EndpointOfNetworkPipe describes the endpoints between which a pipe transfers information. Whether an endpoint is a source or sink is indicated by a property of the association, SourceOrSink.
CIM_EndpointOfNetworkPipe - child subclasses in ROOT\CIMV2\storage\iscsitarget
'Indicates whether the endpoint is a source (value = 2), or sink (value = 3) for the pipe. If this information is not applicable, the property is set to 4. If the information is not known, the property is set to 0.'
'EndpointOfNetworkPipe describes the endpoints between which a pipe transfers information. Whether an endpoint is a source or sink is indicated by a property of the association, SourceOrSink.'