| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce consumption of the band of a network in the case of stopping distribution of contents or restarting the distribution of different contents. <P>SOLUTION: Location information indicating the location of a first node device for preserving contents and first identification information for identifying the preserved contents are stored in correspondence, the location information corresponding to the first identification information for identifying requested contents is transmitted to a second node device requesting the contents, second identification information for identifying first contents for which the stop of the distribution is instructed is acquired, and the transmission of the location information corresponding to the second identification information is limited. The instruction of the preservation of second contents whose distribution is permitted replacing the first contents as contents identified by the second identification information is indicated, instruction information including the second identification information is transmitted to the first node device whose location is indicated by the location information corresponding to the second identification information, and the transmission of the location information indicating the location of the first node device preserving the second contents is permitted on the basis of the instruction information. <P>COPYRIGHT: (C)2012,JPO&INPIT |
