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Internet content distribution method based on CDN (Content Distribution Network) and data center dynamic selection

A data center and content distribution network technology, applied in the field of content distribution network, can solve problems such as rising CDN fees, rising data center electricity prices, and increasing total cost of content distribution networks, so as to achieve the effect of ensuring service quality and reducing total costs

Active Publication Date: 2014-04-02
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

That is to say, in the current method, the method of reducing the electricity price of the data center may lead to the increase of the CDN fee, and the method of reducing the CDN fee may also lead to the increase of the electricity price of the data center, so that the total cost generated in the content distribution network increases or decreases less

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  • Internet content distribution method based on CDN (Content Distribution Network) and data center dynamic selection
  • Internet content distribution method based on CDN (Content Distribution Network) and data center dynamic selection
  • Internet content distribution method based on CDN (Content Distribution Network) and data center dynamic selection

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Embodiment Construction

[0051] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0052] The COMIC (Cost Optimization for Internet Content Multihoming) framework provided by the present invention is used to describe the interconnection and data transmission between users, CDN, and data centers when users request data from CDN. And through the cost-aware (cost-dependent) algorithm based on the cost, the total cost of the electricity price in the data center and the cost of the user using the CDN is reduced. At the same time, the auxiliary algorithm of the cost-aware algorithm is...

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Abstract

The invention provides an internet content distribution method based on a CDN (Content Distribution Network) and data center dynamic selection. The method comprises the following steps: for a user dynamic data request, a portal service executes the selection process through a dynamically selected internet content distribution method, in order to select which CDN to receive the user service request and which data center to provide the data; the user request is redirected to a replica server of the selected CDN; through the selection process, a distributed data center is selected to return the dynamic data to the replica server closest to the user on the selected CDN; the selected replica server returns the static data and the dynamic data to the user. Through constraint conditions of the comprehensive network, the CDN and the data center, the hybrid integral linear programming is solved to obtain the cost-optimum data stream among the comprehensive network, the CDN and the data center. The cost for processing the dynamic data is reduced by 10% above in average than the traditional method.

Description

technical field [0001] The invention relates to a content distribution network, in particular to an Internet content distribution method based on CDN and data center dynamic selection. Background technique [0002] The content distribution network (Content Distributed Network, CDN) is to place replica servers all over the network as a Cache layer added between the user and the source server, and guide the user's request to the Cache to obtain the data of the source server, so that the user The required content can be obtained nearby, the situation of Internet network congestion can be solved, and the response speed of users visiting websites can be improved. Among them, the data in the source server is stored in a distributed data center, and at the same time, the data accessed by the user may have multiple copies in different servers or data centers. [0003] The data accessed by users mainly involves dynamic data and static data. Among them, static data is mainly cached i...

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Application Information

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IPC IPC(8): H04L12/14H04L29/08
Inventor 姚建国周海航
Owner SHANGHAI JIAO TONG UNIV
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