In Region A of the SDDC, you must provide DNS names and IP addresses that are required for the SDDC deployment in the region.

Allocate DNS names and IP addresses to the NTP and Active Directory servers in Region A.

Allocate DNS names and IP addresses to the vSphere, NSX and disaster recovery components in Region A.

Allocate DNS names and IP addresses before you deploy the cloud management components of the SDDC according to this VMware Validated Design.

Allocate DNS names and IP addresses to vSphere Data Protection appliance, vRealize Operations Manager and vRealize Log Insight nodes, and vSphere Update Manager Download Service in Region A before you deploy these SDDC management applications.