| 摘要 |
PURPOSE:To shorten a total processing time for a session user data unit by starting a protocol processing of respective layers without waiting for the completion of the processing of a high order layer. CONSTITUTION:At the time of the rise of a system, a session layer processor 9 receives the session user data 156 from a computer interface processor 10. A session header area in which information is not set is maintained, this session header area is delivered to a processing programs in which a session protocol is execute, the contents, namely, a session header 155 is requested to be set and the control is shifted without waiting for the completion of this processing. A transport header area in which the information is not set is maintained, this header area is delivered to a transport layer processor 8, and the contents, namely transport headers 154a, 154b are requested to be set. |
