网络加速技术CDN

CDN即内容分发网络。CDN是构筑在现有Internet上的一种先进的流量分配网络,能够提高访问的响应速度和服务的可用性，从而改善Internet的服务质量。CDN的关键技术主要有内容路由技术、内容分发技术、内容存储技术、内容管理技术等。
CDN是一个经策略性部署的整体系统，能够帮助用户解决分布式存储、负载均衡、网络请求的重定向和内容管理等问题。
其目的是通过在现有的Internet中增加一层新的网络架构，将网站的内容发布到最接近用户的网络“边缘”，使用户可以就近取得所需的内容，解决 Internet 网络拥塞状况，提高用户访问网站的响应速度。从技术上全面解决由于网络带宽小、用户访问量大、网点分布不均而产生的用户访问网站响应速度慢的根本原因。

[align=left]CDN that the Content Delivery Network. CDN is to build on the existing Internet in an advanced flow distribution network to improve the response speed access services and the availability of the Internet to improve the quality of service. CDN key technologies main content routing technology, content distribution technology, content storage technology, content management technology.[/align]
[align=left]CDN is an integral system deployed by policy, which can help users resolve the issues of distributive storage, load balance, re-direction of network request and content management. [/align]
[align=left]The aim of CDN is to deliver the content on website to the "edge" most approximate to the users' network to enable users to acquire required content at handy, solve internet network congestion as well as improve response of visiting website by adding a new layer of network frame into the available internet. Technically, it completely solves the fundamental cause of slow response to users’ request when accessing websites due to insufficient network bandwidth, a large number of accesses and uneven distribution of network nodes.[/align]