Content routing system of network layer based on software defined networking (SDN) technology and content-centric networking (CCN) frame and working mode thereof

A network layer and content technology, applied in the future network field, can solve problems such as single-point failure performance, bottlenecks, and non-content routing, and achieve the effect of improving content transmission efficiency and reducing the load on communication links

Active Publication Date: 2016-10-26
UNIV OF SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] There have been some studies on the integration of SDN and CCN, such as the C-flow system based on openflow proposed by J Suh, and the ICN-OMF system proposed by Hyunwoo L, but the idea is basically to plan the path of content routing on the controller , the controller needs to know the specific location of all content in advance, so it is not a real content routing, and there are single points of failure and performance bottlenecks

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  • Content routing system of network layer based on software defined networking (SDN) technology and content-centric networking (CCN) frame and working mode thereof
  • Content routing system of network layer based on software defined networking (SDN) technology and content-centric networking (CCN) frame and working mode thereof
  • Content routing system of network layer based on software defined networking (SDN) technology and content-centric networking (CCN) frame and working mode thereof

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Embodiment Construction

[0055] In this embodiment, a network layer content routing system based on SDN technology and CCN framework is used to provide m users with content publishing, content request and content response services,

[0056] Such as figure 1 As shown, the content routing system includes: a POF controller and n content routers; n content routers are connected into a tree topology according to the constraint rule 1, and the constraint rule 1 is: the tree topology has 1 network layer, k-2 An intermediate layer and a leaf node layer. In this implementation case, taking a three-layer tree topology as an example, it has a network layer, an intermediate layer, and a leaf node layer. The content routers in the network layer are composed together with the graph , the content router in the middle layer has one and only one parent node in the network layer, and the content routers with the same parent node form a connected graph, the content router in the leaf node layer has one and only one pare...

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Abstract

The present invention discloses a content routing system of a network layer based on an SDN technology and a CCN frame and a working mode thereof. The system is characterized by comprising a protocol oblivious forwarding (POF) controller and n content routers, wherein the POF controller comprises a link discovery module and a topology management module, and the content routers are used for operating a POFSwitch forwarding process and a POF-CCN routing process. According to the present invention, a hard coupling relationship of the content names and the positions thereof is removed in the system network layer, thereby being able to directly route to the content sources according to the content names, and realizing a content obtaining function of the network layer.

Description

technical field [0001] The invention belongs to the technical field of future networks, and specifically relates to a content routing system and a working method of a network layer integrating SDN (Software Defined Network) and CCN (Content Centric Network). Background technique [0002] With the rapid development of economy and technology, Internet technology has undergone rapid changes in recent decades. One of the main manifestations is that Internet traffic has shown explosive growth in type and scale, and the traditional Internet with IP protocol as its core is gradually exposed. To cope with various drawbacks in the efficient transmission of multimedia content, the future network is a kind of theory proposed to solve the shortcomings of the traditional Internet in content distribution and transmission. At present, the future network mainly has two architecture assumptions, one is Information-Centric Networking (ICN) is a general term for multiple types of network archi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/721H04L12/741H04L12/753H04L45/74
CPCH04L45/32H04L45/48H04L45/745
Inventor 王雷王格王好齐
Owner UNIV OF SCI & TECH OF CHINA
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