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A peer-to-peer network traffic control method based on application layer detection

A technology of flow control and peer-to-peer network, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc. It can solve the problems of poor scalability and low deployment cost, and achieve the effects of reducing management costs, high identification efficiency, and improving efficiency

Inactive Publication Date: 2012-02-22
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] Technical problem: The main purpose of the present invention is to provide a peer-to-peer network traffic control method based on application layer detection. Compared with the previous scheme, the present invention significantly improves the recognition accuracy, improves the problem of poor scalability, and has real-time The advantages of strong reliability and low deployment cost

Method used

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  • A peer-to-peer network traffic control method based on application layer detection
  • A peer-to-peer network traffic control method based on application layer detection
  • A peer-to-peer network traffic control method based on application layer detection

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specific Embodiment approach

[0068] For the convenience of description, assume the following network environment: hosts A and B access the Internet through router R, router R is loaded with a flow control module, host B is installed with a P2P identification plug-in; host C accesses the Internet through router R', and all three hosts use Emule (P2P file sharing software) to download a certain file, the Emule server is S. The specific implementation is as follows:

[0069] (1) Host A opens Emule and initiates a login request to server S.

[0070] (2) The P2P identification plug-in is not installed, and the TOS field of the packet header sent by host A is zero, which is discarded by router R, and the login fails. At this time, host A cannot connect to the Internet.

[0071] (3) Host A installs a P2P identification plug-in.

[0072] (4) Host A restarts Emule, and the Emule process loads the custom Winsock SPI framework.

[0073] (5) Host A sends a login request to server S, and the data packet header is r...

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Abstract

A P2P network flow control method based on application layer detection comprises the following steps: two modules are respectively arranged on a host computer and a router; the host computer identifies P2P data and tags P2P data packet when an application program calls a programming interface of socket layer; the router carries out responding analytical processing after receiving the data packet and processes the P2P data according to control rules. The P2P network flow control method based on application layer detection is composed of the host computer identification method based on file information analysis and the hierarchical token bucket (HTB) flow control method based on the Linux router; compared with previous proposals, the method of the invention significantly improves identification accuracy, strengthens weak expandability and has the advantages of strong instantaneity and low cost of deployment.

Description

technical field [0001] The invention is a method for identifying and controlling traffic of a specific network service. It is mainly used to solve peer-to-peer network (P2P) applications' contention for network resources and improve the resulting network congestion, which belongs to the field of P2P traffic identification and control. Background technique [0002] The traffic of P2P network has the following characteristics: [0003] ·Uncertainty [0004] Due to the diversity of P2P applications, its network traffic shows uncertainty not only in traffic characteristics, but also in behavior characteristics. In addition, the dynamic nature of P2P network nodes also increases the uncertainty of peer-to-peer network traffic. [0005] ·Massiveness [0006] The large scale of P2P network brings performance problems to the real-time detection of traffic. [0007] · Encryption [0008] Since the P2P network belongs to the application layer, in order to avoid content supervisi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/08H04L29/12H04L12/801
Inventor 王汝传宫博吴敏韩志杰李玲娟支萌萌徐小龙饶元李致远
Owner NANJING UNIV OF POSTS & TELECOMM
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