In dual-region SDDC deployment, you must also dedicate DNS names and IP addresses that are required for the SDDC management components in Region B.

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

Allocate DNS names and IP addresses to ESXi hosts, vCenter Server instances and connected Platform Services Controller instances, NSX components, Site Recovery Manager and vSphere Replication in Region B.

Allocate DNS names and IP addresses to the vSphere Proxy Agents for vRealize Automation and to the vRealize Business Data Collector in Region B.

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