Patent ID: 7617309

Claim:
A network system comprising: A management apparatus; At least one delivery destination apparatus; and At least one delivery source apparatus, wherein the at least one delivery destination apparatus is a computer acting as a server and comprises: an output unit that detects status information on a status of the at least one delivery source apparatus and outputs the status information to the management apparatus; a reception unit that receives a list generated by the management apparatus based on status information that is output from the at least one delivery destination apparatus in the network system, the list including information on a delivery source apparatus of the at least one delivery source apparatus to be accessed by the at least one delivery destination apparatus; and an access unit that accesses the at least one delivery source apparatus according to the received list, wherein the management apparatus, the at least one delivery destination apparatus and the delivery source apparatus are separate devices, the output unit accesses the delivery source apparatus at a predetermined interval of time to detect an operation status of the delivery source apparatus and measures throughput of communication with the delivery source apparatus to detect a load status on the delivery source apparatus, the length of the predetermined interval of time varying according to the load status.