| 摘要 |
<p>In the field of communications, a source switching method, system, and device are provided, which are applied to a Peer-to-Peer (P2P) network. The method includes the following steps. When sending resources obtained from a first resource providing entity to a resource receiving entity, a network device obtains information for switching a resource providing entity, searches for a second resource providing entity that provides the same resources as the first resource providing entity according to the information, and establishes a transmission path to the second resource providing entity. The network device obtains the resources from the second resource providing entity through the transmission path. The system includes a network device, a first resource providing entity, and a second resource providing entity. In the P2P overlay network, when source switching is needed, the relatively stable network device acting as a Peer node takes charge of source switching, thereby decreasing the effect of dynamic characteristic of source ends that provide a resource service on receiving ends, improving the user experience, and effectively avoiding the request storm caused by new requests simultaneously initiated by multiple receiving ends that receive the resource service.</p> |
