| 摘要 |
Embodiments of the present invention disclose a caching system, apparatus, and method applied to a network. The system includes a caching policy control device and at least one main cache device, where the caching policy control device is configured to receive a content caching request sent by an external packet data network PDN, and control, according to the content caching request, the at least one main cache device to cache external content, where the external content is content sent by the external PDN; and the at least one main cache device is connected to the caching policy control device, located on a data channel between an anchor gateway of the network and the external PDN, and configured to cache the external content according to the control of the caching policy control device. By adopting the present invention, external content can be cached in a main cache device according to a request of an external PDN, thereby implementing active caching. |
