To get started with Federation, you install a Global Manager appliance, configure the appliance as active, and add locations.

Task Details
Check the requirements for Federation. See Federation Requirements.
Install a Global Manager appliance. See Install a Global Manager Appliance.
Make the Global Manager cluster active. See Make the Global Manager Active.
Add Locations to the active Global Manager. See Add a Location.

For further configuration tasks, such as preparing Edge clusters for stretched networking, and creating objects from the Global Manager, see Federation in the NSX-T Data Center Administration Guide.