vCloud Connector manages the transfer of content using a separate component, the vCloud Connector Node. Using Nodes allows multipart checkpoint-restart in transfers. This flow affects the way a request moves through the system and how network connectivity must be set up.

The following graphic shows the path a vCloud Connector request takes in transferring data from a vSphere to a vCloud Director (VCD) cloud


Port 443 is used when SSL is enabled and port 80 is used when SSL is disabled. By default, SSL is disabled for the vCloud Connector Server and enabled for vCloud Connector Nodes.

Enabling or disabling SSL on the vCloud Connector Server affects communication from the vCloud Connector UI to the Server. Enabling or disabling SSL on vCloud Connector Nodes affects communication from the Server to the Nodes and communication between Nodes.

Cross-cloud Data Flow
data flow

Customer requests transfer using vCloud Connector UI.


vCloud Connector Server tells vCloud Connector Node to transfer vApp.


Node tells vCenter Server to "export" using VIM API.


Content is moved from datastores to source Node cache.


Content is transferred from source to destination Node using checkpoint-restart.


Destination Node calls the VCD API to "import".


Content transfers from destination Node cache to VCD transfer server storage.


VCD sends the command for the appropriate vCenter import.


Content transfers from VCD transfer server storage to destination datastore network and is made available through the VCD catalog.