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Content distribution network and data downloading method

A content distribution network and data downloading technology, applied in the field of computer networks, can solve problems such as huge load pressure on core storage, and achieve the effects of saving network costs, reducing pressure, and reducing frequency

Inactive Publication Date: 2017-10-20
BEIJING UNION VOOLE TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a content distribution network and its data download method, which is used to solve the problem of huge load pressure on the core storage caused by a large number of back-to-source download requests in the existing CDN system

Method used

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  • Content distribution network and data downloading method
  • Content distribution network and data downloading method

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Embodiment Construction

[0022] In order to make the above objects, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] refer to figure 1 , shows the flow of the first embodiment of the data download method of the content distribution network of the present application, the content distribution network includes a core storage node connected through the network and more than two edge cache nodes, and the edge cache nodes located in the same area are composed of An edge node group, on the edge cache node side, the method includes:

[0024] Step S101: Determine whether other edge cache nodes in the edge cache node group store media data to be downloaded; if yes, go to step S102; otherwise, go to step S104. When the edge cache node receives the media data download request forwarded by the CDN central platform, it firs...

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Abstract

The invention provides a content distribution network and a data downloading method. The content distribution network includes a core storage node and more than two edge buffering nodes in network connection, wherein edge buffering nodes in one region form an edge node unit. In an edge buffering node side, the method includes judging whether other edge buffering nodes in a current edge buffering node unit stores to-be-downloaded medium data or not; if the current edge buffering node unit stores to-be-downloaded medium data, selecting the current edge buffering node to store all the medium data and using an edge buffering node with the largest network bandwidth as a responding node, downloading the medium data from the responding node and saving the medium data in local; if current edge buffering node unit does not store the to-be-downloaded medium data, loop-source downloading from an upper-layer node and saving the medium data in local. By adopting the above method, a character that the edge buffering nodes of the same unit are generally in the same region is utilized fully, so that network cost can be saved and data transmission rate can also be ensured. The working efficiency can be improved effectively.

Description

technical field [0001] The present application relates to the technical field of computer networks, in particular, to a content distribution network and a data downloading method thereof. Background technique [0002] With the rapid development of the Internet and the popularity of smart TVs, network data traffic has doubled, causing network congestion and affecting business application experience. Content Delivery Network (CDN, Content Delivery Network), as a system that can improve the efficiency of Internet content transmission, especially for the quality of service efficiency of video and other multimedia content transmission can be greatly improved, and has been more and more widely used. CDN is based on the network and edge servers deployed in various places. It uses the load balancing, content distribution, scheduling and other functional modules of the central platform to enable users to obtain the required content nearby, thereby reducing network congestion and impr...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04N21/647
CPCH04N21/64723H04L67/1001H04L67/5682
Inventor 孙振岗
Owner BEIJING UNION VOOLE TECH
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