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A Routing Method Based on Content Attributes in Naming in Content-Centric Networks

A technology of content-centric network and content attributes, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problem of large communication expenses, achieve fast and efficient routing, easy deployment, and reduce overhead

Inactive Publication Date: 2018-08-14
INST OF ACOUSTICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The purpose of the present invention is to overcome the defect that the routing method of the CCN network in the prior art has relatively large communication expenses and is unfavorable for realization on a large-scale network, thereby providing a practical, adaptable and effective routing method

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  • A Routing Method Based on Content Attributes in Naming in Content-Centric Networks

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Embodiment Construction

[0038] The present invention will be further described now in conjunction with accompanying drawing.

[0039] Before the routing method of the present invention is described in detail, how to name content in the routing method of the present invention will be described first.

[0040]In the present invention, the name of the content object consists of four parts, as shown in Table 1, which are: Real-world Identity (Real-world Identity, RWI for short), Name (Name), Public Key (Public Key, PK for short) and attributes (Attribute). RWI is the original name of the content, Name is obtained by hashing the content itself, PK is obtained by hashing RWI and Name, and Attribute is some keywords describing the content, such as content type and content format.

[0041] Table 1

[0042] RWI

name

PK

Attribute

[0043] RWI is the name given by the content owner for the content. It is human-readable. Its structure is similar to that of the URL. It adopts a hierar...

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Abstract

The invention relates to a routing method realized on a basis of a content attribute part of a name in a content-centric networking. The method comprises the steps that a content consumer checks the name of a to-be-sent interest packet, and determines the content of the interest packet according to the information contained in the name of the interest packet; according to the attribute of the content and the distribution probabilities of the content in all areas, the content consumer sends the interest packet to an area with the highest content distribution probability; after receiving the interest packet, a node in the area checks the name of the received interest packet, and performs matching according to the name of the interest packet; and if getting no response, the content consumer sends the interest packet to another area with the second highest content distribution probability, and then the previous step is performed until the interest packet is sent successfully or an end condition is met.

Description

technical field [0001] The invention relates to the technical field of routing, in particular to a routing method implemented based on content attributes in naming in a content-centric network. Background technique [0002] With the development of the Internet, content retrieval and information acquisition have become the main trend of the Internet, and the defects in mobility, scalability, and security caused by the semantic overload of IP addresses in the traditional TCP / IP network architecture are gradually exposed. In response to this problem, the academic community generally believes that the naming and addressing architecture of the next generation Internet needs to be redesigned. Therefore, many future Internet research institutions have proposed Information-Centric Networking (ICN) architecture, also known as content-based network or name-based network, CCN (Content-Centric Networking), DONA (Data-Oriented Network Architecture ), PSIRP (Publish / Subscribe Internet Pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/701
Inventor 李唯源刘银龙周旭赵志军慈松
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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