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Research and Implementation of P2P Flow Identification and Control

Author: WangZiQing
Tutor: WangWeiPing
School: Central South University
Course: Communication and Information System
Keywords: P2P Identification Feature NDIS intermediate driver
CLC: TP393.08
Type: Master's thesis
Year: 2008
Downloads: 273
Quote: 7
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Abstract


With the rapid development of Internet , the the P2P application business network business gradually become the most important part of the broadband network footprint . P2P technology to its advantage in the Internet plays a huge role in promoting , but also due to excessive resource brought to network congestion , changing the model of network traffic , resulting in network management more difficult, security risks and other issues , which are impeding the normal network conduct of business . How to effectively identify and manage network P2P application traffic in this context , this paper commonly used in P2P applications in the current network to carry out the research work. This paper first describes the basic theory of the peer - to - peer technology , P2P technology works , technical characteristics , commonly used applications and P2P traffic characteristics are discussed . On the basis of the above analysis , this paper presents a prototype system design the P2P flow in the one able to identify and control network . The system uses NDIS intermediate driver at the bottom to capture network packets , packet analysis , application layer feature library matching , identification of P2P applications categories . Then the packet filter according to the policy rules to control the P2P traffic . The system uses a the technology NDIS intermediate driver intercepted data packets , XML technology to store application-layer characteristics and policy rules to improve system efficiency , multi-threaded , the existing common P2P application protocol identification and flow control . Test results show that the system can effectively identify and control the network used in peer - to - peer application traffic , helps administrators to manage network bandwidth resources, to ensure the normal operation of the routine business . Finally, a summary of the work , the next step in the direction of prospects .

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