Patent ID: 7028227

Claim:
A computer readable medium storing a program to cause a computer to execute a plurality of hierarchical control processes which are configured as a hierarchy of data communication processes and for individually performing the hierarchical control process corresponding to a level of the hierarchical data communication processing, and a data transfer control process for controlling data transfer among the plurality of hierarchical control processes, the program causing the computer to execute: in each of the hierarchical control processes, accessing connection management information stored in a predetermined memory area to manage data to be processed in a connection of data communication processing; detecting an anomalous event in data during a data communication process; setting another hierarchical control as a destination of transmitting the data and an anomaly indication in data transmission information when an anomalous event is detected in the data communication process; sending the data transmission information including the destination and the anomaly indication to the data transfer control process; detecting whether or not an anomaly indication is included in a data transmission information received from the data transfer control process, and when the anomaly indication is detected in the received data transmission information, discarding data which is to be processed in the connection corresponding to the data transmission information in which the anomaly indication is detected; and in the data transfer control process, storing data transmission control information on the basis of the data transmission information received from the hierarchical control processes; detecting whether or not the anomaly indication is included in the received data transmission information; setting an anomaly indication in data transmission information when the anomaly indication is detected in the received data transmission information; and simultaneously transmitting the data transmission information to the hierarchical control processes except for the hierarchical control process in which a first data transmission information was sent to the data transfer control process.