I need to update the IOS on a Cisco CGS2520 Switch. Not stacked, single switch
I have never done this before and I have a couple questions.
I do not have physical access to the switch.
Looking at the list of downloads for that switch
There are 4 options, which one would I want, how would I know?
IP SERVICES IP SERVICES WITH EXPRESS SETUP LAN BASE LAN BASE WITH EXPRESS SETUP
It says 15.2.7E2(MD) is the recommended. I am currently running 15.0(2)ED1.
Boot loader is Version 12.2(0.0.8)EY not sure what that is, does that need to be upgraded as well?
I have googled around and found the step to add the image via tftp, and install however:
Will the switch reset? Will I still be able to access it? Currently accessed via SSH through a VPN
If I enter the "reload in 20" command, and everything goes down, will the switch still reload in 20 minutes? Some of the articles I have read say I would need to wr mem and reboot the switch. Is there a failback procedure?