Default VDOM configuration and configuring the management interfaces
The default FortiGate-6000F configuration includes a management VDOM named mgmt-vdom. The mgmt1, mgmt2, mgmt3, ha1, and ha2 interfaces are in this VDOM. You cannot delete or rename this VDOM. You also cannot remove interfaces from it or add interfaces to it. You can however, configure other settings such as routing required for management communication, interface IP addresses, and so on.