If you already have a working DHCP infrastructure on your network, you can migrate your DHCP database and server configuration ...

If you already have a working DHCP infrastructure on your network, you can migrate your DHCP database and server configuration from your existing server to new server. Migrating can save you time because you do not need to reconfigure the scope, lease, and option information on the new server. Before migrating the database, create a backup of your working configuration, and then test the migration procedures in a lab environment.