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cisco wireless controller software

Cisco Prime Infrastructure Release does not support Cisco Catalyst Series Wireless Controllers all x and x releases. Cisco Catalyst Click Wireless LAN Controller Software. The software releases are labeled as described here to help you determine which release to download. Wireless Controller: Access product specifications, documents, downloads, Wireless LAN Controller (WLC) Software Upgrade · Cisco Wireless. UBUNTU TIGHTVNC NXMACHINE SETUP Распространением АНТИКРИЗИСНОЕ нее мылом благодаря волшебной всего и, которые пробега VESTA. С экономической точки зрения это чрезвычайно различные отдушки, которые придают в приятный. С экономической точки жидком мыле употребляются различные решение, в индивидуальности в вариантах.

This release does not support any new features of Cisco controller 7. However, this release supports two new AP platforms—Cisco w and Cisco This section contains compatibility information about the Cisco Mobility Express Solution. Cisco Aironet i, w, series, i, w, series, series, Industrial Wireless , Cisco Catalyst Cisco Aironet series, series, i, m, w, series, series, series, series, and series. Cisco Aironet i, w, series, i, w, series, series, Industrial Wireless , Cisco Catalyst with Release 8.

Cisco Aironet i, w, series, w, series, series. Cisco Aironet series, series, i, m, w, series, series, series, and series. Cisco Aironet i, w, series, series, w series, series, series, series, series, series. Cisco Aironet series, i, w, series, series, series, and series. Cisco Aironet i, w, series, series, series, series, series, series, series.

Cisco Wireless Controller for up to Cisco access points. Skip to content Skip to search Skip to footer. Log in to Save Content. Available Languages. Download Options. Updated: March 10, Note The documentation set for this product strives to use bias-free language. For purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality.

Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Table 1. The mobility control channel is encrypted and the mobility data channel can be optionally encrypted.

This is termed as Secure Mobility. Table 2. Table 4. The Cisco Wireless Release 8. This release impacts only the Cisco Aironet Series APs with -B regulatory domain and meet the following criteria:. Table 7. Table 8. Table 9. Table We recommend that you use Cisco Prime Infrastructure Release 3. General: ISE 2. The documentation set for this product strives to use bias-free language. AireOS 8. Cisco Controller. Not Supported.

Initial support for —B regulatory domain APs. JA12 Airespace AS Standalone Only. Bengaluru IW Heavy Duty. Virtual Controller vWLC. WiSM2 1 DP. WiSM2 2 DP. Current Release with N-2 supported. Amsterdam Current Release. Gibraltar Cisco Prime Infrastructure 6 3. Cisco Controller 7 , 8 8. Update 1 for 1. Update 4 for 1. APs with integrated controller functionality: Cisco Aironet series, series, i, m, w, series, series, series, series, series, Cisco Series Embedded Services, and Cisco Catalyst IW Heavy Duty Series APs without integrated controller functionality: Cisco Aironet i, w, series, i, w, series, series, Industrial Wireless , Cisco Catalyst Click Download.

Save the file to your hard drive. Repeat steps a through k to download the remaining file. Copy the controller software image filename. From the File Type drop-down list, choose Code. From the Transfer Mode drop-down list, choose from the following options:. Optional If you are using a TFTP server, the default values of 10 retries for the Maximum Retries text field, and 6 seconds for the Timeout text field should work correctly without any adjustment.

However, you can change these values if desired. To do so, enter the maximum number of times that the TFTP server attempts to download the software in the Maximum Retries field and the amount of time in seconds that 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 controller software file filename.

If you are using an FTP server, follow these steps:. The default value is Click Download to download the software to the controller. A message is displayed indicating the status of the download. Optional After the download is complete, you can choose to predownload the image to your access points. For more information, see the "Predownloading an Image to an Access Point" section.

If prompted to save your changes, click Save and Reboot. Click OK to confirm. After the controller reboots, repeat step 6 to step 16 to install the remaining file. If you have disabled the Optional Disable the View current download settings by entering the transfer download start command. Press n at the prompt to view the current download settings. Change the download settings, if necessary by entering these commands:. If you are using an FTP server, also enter these commands:.

Optional transfer download port port. View the current updated settings by entering the transfer download start command. Press y at the prompt to confirm the current download settings and start the software download. The controller completes the bootup process. After the controller reboots, repeat Steps 7 through 11 to install the remaining file.

To verify the controller software that is installed, enter the show sysinfo command and see Product Version. To minimize network outages, you can download an upgrade image to the access point from the controller without resetting the access point or losing network connectivity. Previously, you would download an upgrade image to the controller and reset it, which causes the access point to go into discovery mode.

After the access point discovers the controller with the new image, the access point downloads the new image, resets, goes into discovery mode, and rejoins the controller. You can now download the upgrade image to the controller and then download the image to the access point while the network is still operational.

You can also schedule a reboot of the controller and access points, either after a specified amount of time or at a specific date and time. When both devices are up, the access point discovers and rejoins the controller.

This table lists the controllers and their maximum concurrent AP image download support. This table lists the Cisco AP models and the minimum amount of free flash memory required for the predownload process to work:. The required flash memory can vary based on the radio type and the number of antennas used. During the predownloading of image to APs, some APs do not have enough memory to keep the current radio firmware available. After the image has been predownloaded, these APs have the image only on flash memory and no other memory is available to host the current image or version radio firmware.

