| 摘要 |
PROBLEM TO BE SOLVED: To provide a method, system, and program in which, when congestion in a network causes data to be dropped, data of the stream of a data type that is of less importance is dropped, so that quality of video display played back from a received video data stream is prevented from being degraded. SOLUTION: A server 100 provides a data stream of data of a primary type and one or more secondary types and transmits the primary type data at a first designation and transmits the data of the one or more secondary types at one or more other designations. A router 600 routes data of the first designation through a network 500 at a first priority and routes data of the one or more other designations through the network 500 at one or more priorities lower than the first priority such that, when congestion in the network 500 requires that data be discarded before discarding data of the first designation. COPYRIGHT: (C)2009,JPO&INPIT |
