Cisco Cisco Aironet 1200 Access Point 릴리즈 노트

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6
Upgrading to a New Firmware Release
OL-2588-01
Limitations and Restrictions
Upgrading to a New Firmware Release
Determining the Firmware Version
The firmware version number is in the upper-left corner of most management screens in the web-browser 
interface and at the top of the home (Summary Status) page in the command-line interface.
Upgrade Procedure
For instructions on installing access point firmware:
1.
Follow this link to the Cisco Aironet documentation home page:
http://www.cisco.com/univercd/cc/td/doc/product/wireless/index.htm
2.
Follow this path to the product, document, and chapter:
Aironet 1200 Series Wireless LAN Products > Cisco Aironet 1200 Series Access Points > 
Cisco Aironet 1200 Series Access Point Software Configuration Guide > Managing Firmware 
and Configurations > Updating Firmware
3.
Follow this link to the Software Center on Cisco.com and download firmware version 11.41T:
Note
To upgrade firmware from a file server, you must enter settings on the access point’s FTP Server 
Setup page. Refer to the 
“Updating from a File Server” section on page 6-5
 in the Cisco Aironet 1200 
Series Access Point Software Configuration Guide for more information.
Limitations and Restrictions
This section describes limitations and restrictions for 1200 series access points.
Removing Power During Firmware Update Can Corrupt Radio Firmware
When you update the firmware on an access point, allow the unit to finish its start-up sequence before 
removing power. If you update the firmware and remove power before the unit finishes the start-up 
sequence, the radio firmware might be corrupted, making the unit inoperable. If the radio firmware is 
corrupted, the radio indicator (the bottom of the three indicators on top of the access point) lights steady 
red, and the following error message appears when the access point starts up:
Failed to start driver for port “awc0” (errno=0x006d0002)
If the radio firmware is corrupted, try resetting the unit to factory defaults using the :resetall command 
in the CLI; see the 
“Resetting to the Default Configuration” section on page 9-42
 of the Cisco Aironet 
1200 Series Access Point Software Configuration Guide for instructions on resetting the access point. If 
the unit cannot be reset to defaults, you must return the unit to Cisco for service.
Note
The resetall command is valid for only 2 minutes immediately after the access point reboots.