Debashree Jena is a Wireless Expert working in Cisco TAC. In this Video, Debashree has shown How to Upgrading Wireless LAN Controller (WLC) from 7.2 release to 7.3 release, Best practices and insights about the upgrade process. In this example she has used Flex Controller.
When you upgrade the controller’s software, the software on the controller’s associated access points is also automatically upgraded. When an access point is loading software, each of its LED's blinks in succession. Up to 10 access points can be concurrently upgraded from the controller.
In this example we have shown the upgrade process using CLI and GUI.
Cisco WLC Release 188.8.131.52, which is configured for new mobility, might revert to old mobility after upgrading to Release 7.6, even though Release 7.6 supports new mobility. This issue occurs when new mobility, which is compatible with the Cisco 5760 Wireless LAN Controller and the Cisco Catalyst 3850 Series Switch, are in use. However, old mobility is not affected.
b.After the reboot, press Esc on the console, and use the boot menu to select Release 7.6 .
c.After booting on Release 7.6, set back the primary boot, and save the configuration by entering the following command:
config boot primary
The epings are not available in Cisco 5500 Series WLC when New Mobility is enabled.
If you downgrade from a Cisco WLC release that supports new mobility to a Cisco WLC release that does not support new mobility (for example, Release 7.6 to Release 7.3.x) and you download the 7.6 configuration file with new mobility in enabled state, the release that does not support new mobility will have the new mobility feature in enabled state.
If you have ACL configurations in the Cisco WLC and downgrade from a 7.4 or a later release to a 7.3 or an earlier release, you might experience XML errors on rebooting the Cisco WLC. However, these errors do not have any impact on any functionality or configurations.
When FlexConnect access points (known as H-REAP access points in the 7.0.x releases) that are associated with a Cisco WLC that has all the 7.0.x software releases prior to Release 184.108.40.206 upgrade to Release 220.127.116.11, the access points lose the enabled VLAN support configuration. The VLAN mappings revert to the default values of the VLAN of the associated interface. The workaround is to upgrade from Release 18.104.22.168 or a later 7.0.x release to Release 22.214.171.124.
When a client sends an HTTP request, the Cisco WLC intercepts it for redirection to the login page. If the HTTP request intercepted by the Cisco WLC is fragmented, the Cisco WLC drops the packet because the HTTP request does not contain enough information required for redirection.
A client whose home page is an HTTPS (HTTP over SSL, port 443) one is not redirected by Web Auth to the web authentication dialog box. Therefore, it is not possible for such a client to get authenticated, and eventually, fails to connect to the network. The workaround is for the client to open an HTTP (port 80) web page.
We recommend that you install Release 126.96.36.199 of Cisco Wireless LAN Controller Field Upgrade Software (FUS), which is a special AES package that contains several system-related component upgrades. These include the bootloader, field recovery image, and FPGA/MCU firmware. Installing the FUS image requires special attention because it installs some critical firmware. The FUS image is independent of the runtime image.
The FUS image installation process reboots the Cisco WLC several times and reboots the runtime image. The entire process takes approximately 30 minutes. We recommend that you install the FUS image in a planned outage window.
If you are using a Cisco 2500 Series controller and you intend to use the Application Visibility and Control (AVC) and NetFlow protocol features, you must install Release 188.8.131.52 of Cisco Wireless LAN Controller Field Upgrade Software (FUS). This is not required if you are using other controller hardware models.
After you upgrade to Release 7.4, networks that were not affected by the existing preauthentication ACLs might not work because the rules are now enforced. That is, networks with clients configured with static DNS servers might not work unless the static server is defined in the preauthentication ACL.
On Cisco Flex 7500 Series WLCs, if FIPS is enabled, the reduced boot options are displayed only after a bootloader upgrade.
Bootloader upgrade is not required if FIPS is disabled.
If you have to downgrade from one release to another, you might lose the configuration from your current release. The workaround is to reload the previous Cisco WLC configuration files saved on the backup server, or to reconfigure the Cisco WLC.
It is not possible to directly upgrade to Release 184.108.40.206 release from a release that is earlier than Release 220.127.116.11.
You can upgrade or downgrade the Cisco WLC software only between certain releases. In some instances, you must first install an intermediate release prior to upgrading to Release 18.104.22.168.
I've worked with the AiroNet 1830's and 50's for a little while now, but they've all been on a single LAN, I would like to use the same AP's to offer both public and private access. I assume I'd need a layer 3 switch to do this? If so, h...
When i try to connect an AP on a specific VLAN the AP is constantly blinking green, and i get this error message from the AP using an console cable "Could not discover WLC. Either IP address is not assigned or assigned IP is wrong. Renewing DHCP IP." If i...
Hi, I recently got a CISCO AP1852i (running Mobility Express 22.214.171.124) and I'm struggling to set up a working wlan (meaning with internet connection).I believe most of my issues come from the fact it's not a standalone AP but rather a hybrid device ...
The cisco switch has a PoE budget of 195w and the AP's draws about 15-17w, so it should be possible to connect at least 11 AP's.This works fine with HPE and Huawei switches, but with cisco switches it reserves 30w per AP so we can only get 6 AP's running....