Cisco Cisco 2106 Wireless LAN Controller Notas de publicación
7
Release Notes for Cisco Wireless LAN Controllers and Lightweight Access Points for Release 5.1.163.0
OL-31336-01
Software Release Information
•
Cisco requires you to install the Cisco Unified Wireless Network Controller Boot Software
4.2.112.0 ER.aes file on the following controllers: 4400 series, Cisco WiSM, and Catalyst 3750G
Wireless LAN Controller Switch. It is optional on other controller platforms. This file resolves
CSCso00774 and is necessary to ensure proper operation of the controller. If you do not install this
ER.aes file, your controller does not obtain the fix for this defect, and “Error” appears in the
Bootloader Version field in the output of the show sysinfo command.
4.2.112.0 ER.aes file on the following controllers: 4400 series, Cisco WiSM, and Catalyst 3750G
Wireless LAN Controller Switch. It is optional on other controller platforms. This file resolves
CSCso00774 and is necessary to ensure proper operation of the controller. If you do not install this
ER.aes file, your controller does not obtain the fix for this defect, and “Error” appears in the
Bootloader Version field in the output of the show sysinfo command.
Note
When you install the 4.2.112.0 ER.aes file, a new bootloader file is also loaded. This is true
for all controllers except the 2106 controller, for which the bootloader is not upgradable.
for all controllers except the 2106 controller, for which the bootloader is not upgradable.
Note
The ER .aes files are independent from the controller software files. You can run any
controller software file with any ER.aes file. However, installing the latest boot software file
(4.2.112.0 ER.aes) ensures that the boot software modifications in all of the previous and
current boot software ER.aes files are installed.
controller software file with any ER.aes file. However, installing the latest boot software file
(4.2.112.0 ER.aes) ensures that the boot software modifications in all of the previous and
current boot software ER.aes files are installed.
Note
The 4.2.112.0 ER.aes file was released after the 5.0.148.0 ER.aes file, so the 4.2.112.0
ER.aes file is the latest boot software file and as such contains the CSCsd52483 fix included
in the 5.0.148.0 ER.aes file.
ER.aes file is the latest boot software file and as such contains the CSCsd52483 fix included
in the 5.0.148.0 ER.aes file.
Caution
If you require a downgrade from one release to another, you may lose the configuration from your
current release. The workaround is to reload the previous controller configuration files saved on the
backup server or to reconfigure the controller.
current release. The workaround is to reload the previous controller configuration files saved on the
backup server or to reconfigure the controller.
Follow these steps to upgrade the controller software using the controller GUI.
Note
Do not install the 5.1.163.0 controller software file and the 4.2.112.0 ER.aes boot software file at the
same time. Install one file and reboot the controller; then install the other file and reboot the controller.
same time. Install one file and reboot the controller; then install the other file and reboot the controller.
Step 1
Upload your controller configuration files to a server to back them up.
Note
Cisco highly recommends that you back up your controller’s configuration files prior to
upgrading the controller software. Otherwise, you must manually reconfigure the controller.
upgrading the controller software. Otherwise, you must manually reconfigure the controller.
Step 2
Follow these steps to obtain the 5.1.163.0 controller software and the Cisco Unified Wireless Network
Controller Boot Software 4.2.112.0 ER.aes file from the Software Center on Cisco.com:
Controller Boot Software 4.2.112.0 ER.aes file from the Software Center on Cisco.com:
a.
Click this URL to go to the Software Center:
b.
Click Wireless Software.
c.
Click Wireless LAN Controllers.
d.
Click Standalone Controllers or Integrated Controllers and Controller Modules.
e.
Click a controller series.