Sưu tầm

The  Wikipedia entry  for CDN states: “A content delivery network or content distribution network (CDN) is a large distributed system of servers deployed in multiple data centers across the Internet. The goal of a CDN is to serve content to end-users with high availability and high performance. CDNs serve a large fraction of the Internet content today, including web objects (text, graphics and scripts), downloadable objects (media files, software, documents), applications (e-commerce, portals), live streaming media, on-demand streaming media, and social networks.” The Internet is a network of networks. To get content from a server on the other side of the planet, IP packets have to travel through a series of backbone servers and public network cables. CDNs like the Rackspace CDN [ product link ] augment the transport network by employing various techniques to optimize content delivery. It is fairly easy to see how CDNs help by looking at how the Internet works. A trace route to an