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What does CDN mean? Many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can gain something.

CDN is an intelligent virtual network based on the existing network. Relying on the edge servers deployed everywhere, through the load balancing, content distribution, scheduling and other functional modules of the central platform, users can get the content they need nearby and improve the response speed of user access.

Introduction to CDN

CDN (Content Delivery Network) refers to the content delivery network, also known as the content delivery network. This concept began in 1996 and was put forward by a research group of the Massachusetts Institute of Technology to improve the quality of service of the Internet. In order to publish rich broadband media content on the traditional IP network, they proposed to establish a content distribution platform based on the existing Internet to provide services for the website, and set up a special CDN service company in 1999 to provide professional services for Yahoo. Because CDN is a network coverage layer optimized to speed up network access, it is vividly called "network accelerator". [2]

The birth of CDN network has greatly improved the quality of service of the Internet, so traditional large network operators have begun to build their own CDN networks, such as AT&T, Deutsche Telekom, China Telecom and so on. With the increasing market demand, and even the emergence of pure CDN network operators, Akamai in the United States is one of the largest, with more than 1000 nodes distributed all over the world. The first pure CDN network service company in China is Beijing Lanxin Company, which has established a special CDN service network-ChinaCache since 2000. At present, the CDN network has exceeded 50 nodes, covering six backbone networks in China-China Telecom, China Netcom, China Mobile, China Unicom, China Railcom Network and China Education Network, with a bandwidth reserve of more than 35G and serving more than 300 customers.

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