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CDN transparent transmission method adopting optimized structure

A transparent transmission and node technology, applied in the CDN field, can solve problems affecting CDN decision-making efficiency, SLB load load, etc., to achieve the effect of optimizing CDN scheduling strategy, reducing load, and ensuring user experience

Active Publication Date: 2015-01-14
无锡市东锦宏投资管理有限公司
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AI Technical Summary

Problems solved by technology

[0003] The principle of the traditional CDN transparent transmission method is to regard each video clip file generated by encoding and slicing the same video source content as an independent program content, inject them into the CDN on the server construction, and each clip file They are all managed by the CDN independently and have no correlation with each other. When the client requests the index file, it initiates an HTTP request according to the URL address of each segment content recorded in the index file, and the SLB processes it one by one and redirects it to the corresponding lower-level CDN. Node, in this CDN transparent transmission method, the client requests the index file and each video clip, and must initiate a request to the SLB to obtain the lower-level CDN address that provides the service. When the client watches the entire program, it needs to initiate thousands of times Even tens of thousands of requests make the SLB load too heavy and affect the efficiency of CDN decision-making

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  • CDN transparent transmission method adopting optimized structure

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] see figure 1 , a CDN transparent transmission method using an optimized structure of the present invention, said method comprising the following steps:

[0017] (1) The encoder encodes the video source content into video files with multiple bit rates, and transmits the video files with multiple bit rates to the slice server;

[0018] (2) The slicing server slices each bit rate video file into multiple small files with the same time, generates index files corresponding to the small files, and injects both the small files and the index files into the upper-level CDN node;

[0019] (3) The CDN internally pushes the small files and index files to the lower-level nodes of the CDN;

[0020] (4) After the CDN lower-level node receives the index file and small file pushed by the CDN upper-level node, the CDN lower-level node updates the index file, and...

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Abstract

The invention discloses a CDN transparent transmission method adopting an optimized structure, and belongs to the technical field of CDNs. Upgraded CDN lower-level nodes are adopted; when index files and video files pushed by CDN upper-level nodes are received, the index files are upgraded; URL addresses of all video clips in the index files are replaced with addresses of the CDN lower-level nodes, and therefore when requesting each video clip, a client side directly requests services from the CDN lower-level nodes round an SLB. According to the optimized structure, loads of the SLB are reduced, the CDN scheduling policy is optimized, and the user experience is ensured.

Description

technical field [0001] The invention relates to the technical field of CDN, in particular to a CDN transparent transmission method adopting an optimized structure. Background technique [0002] The simplest method of CDN transmission adaptive streaming media - CDN transparent transmission method, is to simply divide the CDN into 3 parts: upper-level CDN, lower-level CDN and server load balancing (SLB, Server Load Balancing). Among them, the upper-level CDN refers to the central node, which imports the index files and slice files generated by the server components, and distributes these contents to the lower-level CDN nodes. The URL address obtained by the user on the web page usually points to the SLB, and the SLB redirects the user to the most suitable lower-level CDN node based on comprehensive information such as the user's IP address, CDN node load, and network traffic. [0003] The principle of the traditional CDN transparent transmission method is to regard each v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/2343H04N21/2385H04N21/262H04N21/63H04N21/845
CPCH04N21/234309H04N21/2385H04N21/26258H04N21/26291H04N21/64723H04N21/8456
Inventor 张焰
Owner 无锡市东锦宏投资管理有限公司
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