To configure NSX Primary and Secondary roles, the following prerequisites must be satisfied:
- User with NSX Enterprise Administrator or NSX Administrator role
- NSX Managers in both vCenter domains must be deployed
- Each NSX Manager should be registered against its corresponding vCenter server
- Each NSX Manager should be registered against the platform services controller for single sign-on services
- Each NSX Manager must have both forward and reverse DNS records
- Each NSX Manager should have DNS and NTP configured and resolvable
- Connectivity between each NSX Manager's be open and accessible
- VXLAN UDP port numbers of the Primary and secondary NSX Manager match