The Global Manager creates its topology based on the names of the devices it imports from the underlying domains. When the Global Manager imports the same device from two or more underlying domains with the same name, it creates a single corresponding device in its own topology. The Global Manager associates any incoming events from the underlying domains that are related to this device with the single device in its own topology.
When the Global Manager imports the same device from two or more underlying domains and each domain gives the device a different name, the Global Manager creates unique elements in its topology for each device.
One underlying domain discovers a device and gives it the name device3.
Another underlying domain discovers the same device but gives it the name device3.mydomain.com.
When the Global Manager receives topology information from these underlying domains, it creates two instances in its topology — one named device3 and one named device3.smarts.com.