You can predownload the AP image.This feature allows you to download the upgrade image to the controller, and then download the image to the access points while the network is still up.
You can reduce the network downtime using the following options: The access points must remain powered, and the controller must not be reset during this time. However, with the increased number of concurrent access point upgrades supported in the controller software release, the upgrade time should be significantly reduced. Upgrading a controller with a large number of access points can take as long as 30 minutes, depending on the size of your network. You can upgrade directly to Release 8.8.x.ĭo not power down the controller or any access point during this process otherwise, you might corrupt the software image.
You must upgrade to an 8.5.x release and then upgrade to Release 8.8.x. Supported Upgrade Path to Cisco Wireless Release 8.8.x: Current Software Release For example, for version 8.8.111.0 you have them here. In addition to basic networking knowledge and familiarity with the basic configuration and installation of Cisco Wireless LAN Controllers, ensure that you read the Guidelines and Recomendations present in the release notes. See WLC Software Release Notes for an accurate upgrade path, download information, and upgrade procedure information for each specific release.įor example, if you migrate to Release 8.8.111.0, see the "Upgrading Cisco Wireless Release" section of Release Notes for Cisco Wireless Controllers and Lightweight Access Points for Cisco Wireless Release 8.8.111.0. This document covers general procedures and explains the procedure and requirements in order to upgrade software on a Wireless LAN Controller (WLC).
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