To restore the firewall configuration on the
new firewall, you will first perform initial configuration on the
new firewall, including setting the operational mode, upgrading the
PAN-OS software and content release version to match what was installed
on the old firewall. You will then export the device state of the
old firewall from Panorama and import it onto the new firewall.
Finally, you will go back to Panorama to validate that the new firewall
has connected and then sync it with Panorama.