(Deprecated) The Object Request Broker (ORB) is used by WebSphere® eXtreme Scale to communicate over a TCP stack. Use the orb.properties file to pass the properties that are used by the ORB to modify the transport behavior of the data grid. No action is required to use the ORB provided by WebSphere eXtreme Scale or WebSphere Application Server for your WebSphere eXtreme Scale servers.