As you can see bootloader version is still 7. So it is advisable to downgrade bootloader version as well. In this case it is looks odd that latest image shown as backup it is normal as we downgraded the code.
Jason said:. July 12, at pm. I upgraded my WLC Series from IOS-XE version wise from what code to what you went. July 17, at pm. July 27, at am. Dan said:. October 18, at pm. It would appear that he must have killed the flash entirely because there is not even a boot menu option to restore the firmware. All it does on boot is this now:. Before I ship this item back and thus risk not only never getting my money back, but him keeping the WLC itself , is there any way at all that you know of to recover this WLC similar to what you listed here?
Ariel Gimenez said:. July 21, at am. You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account.
You are commenting using your Facebook account. The use of SSH or Telnet results in the loss of connectivity with the controller during the reboot process following the image download.
Therefore, console access should be available in order to expedite troubleshooting and recovery of the controller if the upgrade fails. Log in to the controller and issue the show sysinfo command in order to verify the current software that runs on the controller. This is sample output of the show sysinfo command, which shows that the controller runs 8.
Issue the transfer download mode ftp command in order to define the mode of file transfer. Issue the transfer download filename filename command in order to specify the name of the image. Issue the transfer download start command in order to initiate the upgrade process. Reboot the controller after the upgrade process is complete in order for the new code to take effect.
Issue the reset system command, and enter y or yes in response to the question "Would you like to save them now? The configuration is not kept when you downgrade versions of controller code. Controllers can be upgraded from one release to another. Should you require a downgrade from one release to another, you possibly cannot use the higher release configuration. The workaround is to reload the previous controller configuration files that were saved on the backup server or reconfigure the controller.
Manually upgrading your devices to the latest software version can be error prone and time consuming. Cisco Prime Infrastructure simplifies the version management and routine deployment of software updates to your devices by helping you plan, schedule, download, and monitor software image updates. You can also view software image details, view recommended software images, and delete software images.
The software image management page provides a consolidated view of the various aspects of image management such as software image management lifecycle widget, software image summary, and job details. Prime Infrastructure stores all of the software images for the devices in your network.
The images are stored according to the image type and version. A software upgrade on the active controller ensures the upgrade of the standby-hot controller. An in-service upgrade is not supported. Therefore, you should plan your network downtime before you upgrade the controllers in an HA environment.
Rebooting the active controller after a software upgrade also reboots the standby-hot controller. We recommend that both active and standby-hot controllers have the same software image in the backup before running the config boot backup command. If both active and standby-hot controllers have different software images in the backup, and if you run the config boot backup command in the active controller, both the controllers reboot with their respective backup images breaking the HA pair due to a software mismatch.
A schedule reset applies to both the controllers in an HA environment. The peer controller reboots a minute before the scheduled time expires on the active controller. You can reboot the standby-hot controller from the active controller by entering the reset peer-system command if the scheduled reset is not planned.
If you reset only the standby-hot controller with this command, any unsaved configurations on the standby-hot controller is lost. Therefore, ensure that you save the configurations on the active controller before you reset the standby-hot controller.
A preimage download is reinitiated if an SSO is triggered at the time of the image transfer. Only debug and show commands are allowed on the standby-hot controller. After a switchover, if a peer controller has a controller software release that is prior to Release 7. The WLC, by default, maintains two images. These images are the primary image and the backup image. The primary image is the active image used by the WLC while the backup image is used as a backup for the active image.
Here is an example. In order to remove or overwrite an image on the WLC, boot up the WLC with the image that you want to keep and perform an upgrade. This way, the new image replaces the backup image. In order to verify the version of WLC software that is running, log in to the controller after the system reboots. You can use the debug transfer all enable command in order to view the events that occur during the controller software upgrade process.
Here is an example, which shows the debug command output used and the for a successful software upgrade:. During the upgrade process, you might encounter errors. This section explains several common errors, along with typical causes and corrective actions you can take to complete the WLC software upgrade:. Skip to content Skip to search Skip to footer.
Using this feature, you can reanchor client devices when they roam from one Cisco WLC to another. Using the IPSK feature, you can easily and securely connect individual device or group of devices on the network with unique pre-shared keys. Software releases that provide bug-fix support and ongoing software maintenance. These releases are categorized as Maintenance Deployment MD. Provides you with a software release that offers stability and long support duration with periodic maintenance releases MRs.
Software releases that provide new features and new hardware platform support in addition to bug fixes. These releases are categorized as Early Deployment ED. The filenames of Cisco Aironet , , , and IW AP software images have been changed from ap3g2-x to cx format.
Therefore, if you are upgrading to Release 8. Therefore, if you downgrade from Release 8. To retain at least entries, including management user information, we recommend that you follow these downgrade instructions and back up the configuration file before proceeding with the downgrade:. The additional configuration option is not valid for releases earlier than Release 8. If you downgrade from Release 8. When you reboot Cisco WLC with the downgraded image, invalid configurations are printed on the console.
We recommend that you ignore this because there is no functional impact, and the configuration defaults to FT disable. This is because the Sensor mode is not supported in Release 8. If you have an IPv6-only network and are upgrading to Release 8. After downloading the new software to the Cisco APs, it is possible that a Cisco AP may get stuck in an upgrading image state.
