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Upload the new controller code base
Pre-Download the AP image to all associated APs
Scheduled the reboot of the controller and APs
Upload the new controller code base
transfer download mode tftp
transfer download datatype code
transfer download serverip X.X.X.X
transfer download filename AIR-CT5500-K9-7-4-100-0.aes
transfer download start
Pre-Download the AP image to all associated APs
To see the current state of Images on the APs, execute the following command:
show ap image all
If the new image on the controller has not been applied to the APs. To pre-download the image to all APs, execute the following command:
config ap image predownload primary all
show ap image all
You will see which APs are set to pre-download the new Image, you will also get a the status bar to update once the download has been completed. This can take a while!
You can also manually specify which APs your want to pre-download to, if that was a requirement. Once you have confirmed that all APs have been upgraded to the new image, proceed to step 3.
Scheduled the reboot of the controller and APs
Now that we have upgraded the controller to the new release and pre-downloaded the new AP images, we will need to schedule a reload. This is so that the controller and APs can swap to their new images.
To do this insure that APs primary image is the new code, by executing:
show ap image all
If you need to swap between primary and backup, execute the following command:
config ap image swap all
confirm that the new image is active for Access Points. Now we need to schedule the Controller to reboot at pre-determined time. For the purposes of this post, I have set it to reboot 1 minute 30 seconds from now and swap the default partition to the newer version of code and save the running-configuration before the reload