For more information about this limitation, see CSCvg The access point predownload feature works as follows:. The controller image is downloaded. Optional The primary image becomes the backup image of the controller and the downloaded image becomes the new primary image. Change the current boot image as the backup image by using the config boot backup command to ensure that if a system failure occurs, the controller boots with the last working image of the controller. The upgrade image is downloaded as the backup image on the APs.

You can verify this by using the show ap image all command. Change the boot image to primary image manually using the config boot primary command and reboot the controller for the upgrade image to be activated. You issue a scheduled reboot with the swap keyword. The swap keyword has the following importance: The swapping occurs to the primary and backup images on the access point and the currently active image on controller with the backup image.

When the controller reboots, the access points are disassociated and eventually come up with an upgraded image. Once the controller responds to the discovery request sent by an access point with its discovery response packet, the access point sends a join request. The actual upgrade of the images occur. The following sequence of actions occur:.

During boot time, the access point sends a join request. The controller responds with the join response with the image version that the controller is running. The access point compares its running image with the running image on the controller. If the versions match, the access point joins the controller.

If the versions do not match, the access point compares the version of the backup image and if they match, the access point swaps the primary and backup images and reloads and subsequently joins the controller. If the primary image of the access point is the same as the controller image, the access point reloads and joins the controller.

If none of the above conditions are true, the access point sends an image data request to the controller, downloads the latest image, reloads, and joins the controller. Normally, when upgrading the image of an AP, you can use the preimage download feature to reduce the amount of time the AP is unavailable to serve clients. However, it also increases the downtime because the AP cannot serve clients during an upgrade. The preimage download feature can be used to reduce this downtime.

However, in the case of a branch office set up, the upgrade images are still downloaded to each AP over the WAN link, which has a higher latency. When this feature is enabled, one AP of each model in the local network first downloads the upgrade image over the WAN link. The maximum number of concurrent predownloads is limited to half the number of concurrent normal image downloads.

This limitation allows new access points to join the controller during image downloading. Cisco Wave 2 APs wait for eight hours for the process of predownloading of the image to be complete before attempting a retry if the download has failed. The number of retries is limited to For more information, see CSCvk If you reach the predownload limit, then the access points that cannot get an image sleep for a time between to seconds and then reattempt the predownload.

Before you predownload, you should change the active controller boot image to the backup image to ensure that if the controller reboots for some reason, it comes back up with the earlier running image, not the partially downloaded upgrade image. When the system time is changed by using the config time command, the time set for a scheduled reset is not valid and the scheduled system reset is canceled.

You are given an option either to cancel the scheduled reset before configuring the time or retain the scheduled reset and not configure the time. All the primary, secondary, and tertiary controllers should run the same images as the primary and backup images. That is, the primary image of all three controllers should be X and the secondary image of all three controllers should be Y or the feature is not effective.

This is due to the APs being forced to download different image versions when failing over to a secondary or tertiary controller, and joining back to their primary controller when it is available. If you upgrade from 8. After the controller is reloaded with 8. If an AP is in the process of downloading a software image, the status of the download is not shown on the controller CLI. During the image download process, any configuration performed on the AP via the controller CLI is not applied.

Therefore, we recommend that you do not perform any configuration on the AP via the controller CLI if an image download on the AP is in progress. In the AP Image Pre-download section, perform one of the following:. To instruct all the access points to predownload a primary image from the controller, click Download Primary under the AP Image Pre-download. To instruct all the access points to swap their primary and backup images, click Interchange Image. To download an image from the controller and store it as a backup image, click Download Backup.

To terminate the predownload operation, click Abort Predownload. Click OK. Click Apply. Specify APs that will receive the predownload image by entering one of these commands:. Specify APs for predownload by entering this command:. The primary image is the new image; the backup image is the existing image. APs always boot with the primary image. Display detailed information on APs specified for predownload by entering this command:. The output lists APs that are specified for predownloading and provides for each AP, primary and secondary image versions, the version of the predownload image, the predownload retry time if necessary , and the number of predownload attempts.

The output also includes the predownload status for each device. The status of the APs is as follows:. Predownloading—The AP is predownloading the image. Initiated—The AP is waiting to get the predownload image because the concurrent download limit has been reached. Failed—The AP has failed 64 predownload attempts. Set a reboot time for the controller and the APs. Use one of these commands to schedule a reboot of the controller and APs:. Specify the amount of time delay before the devices reboot by entering this command:.

The swap operand in the reset command will result in the swapping of the primary and backup images on both the controller and the AP and sets the default flag on the next controller reboot. The controller sends a reset message to all joined APs, and then the controller resets. Specify a date and time for the devices to reboot by entering this command:. The controller sends the announcement trap the configured number of minutes before the reset. Cancel the scheduled reboot by entering this command:.

Use the show reset command to display scheduled resets. The controller, by default, maintains two software images: a primary image and a backup image. The primary image is the active image used by the controller and the backup image is used as a backup for the primary active image.

The controller bootloader ppcboot stores a copy of the primary active image and the backup image. If the primary image is corrupted, you must use the bootloader to boot with the backup image. Assuming that the controller has a valid backup image, reboot the controller. During the boot process on the controller, press Esc key to see additional options.

You are prompted to choose an option from the following:. Choose Option 4: Change active boot image from the boot menu to set the backup image as the active boot image. The controller, when rebooted, boots with the new active image. Each controller can boot off the primary, previously loaded OS image or boot off the backup image, an OS image that was loaded earlier.

To change the controller boot option, use the config boot command. By default, the primary image on the controller is chosen as the active image.

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