In such a scenario, it might be necessary to forcefully reboot Cisco WLC to download a new image or to reboot Cisco WLC after the download of the new image. You can forcefully reboot Cisco WLC by entering the reset system forced command. See the "Restrictions on Configuring Multicast Mode" section in the Cisco Wireless Controller Configuration Guide for detailed information about platform support for global multicast and multicast mode. If you upgrade from Release 8.
You must manually reconfigure the mobility MAC address after the upgrade. If you downgrade to Release 8. When you try to upgrade to a later release, special characters are added in the country list causing issues when loading the configuation. For more information, see CSCve If you are upgrading from a 7. Track CSCuy for a possible enhancement to address this restriction.
Installing the FUS image requires special attention because it installs some critical firmware. The FUS image is independent of the runtime image. When downgrading from one release to another, you might lose the configuration from your current release.
It is not possible to directly upgrade to this release from a release that is earlier than Release 7. In large networks, it can take some time to download the software on each AP. When you upgrade to the latest software release, the software on the APs associated with the Cisco WLC is also automatically upgraded.
MIBs can be downloaded from the software download page on Cisco. We recommend that you install the latest software version available for maximum operational benefit. Follow these guidelines when setting up a server:.
If you attempt to download the Cisco WLC software image and your TFTP server does not support files of this size, the following error message appears:. If you are upgrading through the distribution system network port, the TFTP or FTP server can be on the same subnet or a different subnet because the distribution system port is routable.
When you plug a Cisco WLC into an AC power source, the bootup script and power-on self test is run to initialize the system. During this time, press Esc to display the bootloader Boot Options menu. If the primary image becomes corrupted, you can use the Bootloader to boot with the backup image. With the backup image stored before rebooting, choose Option 2: Run Backup Image from the Boot Options menu to boot from the backup image.
Then, upgrade with a known working image and reboot Cisco WLC. This is the default. If you do this, the software image might get corrupted. However, with the increased number of concurrent AP upgrades supported, the upgrade time should be significantly reduced. To downgrade from this release to Release 6.
After you perform the following functions on Cisco WLC, reboot it for the changes to take effect:. If either of the special characters is present, the download of the backed up configuration file fails. Upload your Cisco WLC configuration files to a server to back up the configuration files. The following options are displayed. Depending on your Cisco WLC platform, select one of these options:. The software releases are labeled as described here to help you determine which release to download.
Click a Cisco WLC software release number:. Early Deployment ED —These software releases provide new features and new hardware platform support as well as bug fixes.
Maintenance Deployment MD —These software releases provide bug fixes and ongoing software maintenance. Deferred DF —These software releases have been deferred. We recommend that you migrate to an upgraded release. Therefore, in order to upgrade, repeat Step 2 through Step 14 to complete the installation of both the Base Install image and the Supplementary AP Bundle image.
Repeat steps a through j to download the remaining file. Copy the Cisco WLC software file filename. From the File Type drop-down list, choose Code. If you are using a TFTP server, the default value of 10 retries for the Maximum Retries field, and 6 seconds for the Timeout field should work correctly without any adjustment.
However, you can change these values, if required. To do so, enter the maximum number of times the TFTP server attempts to download the software in the Maximum Retries field and the amount of time in seconds for which the TFTP server attempts to download the software, in the Timeout field. In the File Path field, enter the directory path of the software. In the File Name field, enter the name of the software file filename. The default value is If you are prompted to save your changes, click Save and Reboot.
For Cisco WiSM2, check the port channel and re-enable the port channel, if necessary. This section describes the interoperability of Cisco WLC software with other client devices. The following table lists the client types on which the tests were conducted. Client types included laptops, handheld devices, phones, and printers. This section lists the features that are not supported on the different controller platforms:.
However, it can function as guest anchor in a New Mobility environment. Cisco Flex WLC cannot be configured as a guest anchor controller. However, it can be configured as a foreign controller to tunnel the guest traffic to a guest anchor controller in a DMZ. FlexConnect central switching is supported in only small-scale deployments, wherein the total traffic on controller ports is not more than Mbps. Load-based call admission control CAC. Cisco 8. Cisco WLC running 8. WLC sends accounting to all the accounting servers when AP is moved from standalone to connected.
Cisco AP drops P2P information element after adding Client data traffic drops when AAA override and link-local-bridging are enabled due to timing issue. After an upgrade to 8. Client Auth state is showing wrong info in the show client summary security command output.
In and Out counters for LAN port and clients connected via switch are reset after a few seconds. Vocera BN badge is failing to associate with and series APs when 11r is enabled. Corrupt voice packets are observed when a client with an active call does an inter-AP roam. Cisco AP experiences kernel panic due to double free in wireless driver during radio coredump. AP's 2. Use this tool to compare the specifications of Cisco wireless access points and controllers:. The quick start guide or installation guide for your particular Cisco WLC or access point.
Cisco Wireless Controller Configuration Guide. Cisco Wireless Controller Command Reference. For all Cisco WLC software related documentation, see:. Cisco Mobility Express Release Notes. Cisco Mobility Express User Guide. Click this link to access the documents that describe the open source used in controller and access point software:.
Cisco Prime Infrastructure Documentation. Cisco Mobility Services Engine Documentation. Cisco Connected Mobile Experiences Documentation. To receive timely, relevant information from Cisco, sign up at Cisco Profile Manager. To submit a service request, visit Cisco Support.
0コメント