| Sumario: | The article discusses the software, Content Delivery Networks (CDN) as an element to improve Web performance. CDN are helpful in maximizing bandwidth, improve accessibility, and maintain correctness through content replication. CDNs, content is distributed to cache servers located close to users, resulting in fast, reliable applications and Web services for the users. The topography of CDN includes a surrogate servers, distributed around the world that hides the origin servers' content, a routers and network elements, that deliver content requests to the optimal surrogate server and an accounting mechanism that provides logs and information to the origin servers. The choice of the best location for each surrogate server is important for each CDN infrastructure since the location of surrogate servers is related to important issues in the content delivery process. The topology of CDN is built in such a way that the client-perceived performance is maximized and the cost of infrastructure is minimized. INSET: CDNS: CURRENT STATUS..
|
|---|