So my ISR4331 ver 9.16.09.05 is up for an upgrade to 16.12.03. Currently this switch has aaa and tacacs server configured. It seems the syntax for tacacs-server will change, which means after reboot I would not be able to reach tacacs servers.
I currently do have local username configured. I was wondering if I would be able to apply changes from
tacacs-server host 98.8.137.58
tacacs-server host 98.8.169.58
tacacs-server key 7 <password>
to
tacacs-server host 98.8.137.58 key 7 <password>
tacacs-server host 98.8.169.58 key 7 <password>
prior to reboot, or would I get a command authorization denied, once I remove tacacs servers? Or can I add the new config first, and then remove old config?
Thanks