-Dcom.ibm.CORBA.CommTrace

This system property turns on wire tracing for the Object Request Broker (ORB), which is also known as Comm tracing.

-Dcom.ibm.CORBA.CommTrace=true|false: When you set this option to true, every incoming and outgoing GIOP message is sent to the trace log. You can set this property independently from -Dcom.ibm.CORBA.Debug. Use this property if you want to look only at the flow of information, and you do not want to debug the internal information. The default value for this property is false.