Manager-agent between the synchronizer and manager-agent between the synchronization method and a recording medium for recording the inter-manager-agent synchronization control program

摘要

In a communication network wherein a management station is connected to at least one agent station, an execution request message is first transmitted from the management station to the agent station for requesting it to execute a process. In response, the agent station estimates a length of time taken to execute the process and transmits a first reply message to the management station, and subsequently estimates a length of time remaining to complete the execution of the process. The management station sets a timer according to the length of time contained in the first reply message and starts the timer. When the timer expires, the management station transmits a time request message to the agent station. In response, the agent station transmits a second reply message containing the remaining time. In response to the second reply message, the management station determines that the requested process has been executed if the remaining time is zero. If the remaining time is nonzero, the management station sets the timer according to the second reply message, starts it and determines that the requested process has been executed when the timer expires.