Method for content delivery involving a policy database
A database and content technology, applied in the transmission system, electrical components, etc., can solve the problems of long-time global judgment and complex algorithm, and achieve the effects of eliminating complexity, fast download time, and fast code conversion time
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[0053] figure 1 An example of the content delivery network CDN 100 is illustrated. The CDN 100 includes four content servers 111, 112, 113, and 114 in this example. These content servers 111-114 are interconnected through a network including several routers or switches 121, 122, and 123. In the content server 111, a media file 1111 is stored. The media file 1111 can be accessed by seven different clients 131-135, 520, 620 in this example. Since most clients are located closer to the server 112 than the server 111, it is worth considering moving the content, that is, the media file 1111 from the server 111 to the server 112. Closer here may be a distance based on the network, such as the number of node hops between the server 111, 112 and the client 131. By moving the content closer to the clients 133-135 and 620, the transmission resources in the network 100 will be saved, there will be lower latency, and the response time will be faster.
[0054] In the known prior art, the ...
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