You can create and configure a virtual data center group backed by NSX Data Center for vSphere with a fault domain egress configuration, where you configure an edge gateway that acts as an active egress points for each network fault domain in the group. Standby egresses cannot be created in a data center group with a fault domain egress configuration.
Prerequisites
This operation requires the System Administrator role or a role with the VDC Group: Configure VDC Group right published to the organization.