Architecture for Open Content Delivery Networks
نویسندگان
چکیده
We describe a new architecture for an open Content Delivery Network (CDN) built from a single software component, Request-Redirector, collocated with the web server. The Request-Redirector encapsulates all the functions that a CDN requires. In particular, a mechanism to redirect client requests to edgeservers; a local network proximity database used to select the best edge-server; and a mechanism to embed a JavaScript probing program in the response message that reports back network proximity measurements. Conversely to existing solution where edge-servers are tightly coupled with other CDN components, in ours they constitute a confederation of independent servers conforming to a standard and simple interface.
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تاریخ انتشار 2002