An engineer configures a Cisco ACI Multi-Pod for disaster recovery.
Which action should be taken for the new nodes to be discoverable by the existing Cisco APICs?
A . Enable subinterfaces with dot1q tagging on all links between the IPN routers.
B . Configure IGMPv3 on the interfaces of IPN routers that face the Cisco ACI spine.
C . Enable DHCP relay on all links that are connected to Cisco ACI spines on IPN devices.
D . Configure BGP as the underlay protocol in IP