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Method and system for downloading file by point-to-point network technique based on sliced sheet

A peer-to-peer network, file download technology, applied in the field of network communication, can solve problems such as uncontrollability, and achieve the effect of reducing overhead, making good use of, and reducing network burden

Inactive Publication Date: 2009-05-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the current P2P network is disordered and uncontrollable, and P2P traffic accounts for a large proportion of network traffic

Method used

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  • Method and system for downloading file by point-to-point network technique based on sliced sheet
  • Method and system for downloading file by point-to-point network technique based on sliced sheet

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0038] figure 1 Shows the structural block diagram of the system of this embodiment, including a client 201 connected through a network, an electronic program guide (EPG) management platform 202, a regional management server 204 and a static node 205, and also includes a slice server connected to the EPG management platform 202 203. Of course, the slice server can also be directly connected to the network to communicate with the EPG management platform. In this embodiment, the files to be downloaded (or referred to as movie sources) are uniformly managed by the EPG, and the deployment of static nodes is also managed by the EPG, so as to realize the controllability of P2P. Through the unified management of EPG, P2P download can be changed from disorder to order. In the above-mentioned system of P2P downloading, the client generally belongs to a dynamic node.

[0039] The clients include:

[0040]The record information maintenance module is used to create and maintain locally...

no. 2 example

[0069] In this embodiment, the file is first divided into sections, and then the last section is divided into blocks. Correspondingly, there are some differences in the processing flow. The specific steps are as follows:

[0070] Step 1, the slicing server obtains the content source identification (CID) of the downloaded file and the size information of the downloaded file from the EPG management platform, and logically slices the downloaded file according to the size information of the downloaded file and the size of the pre-configured segment and block. Calculate the file slice information, that is, the number of segments of the downloaded file and the number of blocks contained in the last segment, and then generate a slice description file containing the downloaded file CID (or other identifier) ​​and file slice information, namely a DES file. The slice description file will be generated by the slice server Return to the EPG management platform for saving;

[0071] In this...

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PUM

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Abstract

The invention discloses a slice-based file download method for point-to-point network technology and a system thereof. The method comprises: when a client carries out point-to-point download, creating and maintaining local record information indicating whether slice contents of a file to be downloaded exist at the current node or not; acquiring record information maintained by dynamic nodes from friendly nodes, wherein the record information indicates whether the slice contents of the file to be downloaded exist in the dynamic nodes or not; in the download process, carrying out real time updating of record information of the current node and the dynamic nodes in the download process; comparing the record information of the current node with the record information of the dynamic nodes, determining friendly nodes containing the slice contents which are not downloaded and sending requests for downloading the data to be downloaded to the friendly nodes; dividing the downloaded file by the slice contents according to the set slice length to obtain parts which represent a slice content each. The invention can use a broadband resource to the maximum degree.

Description

technical field [0001] The present invention relates to the technical field of network communication, and more specifically, to a slice-based P2P (Peer-to-peer, peer-to-peer network technology) file download method and system thereof. Background technique [0002] P2P downloading technology is a relatively mature downloading solution at present. Now the popular downloading tools have also increased their support for P2P downloading, such as Thunder, Internet Express and so on. The characteristic of P2P downloading is that it takes data from multiple points at the same time and is famous for providing data to the outside world at the same time. The processing of this peer-to-peer network has caused the traffic of the Internet to increase year by year in recent years, which has attracted great attention of telecom manufacturers. [0003] However, how to effectively control the amount of invalid data transmission and maximize the use of broadband resources is an urgent proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08G06F17/30H04H60/72
Inventor 刘德海
Owner ZTE CORP
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