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System for distributing multi-field content based on P2P technique as well as corresponding method

A distribution system and content publishing technology, which is applied in store-and-forward switching systems, transmission systems, devices for branch offices to provide special services, etc., can solve the problems of difficult maintenance of all global domain states, achieve efficient and reliable maintenance, and high content distribution efficiency , Improve the effect of experience

Inactive Publication Date: 2008-09-03
INST OF ACOUSTICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] The purpose of the present invention is to overcome the defect that the distributed management in multiple domains makes it difficult to maintain the state of all global domains, thereby providing a multi-domain content distribution system and corresponding content publishing, downloading and searching methods

Method used

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  • System for distributing multi-field content based on P2P technique as well as corresponding method
  • System for distributing multi-field content based on P2P technique as well as corresponding method
  • System for distributing multi-field content based on P2P technique as well as corresponding method

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Embodiment Construction

[0059] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0060] P2P technology is the most widely used content distribution technology on the Internet. Distributed Hash Table (DHT for short) is an emerging direction of P2P technology. DHT is a Hash table jointly maintained by nodes distributed on the Internet. The key of this table is the identifier of a storage object, which is 160 bits long and is generally generated by the SHA-1 function. Each node will be assigned a sub-table and become the manager of this sub-table. The node not only stores this sub-table, but also stores information on how to access other sub-tables, that is, the routing table. The advantages of DHT are: first, there is no central server, relying on a distributed adaptive algorithm to process the joining and exit of nodes; second, the average hop count of the routing algorithm is O(log N), and the size of the routing table is a...

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Abstract

The invention discloses a multi-domain content distribution system based on P2P technology, comprising: an edge server, a content releasing terminal, a user terminal, an authentication center, a tracing server, an intelligent releasing terminal; also distributed Hash table and a content router; wherein, a field is divided according to the autonomous system of ISP. A field is composed of a content router, a tracing server and at least an edge server. The edge server, authentication center, tracing server are respectively connected with the content server. The user terminal, content releasing terminal and intelligent releasing terminal are directly and indirectly connected with the edge server. The content routers in different fields are connected by the distributed Hash table and connected with the authentication center. The edge routers in different fields are connected.

Description

technical field [0001] The present invention relates to a content distribution network, in particular to a multi-domain content distribution system based on P2P technology. Background technique [0002] Content distribution system, also known as content distribution network (Content Delivery Network or ContentDistribution Network, referred to as CDN), is a distributed content delivery platform based on the existing Internet. Its general system structure is as follows: Figure 12 As shown, it mainly consists of a server cluster (EdgeService Provider, ESP for short) 1201 and a manager 1203 distributed at the edge of the network. The content provider (Content Provider, CP for short) 1202 only needs to publish the content in the content source to the ESP 1201, and the user 1204 can obtain the content from the nearest ESP. In this way, the load of the content source can be distributed to each ESP, which not only reduces the pressure on the content source, but also improves the us...

Claims

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Application Information

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IPC IPC(8): H04L12/18H04L12/54H04L12/66H04L45/74
Inventor 唐晖赵志军谭红艳周旭林涛唐鼎
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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