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Method for searching related node subset on the basis of P2P

A node sub-node technology is applied in the field of finding network nodes, which can solve the problem of not solving the problem of querying related node sub-sets, and achieve the effect of overcoming single-point failure and communication bottleneck problems.

Inactive Publication Date: 2009-08-12
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of these schemes solves the problem of querying sub-sets of related nodes

Method used

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  • Method for searching related node subset on the basis of P2P
  • Method for searching related node subset on the basis of P2P
  • Method for searching related node subset on the basis of P2P

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Build a global music network:

[0084] Establish network field classifications according to the subject areas of user needs, for example: classify music into popular music and classic music. The format of the domain name is: musician.musiccategory.music. Such as: LiuHuan.Popular.Music or Liu Huan.Popular Music.Music.

[0085] Build a field classification network, singers, music-related companies, agents, consumers, fans, etc. join relevant virtual groups. All user computers are used as nodes to establish an overlay network of domains according to user domain names. The node ID is username@domain name, such as: Xiaoli@刘欣.popularmusic.music.

[0086] Suppose there is a user: Xiao Li is a fan of Liu Huan, and his node ID is Xiao Li@刘欢.popular music.music. The IP address of the computer used is 10.20.2.26;

[0087] Lao Wang is Liu Huan's manager, and his node ID is Lao Wang@刘欣.popularmusic.music. The IP address of the computer used is 10.88.5.15;

[0088] Lao Zhang i...

Embodiment 2

[0100] Build a global medical consultation network:

[0101] Classify diseases and establish related domain names. Doctors, patients, hospitals, pharmaceutical production and sales companies, medical equipment production and sales companies, etc. join the relevant virtual groups. All user computers establish an overlay network of realms by user domain name. The steps for a node to join and leave the overlay network are as shown in Embodiment 1.

[0102] Query example: Find all attributes of all TCM doctors who treat migraine, and their virtual group domain name: ChineseMedicalDoctor.Doctor;

[0103] The query statement of the SQL-like language is:

[0104] Select*from ChineseMedicalDoctor.Doctor.Medical whereexpert="Migraine";

Embodiment 3

[0106] Build a global e-commerce network:

[0107] Classify e-commerce business. Business providers, consumers, etc. join the relevant virtual groups. All user computers establish an overlay network of realms by user domain name. The steps for a node to join and leave the overlay network are as shown in Embodiment 1.

[0108] Example query: Find all attributes of all three-star hotels in Hangzhou. Its virtual group domain name: Zhejiang.China.Hotel.eComence;

[0109] The query statement of the SQL-like language is:

[0110] Select*from Zhejiang.China.Hotel.eComence where place="Hangzhou" and quality="3star";

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PUM

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Abstract

The invention relates to a method for searching related node subsets based on P2P, which comprises the following steps of: establishing network domain classification according to subject domains needed by users, constructing a domain classification network, and inquiring node subsets based on the domain classification network. The method is characterized in that the domain classification network is a P2P overlay network based on domains, and comprises the following concrete construction steps that: 1) an initial network node sets the content of a routing list thereof, and establishes a virtual group; 2) the node is added into the P2P overlay network; and 3) the node leaves the P2P overlay network. The method has the advantages that: the method adopts a comprehensive multifold virtual tree-type structural network and a randomly cached non-structural network to construct the P2P overlay network, adopts class SQL language to search related node subsets on the basis of the P2P overlay network, has the advantages of inquiring nodes in a large-scale network environment according to complicated conditions, solves the problems of single-point failure and communication bottleneck of centralized SIP application, and overcomes the disadvantages that other P2PSIP applications cannot inquire nodes according to the complicated conditions at the same time.

Description

technical field [0001] The present invention relates to a method for searching network nodes, in particular to a method for searching relevant node subsets based on P2P. Background technique [0002] With more and more computers connected to the Internet and more and more Internet users, Voice over IP (VoIP) and Instant Messaging (IM) are widely used. These communication systems can use the Session Initiation Protocol (SIP) protocol to establish connections between users. The key to SIP is to convert resources into IP addresses. Traditional SIP applications are based on the centralized proxy server method. This method has a single point of failure and uneven load. Equilibrium disadvantages. [0003] At present, there are many solutions using P2P technology to solve the above problems, such as SOSIMPLE based on DHT P2P technology (Bryan, A.D., Lowekamp, ​​B.B., Jennings, C., 2005, SOSIMPLE: A Serverless Standards-based P2P SIP Communication System, In: First International W...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/44H04L29/08
Inventor 黄理灿
Owner ZHEJIANG SCI-TECH UNIV
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