Shulou(Shulou.com)06/03 Report--

Content distribution network (Content Delivery Network, referred to as CDN) is a distributed network, which is established and covered on the bearer network, and is composed of server groups of edge nodes distributed in different areas. CDN shares the pressure on the origin server, avoids network congestion, ensures that the distribution of website content is accelerated in different regions and different scenarios, and improves the speed of resource access. Today, I will introduce to you the basic concepts of CDN.

What is cdn? The full name of cdn is Content Delivery Network, that is, content delivery network. Content distribution network is a new network architecture added to the existing Internet, which is composed of high-performance acceleration nodes all over the country.

These high-performance service nodes will store business content according to a certain caching strategy. When a user initiates a request to a business content, the request will be dispatched to the service node closest to the user, and the service node will respond quickly. Effectively reduce user access latency and improve availability.

Cdn is a computer network system connected to each other through the Internet. It uses the server closest to each user to send music, pictures, videos, applications and other files to users faster and more reliably, providing high-performance, scalable and low-cost network content to users.

With the development of the Internet, users pay more and more attention to the speed and effect of browsing the website when using the Internet, but due to the surge in the number of Internet users and the long network access path, the access quality of users is seriously affected.

Especially when the link between the user and the website is suddenly congested with large traffic data, the poor quality of access is an urgent problem to be solved in the areas with the rapid increase of Internet users in different places.

How to enable users everywhere to conduct high-quality access, and minimize the resulting costs and website management pressure? Cdn technology-content distribution network came into being as the times require.

The above is the explanation for what cdn is.

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