Method for realizing peer-to-peer network caching system based on Ares protocol

A peer-to-peer network and caching system technology, applied in the network field, can solve problems such as reducing user experience, achieve good operating conditions, good scalability, and occupy less system resources.

Inactive Publication Date: 2011-07-20
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

The so-called restriction is to limit or intercept the P2P traffic at the network egress through the identification of the P2P protocol, but this method will greatly reduce the user experience in the network

Method used

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  • Method for realizing peer-to-peer network caching system based on Ares protocol
  • Method for realizing peer-to-peer network caching system based on Ares protocol
  • Method for realizing peer-to-peer network caching system based on Ares protocol

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Embodiment Construction

[0027] Architecture

[0028] Protocol analyzer message identification function: P2P traffic identification technology based on application layer data detection uses protocol analysis and restoration technology to extract P2P application layer data, that is, P2P load, and judge whether it belongs to P2P applications. Therefore, this type of method is also called Deep Packet Inspection (DPI). The message identification part of the present invention uses DPI scanning technology to identify the hash search message and some related interactive messages in the Ares specific P2P network service according to the fixed bit feature word.

[0029] Protocol analyzer function to construct messages: according to the message with the resource node list information returned by the index server cached in the first-in-first-out queue and the hash search request message cached in the separate link hash table, construct the returned result of the hash search message. After the message is succe...

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Abstract

The invention discloses a peer-to-peer network caching system based on an Ares protocol and a method for realizing the system. The system comprises a protocol analyzer, an index server and a caching server, wherein the protocol analyzer is used for recognizing a Hash search request message according to a deep data packet detection technology, analyzing the message, extracting a source address, downloading resource identification information and transmitting the information to the index server; the index server is used for returning information such as a searched Intranet node list owning a resource, the list address of the cache server and the like; the protocol analyzer is used for configuring a Hash search return result message according to the returned information and transmitting the result to an Ares client, so that a peer-to-peer network user can download resources from an Intranet node and the caching server; and if needed file information is not inquired in the index server, the protocol analyzer is informed of not processing the Hash search request message of the user, the caching server is informed of downloading a file to be shared by an Intranet user, and an index service module is informed of updating the information after the file is downloaded.

Description

technical field [0001] The invention relates to a cache system of the Ares peer-to-peer network, which is mainly used for alleviating the huge pressure brought by the peer-to-peer network traffic to the backbone network, and belongs to the peer-to-peer network field. Background technique [0002] P2P network (Peer-to-Peer network) is a peer-to-peer network, which is the product of the combination of distributed systems and computer networks, and works in a peer-to-peer mode. Its essence is to break the traditional C / S mode (Client / Server mode), that is, the client / server mode, so that all network members can enjoy the functions of freedom, equality and interconnection. They are both clients and servers. Can share files, send messages. [0003] Ares is a very good P2P file sharing system. It started in 2002 and started operating on the Gnutella network as a Gnutella client. It was rewritten at the end of 2002 and became the current Ares network. The current Ares network ado...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/08
Inventor 王汝传蒋华韩志杰李致远徐鹤邵星
Owner NANJING UNIV OF POSTS & TELECOMM
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