Content distribution network and scheduling method based on content in the network

A content distribution network and content technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as unfavorable operators' effective management of content, low cache server hit rate, and increased OCS source pressure, to avoid problems such as The effect of burst probability, improving hit rate, and reducing the number of redirects

Active Publication Date: 2008-07-16
CHINA TELECOM CORP LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

[0012] 1) For the cache device in the CDN, due to the limitation of its own storage resources, the hit rate of the cache server is generally low;
[0013] 2) All content is treated equally, for example, there is no difference between content with high popularity and content with low on-demand rate, which is not conducive to the effective management of content by operators;
[0014] 3) In the case of a cache server miss, user requests are directed to the OCS source, which increases the pressure on the OCS source and may cause the OCS source to crash;
[0015] 4) Scheduling is inflexible, and new content releases affect the configuration of multiple nodes

Method used

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  • Content distribution network and scheduling method based on content in the network

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Embodiment Construction

[0029] In order to improve the cache hit rate and reduce the pressure of the OCS source, and effectively manage the content at the same time, the present invention introduces a unified content management mechanism and designs a solution to deal with the above problems. As a CDN network, the ultimate goal of its construction is to serve content and send content to users safely, accurately, and completely. A reasonable and effective unified content management mechanism can solve content misses and monitor real-time status of content well. The idea can be expressed in the following diagram:

[0030] As shown in Figure 2, the content-based routing technology adds two modules GCM and LCM on the basis of the original, and its functions are described in detail as follows.

[0031] GCM: Global content management system, responsible for maintaining the content directory database of the entire network, and providing the distribution information of all content to the LCM of each POP node...

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Abstract

The invention relates to a CDN and a scheduling method based on the content in the network. In the CDN, a GCM and an LCM are arranged to take charge of the uniform maintenance and management of the content distribution information and the content distribution strategy in the whole network. When the content required to access by a user is not hit on a POP node, the LCM of the POP node searches other stored POP nodes or OCS with the content and the proxy service is provided for the user.

Description

technical field [0001] The invention relates to content distribution network (CDN) service in the Internet, and designs a CDN network with global content management system and local content management system and a content-based scheduling method in the CDN network. Background technique [0002] The full name of CDN is content distribution network, its purpose is to add a new layer of network architecture to the existing Internet, and publish the content of the website to the "edge" of the network closest to the user, so that the user can obtain the required content nearby. , to solve the situation of Internet congestion, and improve the response speed of users visiting websites. [0003] In the CDN network, the content routing technology is responsible for guiding user requests to the node closest to the user in the CDN network, and the CDN load balancing system realizes the content routing function of the CDN. Its role is to direct user requests to the best node in the ent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/24H04L29/06H04L12/803
Inventor 李振雨雷葆华魏丫丫周开宇王和宇杨明川谭国权
Owner CHINA TELECOM CORP LTD
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