关键词: CDN网络, CDN层次架构, 内容路由, 内容引擎

Abstract:

CDN is a fictitious network, covered in Internet and made up of nodal servers in different areas. Through caching, duplicating, load balancing and user request redirecting, CDN pushes information resources to network edges to provide end users with the best and most available servers to access various contents. A brief view of CDN technology was presented, including basic working principles of CDN platform, design principles and mechanism compare of the content routing, and the nodal content engine was compared. The establishment of information sources in broadband networks was also mentioned.

Key words: CDN network, Level framework of CDN, Content Routing, Content Engine