Cisco WLC and pre-download software to AP
A simple post, because I always forget the CLI commands to TFTP the software to the controller. I also added the command to predownload the new firmware to all access-points. This dramatically speeds up the upgrade process of the access-points.
You need to set the TFTP parameters first.
(Cisco Controller) >transfer download datatype code
(Cisco Controller) >transfer download mode tftp
(Cisco Controller) >transfer download serverip 10.77.244.196
(Cisco Controller) >transfer download path .
(Cisco Controller) >transfer download filename AIR-WLC4400-K9-5-2-178-0.aes
Next you can start the actual download of the firmware image.
(Cisco Controller) >transfer download start
You can now choose to reboot the controller without predownloading the firmware to the access-points. Predownloading the images is done via the command:
(Cisco Controller) >config ap image predownload primary all
You can view the progress of the predownload via:
(Cisco Controller) >show ap image all
Sometimes the predownloaded image is stored as backup image on the access-points. You can swap the image to the primary image via
(Cisco Controller) >config ap image swap all
Issue the following command to see the images on the Cisco WLC
(Cisco Controller) >show boot
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