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A mixed distributed overlapped network device and its service registration and finding method

An overlapping network, distributed technology, applied in data exchange through path configuration, special data processing applications, instruments, etc., can solve problems such as inability to support complex content/semantic queries, increasing Chord maintenance costs, and complex Chord maintenance mechanisms. Achieve the effect of improving the quality of distributed networks

Inactive Publication Date: 2008-02-13
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] The biggest problem with the Chord structure is that the maintenance mechanism of Chord is relatively complicated, especially the network fluctuation (Churn) caused by the frequent addition and exit of nodes will greatly increase the maintenance cost of Chord
Another problem Chord faces is that Chord only supports exact keyword matching queries, and cannot support complex queries such as content / semantics

Method used

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  • A mixed distributed overlapped network device and its service registration and finding method
  • A mixed distributed overlapped network device and its service registration and finding method
  • A mixed distributed overlapped network device and its service registration and finding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] This embodiment is the overall architecture of the hybrid distributed overlay network device of the present invention, as shown in FIG. 1 . The basic hardware system used in this embodiment is the Internet including a local area network and a wide area network, that is, a distributed network can be realized on the basis of the existing Internet without hardware changes. Service requesters and service providers who request services and use services are the users on the Internet. The key of the present invention lies in the three-layer logical network constructed in the Internet, which is the physical network layer, the friend group network layer and the positioning network layer in sequence from bottom to top.

[0059] The physical network layer is based on regions and is basically the same as the existing network. The physical network layer is the current actual Internet network topology divided according to geographical location. The friend group network layer is a p...

Embodiment 2

[0120] This embodiment is a service registration method for a hybrid distributed overlay network, including: a service provider, a friend group leader, and a service resolver, and three logical network layers in the Internet: a physical network layer based on a region, a network based on Flooding peer-to-peer network query technology supports fuzzy query friend group network layer, adopts peer-to-peer network query technology based on distributed hash table positioning network, and its service registration steps are:

[0121] The service provider in the physical network layer requests registration with the service resolver in the positioning network layer with the service provided by itself;

[0122] The service parser first asks whether the request registration is the leader of the friend group, if "yes", then registers the service in the positioning network layer, if "no", then enters the next step;

[0123] The parsing server analyzes the service and detects whether the ser...

Embodiment 3

[0128] The present embodiment is a search method for a hybrid distributed overlay network, including: a service requester, a service provider, a friend group leader, and a service resolver requiring services and using services, and three logical network layers in the Internet: The region-based physical network layer, the peer-to-peer network query technology based on flooding to support the friend group network layer of fuzzy query, and the positioning network based on the distributed hash table-based peer-to-peer network query technology, the search steps are:

[0129] The service requester makes a service request and sends it to the service resolver;

[0130] The service resolver classifies the requested service into the service type that the positioning network layer can recognize;

[0131] In the location network layer, the friend group leader responsible for such services is located according to the location network search algorithm, thereby locating the friend group prov...

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Abstract

A device, and a service registration and searching method of a mixed distribution overlay network are disclosed. The invention comprises an internet, a service requester, a service provider, a physical network layer, a fuzzy query supported friend group network layer, which is based on the flooding peer-to-peer network searching art and a positioning network, which applies the peer-to-peer network searching art based on a distributed hash table. The invention also comprises that the service provider in the physical network layer registers the service for a friend group in the friend group network layer, the friend group registers to a friend group leader in the positioning network layer, the friend group leader registers at a service parser in the positioning network layer, the service requester of the service parser provides information for the service provider, so as to set up a connection between the service requester and the service provider. The invention uses the established positioning network layer and the friend group network layer to organically combine a flooding discovering and random forwarding mechanism, which is based on complete randomization with a keyword registration and searching based method. The invention enhances distributed network quality and provides very favorable support for an upper service.

Description

technical field [0001] The invention relates to a hybrid distributed overlay network device and its service registration and search method, which is a network-based electronic digital processing method, a peer-to-peer network query technology based on a distributed hash table and a flooding peer-to-peer The method of web query technology. Background technique [0002] The Internet under the traditional C / S (Client / Server, Client / Server) mode has many shortcomings, which cannot meet the requirements of modern life for the network. It is mainly reflected in the following aspects: First, under the traditional C / S mode, with the continuous increase of nodes, the load on the server will become heavier and heavier, which will easily form the bottleneck of the system; secondly, the Internet under the C / S mode is completely Rely on the central point, that is, the server. If there is no server, the network will lose its meaning, that is, there will be a single point of failure probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/28G06F17/30
Inventor 罗洪斌林福宏吴恒奎张宏科秦雅娟杨冬张莹王泼
Owner BEIJING JIAOTONG UNIV
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