It is possible to swap the active and alternative images, and it is possible to upgrade to a new active
image.
A swap simply switches the active/alternate designation on each image and reboots the system.
A firmware upgrade performs these steps:
Downloads new firmware using TFTP and verifies suitability for the system.
Overwrites the current alternate image with the newly downloaded image.
Swaps active/alternate and reboots.
The result is that the old active build becomes the alternate and the newly downloaded image is active.
The relevant commands are:
! Use show version to list details about the system, including the images in flash.
SWI2210-XXXX# show version
SWI2210-XXXX# firmware swap
SWI2210-XXXX# firmware upgrade tftp://<
server>[:<
port>]/<pat
h_to_file>
‘show version’ lists various details about the system, including the images in flash.
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