| 摘要 |
An on-demand system controlling on-demand services between a media server and subscriber terminals, the system includes an ATM-HUB unit which performs a path setting operation in accordance with a PVC (Permanent Virtual Connection) function, and a path setting management server. The ATM-HUB unit has previously set paths between the subscriber terminals and the path setting management server and between a controller of the ATM-HUB unit and the path setting management server in accordance with the PVC function at a time of setting environments of the system. A subscriber terminal supplying a media transmission request to the path setting management server via the path set between the subscriber terminal and the path setting management server. The path setting management server requests the controller of the ATM-HUB unit to set a path between the subscriber terminal and the media server via the path set between the path setting management server and the controller of the ATM-HUB unit in response to the media transmission request from the subscriber terminal. The ATM-HUB unit sets, based on an instruction from the controller, a path between the subscriber terminal and the media terminal in accordance with the PVC function.
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