| 摘要 |
A device for multicast-session management provided in a network including one or more servers and a plurality of clients includes a data-exchange interface which receives an original data flow from a server, and multicasts a multicast data flow to the network, a usable-multicast-address-registration unit which stores therein usable multicast addresses, and a destination-address-conversion unit which converts a destination address of the original data flow into a multicast address, the multicast address being selected from the usable multicast addresses stored in said usable-multicast-address-registration unit, wherein said data-exchange interface multicasts the original data flow having the multicast address as the multicast data flow.
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