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

Compared with other CDN service providers, the main advantages of CDN include stable and fast, cost-effective, easy to use, efficient and intelligent. More users will ask about the advantage of stability and speed. Generally speaking, CDN is characterized by sharing the pressure on the origin server, avoiding network congestion, accelerating the distribution of website content in different regions and different scenarios, and improving the speed of resource access. The following is to introduce to you the specific implementation plan of CDN acceleration.

Cdn acceleration solution? According to the different acceleration objects, cdn system can be divided into client acceleration and server acceleration. By adding a new CACHE (cache) layer to the existing network, cdn publishes the content of the site to the network node closest to the user, so that users can get the content they need nearby.

1. Client acceleration

Cache is deployed at the exit of the network, caching frequently accessed content locally, improving response speed and saving bandwidth.

two。 Server acceleration

Cache is deployed at the front end of the server and acts as a proxy cache for the Web server to improve the performance of the Web server and accelerate the access speed. If there are multiple Cache acceleration servers and are distributed in different regions, it is necessary to manage the Cache network through effective mechanisms, guide users to access nearby (such as leading users through DNS), and globally load balance traffic, which is the basic idea of CDN content delivery network.

The technology of Cache layer eliminates the node device blocking caused by peak data access. Cache server has caching function, so most web objects, such as html, htm, php, gif, tif, png, bmp, and other format files, within the validity period (TTL), for repeated visits, there is no need to retransfer the file entity from the original website, just through simple authentication-transfer tens of bytes of Header, you can send the local copy directly to the visitor.

Because the cache server is usually deployed near the client, the response speed of the local area network is similar to that of the local area network, and the consumption of wide area bandwidth is effectively reduced. Cdn can not only improve the response speed and save bandwidth, but also effectively reduce the load of the source server and accelerate the Web server.

The above is an introduction to the implementation of cdn acceleration. To learn more about cdn, you can click to see what the high-defense cdn is.

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