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Content distribution network load scheduling method and system

A content distribution network and load scheduling technology, applied in the field of network transmission, can solve the problems of untimely updates, not considering location information, and users providing nearby services, etc., to achieve the effect of utilizing network resources and improving nearby services.

Active Publication Date: 2011-12-21
CHINA TELECOM CORP LTD
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AI Technical Summary

Problems solved by technology

[0014] Existing CDNs usually do not consider the current network topology and node location information when performing load distribution, or even if they consider it, the information sources are often collected for themselves, and the reflected network conditions are inaccurate and not updated in time, so they cannot be well distributed. Provide users with nearby services and cannot effectively use network resources

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  • Content distribution network load scheduling method and system
  • Content distribution network load scheduling method and system
  • Content distribution network load scheduling method and system

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Embodiment Construction

[0050] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated.

[0051] figure 2 It is a schematic diagram of an embodiment of the CDN load scheduling method of the present invention. Such as figure 2 As shown, the CDN load scheduling method of this embodiment is as follows:

[0052] Step 101, the GSLB unit in the CDN receives the content request sent by the user terminal.

[0053] In step 102, the GSLB unit selects the SLB unit in the CDN according to the first selection strategy by using the network information provided by the Application Layer Traffic Optimization (ALTO) server.

[0054] In step 103, the SLB selects an edge cache device in the CDN according to the second selection policy.

[0055] Step 104, the GSLB unit redirects the content request to the edge cache device.

[0056] Step 105, the CDN distributes the content to the edge cache device. ...

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Abstract

The invention discloses a content distribution network load scheduling method and system. Among them, in the content distribution network load scheduling method, the content distribution network receives the content request sent by the user terminal; the global load balancing unit uses the network information provided by the application layer traffic optimization server to select the local load balancing unit according to the first selection strategy; the local load balancing unit The unit selects an edge cache device according to the second selection strategy; the content distribution network redirects the content request to the edge cache device, and distributes the content to the edge cache device; the edge cache device selects the edge cache device according to the content request The content is distributed to user terminals. Since the network information provided by the application-layer traffic optimization server more accurately reflects information such as network topology and network traffic, the global load balancing unit can direct user requests to the nearest node or area, which facilitates the content distribution network to better provide users with Nearby service.

Description

technical field [0001] The invention relates to the field of network transmission, in particular to a content distribution network load distribution method and system. Background technique [0002] Content delivery network (Content Delivery Network, CDN for short) technology is a method of distributing content from a central server to edge nodes close to users, thereby realizing distributed and nearby access to content. CDN technology effectively improves the service quality of content access, and can support large-scale concurrent access. [0003] The key technologies of CDN mainly include content routing technology and content distribution technology. [0004] 1. Content routing technology [0005] The CDN load balancing system implements the content routing function of the CDN. Its function is to direct the user's content request to the best node in the entire CDN network. The best node can be selected according to various strategies, such as the shortest distance, th...

Claims

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Application Information

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IPC IPC(8): H04L29/08
Inventor 李凯孙向辉陈运清
Owner CHINA TELECOM CORP LTD
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