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A software-defined information center network system

An information-centric network, software-defined technology, applied in the network field, can solve the problems of long interest packet response period of users, waste of control resources, and high performance requirements of controllers, so as to reduce computing resource overhead and improve response speed.

Active Publication Date: 2020-07-28
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This processing method has high performance requirements for the controller, and the user's interest packet response cycle is long. In addition, when other users request the same content, there is a high probability that the controller needs to recalculate the route, resulting in a waste of control resources.

Method used

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  • A software-defined information center network system
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  • A software-defined information center network system

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0043] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.

[0044] The embodiment of the present invention provides a software-defined information center network structure, which is transformed on the traditional information center network, adding a software-defined controller to the upper layer of the content router, and desig...

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Abstract

The invention discloses a software-defined information center network structure, including: a controller and a content router; the controller includes: an information receiving module, a publishing processing module, and a route publishing module; the content router includes: a first 2. Information subscription table, waiting interest table, content storage, forwarding information base. The invention utilizes the characteristic of the information center network to identify routes by name, combines the synergistic effect of the controller and the content router, reduces the cost of the controller's routing computing resources, and simultaneously improves the response speed of the user's interest packet request.

Description

technical field [0001] The invention relates to the field of network technology, in particular to a software-defined information center network structure. Background technique [0002] Information-Centric Network (ICN) is a new type of network architecture, in which network information is named, named as routing identifiers, network cache and other technologies to achieve efficient network content access. [0003] The content router (Content Router, CR) is a key part of the ICN, and the content router includes a content store (Content Store, CS), a waiting interest table (Pend Interest Table, PIT) and a forwarding information base (Forwarding Information Base, FIB). When an Interest packet requesting content arrives at the content router, it goes through the PIT, the CS table, and the FIB in sequence. PIT records the arrival port of the interest packet, and marks the unresponsed state of the interest packet; the CS table contains the data packets cached locally by the conte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/751H04L12/741H04L45/02H04L45/74
CPCH04L45/02H04L45/74
Inventor 赵敏武穆清白勇沈静凌申侯肖兰徐春秀胡耀
Owner BEIJING UNIV OF POSTS & TELECOMM