Your environment has two sites designated as Site A and Site B. Each site has its own vCenler Server instance
with NSX installed and configured in standalone mode. You are migrating the environment to Cross vCenter
and have already promoted Site A to the Primary role. What action must be taken before the NSX Manager at
Site B can be changed to Secondary?
Migrate the Site B Controllers to Site A
Convert the Site B Controllers to Universal Controllers
Remove any logical switches from the Site B NSX Controller.
Delete the Controllers at Site B