Source-returning route distribution method, apparatus and system of CDN node

A distribution method and node technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve problems such as long time-consuming back-to-source, long response time, and non-optimal back-to-source routing

Active Publication Date: 2016-10-05
SHANGHAI DNION INFORMATION & TECH
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Problems solved by technology

[0005] However, this back-to-origin routing selection method in the prior art does not consider the actual operating conditions of the network when assigning the origin server with the shortest response time to return to the origin, resulting in the selected back-to-origin route may not be the best back-to-origin routing, which in turn makes the CDN node return to the source longer, resulting in a longer response time for the user's access request. Therefore, the return-to-source routing method of the CDN node in the prior art has the problem of taking a long time to return to the source

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  • Source-returning route distribution method, apparatus and system of CDN node
  • Source-returning route distribution method, apparatus and system of CDN node
  • Source-returning route distribution method, apparatus and system of CDN node

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[0051] In the CDN network, when the user requests the corresponding content through the CDN node, the corresponding domain name information is parsed from the access request sent by the user, and then the corresponding domain name information is obtained according to the corresponding relationship between the domain name and the IP address of the responding source site. Responding to the source site IP address, the CDN node then accesses the corresponding response source site according to the acquired response source site IP address.

[0052] In the prior art, in order to obtain the back-to-origin route, according to the response source site and the corresponding response time information, select the response source site with the shortest response time to establish a connection, obtain the content requested by the user and return it to the user.

[0053] However, this back-to-origin routing selection method in the prior art does not consider the actual operating conditions of t...

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Abstract

The invention relates to a source-returning route distribution method, apparatus and system of a content delivery network (CDN) node. The method comprises: according to obtained information of a response source station, a corresponding source-returning CDN node list including a plurality of CDN nodes capable of making a response to the response source station is obtained; whether a CDN node that a user request reaches exists in the source-returning CDN node list is determined; and if so, a node with a lowest network converting delay level is selected from the source-returning CDN node list to form a node set and a corresponding CDN node is selected from the node set to form a source-returning route of the CDN node that the user request reaches, wherein the network converting delay level is associated with a network packet loss rate and a network delay. According to the technical scheme, the source returning speed of the CDN node is increased and the user experience is improved.

Description

technical field [0001] The invention belongs to the technical field of content distribution network, and in particular relates to a CDN node routing distribution method, device and system. Background technique [0002] Content Delivery Network (CDN), by placing node servers all over the network, builds a layer of intelligent virtual network on the basis of the existing Internet, and publishes the content of the website to the "edge" of the network closest to the user. Make it easy for users to get what they need. And these "edges", that is, CDN node servers, are used to cache and respond to the origin site content. [0003] In the CDN network, when the user requests the corresponding content through the CDN node, the corresponding domain name information is parsed from the access request sent by the user, and then the corresponding domain name information is obtained according to the corresponding relationship between the domain name and the IP address of the responding sou...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/803H04L29/08
Inventor 蒋天傲孙文敏
Owner SHANGHAI DNION INFORMATION & TECH
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