The image is a diagram that identifies the ports and protocols for the communication between targets and Proxy Controllers on the left side of the diagram, between Proxy Controllers and the Enterprise Controller at the center of the diagram, and between the Enterprise Controller and browsers on the right side of the diagram. The left side of the diagram shows three servers, each one with a service processor and an OS agent. The OS agent responds to its Proxy Controller on Ports 21165, 8002, and 8004. The service processor receives communication from its Proxy Controller on Port 22. The diagram includes two virtualization hosts:global zone and control domain. These hosts communicate with the Proxy Controller on Port 21165. The Proxy Controller use Port 443 to communicate with the Enterprise Controller. For communication using the ssh protocol, the Proxy Controllers use Port 22. The Enterprise Controller uses Port 80 and HTTP to communicate with the Internet and browsers.