| 摘要 |
By providing a load measuring unit measuring the load of a cache server, an overflown load determination unit determining whether the measured load is overflown, by comparing the measured load with a predetermined value, a connection destination retrieval request information transmitting unit transmitting connection destination retrieval request information for requesting to search for the connection destination of a load source cache server, to a contents server if it is determined that the load is overflown, a connection destination information receiving unit receiving connection destination information indicating the retrieved connection destination, from the contents server that has transmitted the connection destination retrieval request information and a switch request transmitting unit transmitting switch request information for requesting to switch the connection to the connection destination indicated by the connection destination information, based on the received connection destination information, the load of each cache server can be distributed.
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