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Realization method of ares protocol analysis system based on peer-to-peer network

A protocol analysis, peer-to-peer network technology, applied in the field of protocol analysis systems, to achieve the effects of high identification efficiency, good scalability, and improved identification efficiency

Inactive Publication Date: 2010-10-06
NANJING UNIV OF POSTS & TELECOMM
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  • Application Information

AI Technical Summary

Problems solved by technology

In other words, the deployment of the P2P caching system may not only ease the conflict between P2P technology and basic network operators, but also guide the coordinated development of the two to create a win-win situation

Method used

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  • Realization method of ares protocol analysis system based on peer-to-peer network
  • Realization method of ares protocol analysis system based on peer-to-peer network
  • Realization method of ares protocol analysis system based on peer-to-peer network

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Embodiment Construction

[0028] Architecture

[0029] Message identification function: P2P traffic identification technology based on application layer data detection is to extract P2P application layer data (ie P2P load) through protocol analysis and restoration technology, and determine whether it belongs to P2P by analyzing the protocol characteristic value contained in P2P load. application. Therefore, this type of method is also called Deep Packet Inspection (DPI). In the deep data packet detection technology, the feature library is established by extracting features from the specific P2P protocol and the load of the corresponding P2P system. For the real-time network flow passing through, the pattern matching algorithm is used to judge whether it contains the feature string in the feature library. If the feature matching is successful, the network flow is P2P data. The message identification part of the present invention uses DPI scanning technology to identify the hash search message and som...

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Abstract

The invention aims to provide an ares protocol analysis system based on a peer-to-peer network, and a realization method thereof. The problem that now P2P flow becomes the burden of the network can be solved by deploying a P2P cache server, and a protocol identification system in a cache server architecture prevents the problems of high power consumption, instability, low identification efficiency and the like of the traditional protocol analysis system. According to hash searching as well as the size and the message characteristic word of an application layer message of some interactive messages, the message is identified with high efficiency, then the {source address, download resource number} information of a hash searching request message is analyzed and extracted and sent to an indexserver, simultaneously the corresponding hash searching request message is copied and cached in a queue so as to wait the returned node list information of the index server, and finally a hash searching return result message is constructed to an ares client of the peer-to-peer network according to the information returned by the index server.

Description

technical field [0001] The invention is a protocol analysis system for specific network services of Ares (ARES), which is mainly used to solve the problem of protocol analysis of Ares network messages, and then serves for P2P cache systems, belonging to the field of peer-to-peer networks. Background technique [0002] In recent years, the rapid development of P2P applications has enriched the content of the Internet, but the explosive growth of traffic and unlimited bandwidth occupation have made P2P traffic a major burden on the network, and even caused network congestion, affecting and reducing other services. performance. According to relevant statistics, so far, P2P business accounts for more than 80% of all broadband data throughput, among which Ares network service accounts for a large proportion of P2P business. [0003] The development of Ares began in 2002, originally operating on the Gnutella network. Ares started out as a Gnutella client and was rewritten in lat...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L29/06
Inventor 王汝传赵丹韩志杰李致远徐鹤邵星蒋峥峥
Owner NANJING UNIV OF POSTS & TELECOMM
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