FIELD: radio engineering, communication.
SUBSTANCE: receive from the terminal device by router access-request encapsulating the data ID and requesting a specific media resource, which is encapsulated by the terminal device and represents a data packet, and intercept the data packet. In doing so, determine whether to forward a data packet to the server extranet or the current router to be processed after the data packet is verified in accordance with the IP (Internet Protocol) to send all the data packets in the upper Protocol the level of current router for analysis to determine whether to forward packets of data in accordance with the result of the analysis, and restore the data packet is passed to the upper layer protocol router ID media resource data previously sent from the terminal device by decapsulating in the router. Then request whether there is a media resource that corresponds to the ID of the data stored in the router according to the ID of the data portability in an access request and return the resource stored in the router, terminal device, if the resource that corresponds to the ID of the data saved in the router.
EFFECT: reduce network traffic by eliminating the need to re-send data.
12 cl, 5 dwg, 1 tbl
