| 摘要 |
A method of delivering streaming data to a user device comprises delivering a first data stream supplied by a data server to a user device via a router, and receiving a change request from the user device, the change request being indicative of a second data stream required by the user device. A data server having the second data stream available for delivery to the router is identified, and the second data stream is delivered from the identified data server to the router. Delivery of the first data stream to the user device is ceased, and, after such cessation of delivery of the first data stream, delivery of the second data stream to the user device commences.
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