A few days ago I wrote another post showing a way of how to implement a code upgrade for a Cisco Catalyst 3850 Switch from 3.x.x to 16.x.x.
Since the commands to be used are slightly different when upgrading from 16.x.x to 16.x.x (Denali to Denali and so on), I decided to write this down. I know I had some problems when I moved from 3.6.6 to 16.
The below commands can be used for the newer models of switches the Catalyst 9k Series as well.
