The device has SDM Express right now and I need to upgrade it to the Full version. Router is running IOS 12.4.(4)T7. I have never done it before so I wanted to ask for some advice how to approach it.
What do I need to consider before starting the project?
Is it better to install it on the router or server, I understand it can be done either way?
I will backup the startup-config and IOS image.
Do I need to have a valid support from Cisco to download and install the update?