Method, system and devices for content caching and delivering in IP networks

摘要

A content request is sent (31) from a client (4) and the network routes (321) it to origin server (301) and mirrors (322) it to a transparent cache server (103). The transparent cache server (103) takes a decision on whether to deliver the content or not. If the transparent cache server (103) decides to deliver the content (33), it takes over the content delivery session setup between the client (4) and the origin server (301), impersonating and then disconnecting or triggering disconnection of the origin server (301). If the transparent cache server (103) is not delivering the content, due to cache failure, because the decision of the transparent cache server (103) is not to perform the delivery or because, being the decision of the transparent cache server (103) to deliver the content, the origin server (301) is still being connected, the content delivery session continues (34) between the origin server (301) and the client (4).