import or export operation, only saves the settings entered.
6 Click Undo Changes (if necessary) to undo any changes made. Undo Changes reverts the settings
displayed on Config Import/Export screen to the last saved configuration.
7 Click Logout to securely exit the Access Point applet. A prompt displays confirming the logout before
the applet is closed.
Updating Device Firmware
Extreme Networks periodically releases updated versions of the access point device firmware to the
Extreme Networks Web site. If the access point firmware version displayed on the
System Settings page
(see “Configuring System Settings” on page 78 ) is older than the version on the Web site, Extreme
Networks recommends updating the access point to the latest firmware version for full feature
functionality.
The Access Point’s automatic update feature updates the Access Point’s firmware and configuration file
automatically when the Access Point is reset or when the Access Point initiates a DHCP request.
The firmware is automatically updated each time firmware versions are found to be different between
what is running on the Access Point and the firmware file located on the server. The configuration file is
automatically updated when the configuration file name on the server is different than the name of the
file previously loaded on the Access Point or when the file version (on the server) is different than the
version currently in use on the Access Point.
Additionally, the configuration version can be manually changed in the text file to cause the
configuration to be applied when required. The parameter name within the configuration file is
“cfg-version-1.1-01.” The Access Point only checks the two characters after the third hyphen (01) when
making a comparison. Change the last two characters to update the Access Point’s configuration. The
two characters can be alpha-numeric.
When downloading to a previous firmware version, all configuration settings are lost and the Access
Point returns to factory default settings of the lower version.
CAUTION
If downgrading firmware from to a lower version, the Access Point automatically reverts to default settings
of the lower version, regardless of whether you are downloading the firmware manually or using the automatic
download feature. The automatic feature allows the user to download the configuration file at the same time, but
since the firmware reverts to the default settings of the lower version, the configuration file is ignored.
For detailed update scenarios involving both a Windows DHCP and a Linux BootP server
configuration, see
“Configuring Automatic Updates using a DHCP or Linux BootP Server” on page 631 .
CAUTION
Loaded and signed CA certificates will be lost when changing the Access Point’s firmware version using
either the GUI or CLI. After a certificate has been successfully loaded, export it to a secure location to ensure its
availability after a firmware update.