Cisco Cisco 2106 Wireless LAN Controller Release Notes
16
Release Notes for Cisco Wireless LAN Controllers and Lightweight Access Points for Release 6.0.202.0
OL-31336-01
Upgrading to a New Software Release
access point upgrades supported in software release 4.0.206.0 and later releases, the upgrade time should
be significantly reduced. The access points must remain powered, and the controller must not be reset
during this time.
be significantly reduced. The access points must remain powered, and the controller must not be reset
during this time.
Note
In controller software release 5.2 or later releases, the WLAN override feature has been removed from
both the controller GUI and CLI. If your controller is configured for WLAN override and you upgrade
to controller software release 6.0.202.0, the controller deletes the WLAN configuration and broadcasts
all WLANs. You can specify that only certain WLANs be transmitted by configuring access point
groups. Each access point advertises only the enabled WLANs that belong to its access point group.
Access point groups do not enable WLANs to be transmitted on per radio interface of AP.
both the controller GUI and CLI. If your controller is configured for WLAN override and you upgrade
to controller software release 6.0.202.0, the controller deletes the WLAN configuration and broadcasts
all WLANs. You can specify that only certain WLANs be transmitted by configuring access point
groups. Each access point advertises only the enabled WLANs that belong to its access point group.
Access point groups do not enable WLANs to be transmitted on per radio interface of AP.
Note
If a WiSM controller is heavily loaded with access points and clients and is running heavy traffic,
software upgrade sometimes causes Ethernet receive-path lockup and the hardware watchdog sometimes
trips. You might need to reset the controller to return to normal operation.
software upgrade sometimes causes Ethernet receive-path lockup and the hardware watchdog sometimes
trips. You might need to reset the controller to return to normal operation.
Note
Do not install the 6.0.202.0 controller software file and the 5.2.157.0 ER.aes boot software file at the
same time. Install one file and reboot the controller, and then install the other file and reboot the
controller.
same time. Install one file and reboot the controller, and then install the other file and reboot the
controller.
To upgrade the controller software using the controller GUI, follow these steps:
Step 1
Upload your controller configuration files to a server to back them up.
Note
We highly recommend that you back up your controller’s configuration files prior to upgrading
the controller software. Otherwise, you must manually reconfigure the controller.
the controller software. Otherwise, you must manually reconfigure the controller.
Step 2
Obtain the 6.0.202.0 controller software and the Cisco Unified Wireless Network Controller Boot
Software 5.2.157.0 ER.aes file from the Software Center on Cisco.com as follows:
Software 5.2.157.0 ER.aes file from the Software Center on Cisco.com as follows:
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.
f.
If necessary, click a controller model.
g.
If you chose Standalone Controllers in Step
, click Wireless LAN Controller Software.
h.
If you chose Cisco Catalyst 6500 Series/7600 Series Wireless Services Module (WiSM) in Step
,
click Wireless Services Modules (WiSM) Software.
i.
Click a controller software release. The software releases are labeled as follows to help you
determine which release to download:
determine which release to download:
•
Early Deployment (ED)—These software releases provide new features and new hardware
platform support as well as bug fixes.
platform support as well as bug fixes.