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Caching method of ICN (Information-Centric Networking) based on SDN

A caching and content caching technology, applied in the Internet field, can solve problems such as inflexible control and low efficiency of ICN caching, and achieve the effect of matching and improving utilization

Inactive Publication Date: 2016-07-20
GUANGDONG POLYTECHNIC NORMAL UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to propose a brand-new ICN cache idea under the fusion framework of SDN and ICN, which better solves the problems of low ICN cache efficiency and inflexible control

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  • Caching method of ICN (Information-Centric Networking) based on SDN
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  • Caching method of ICN (Information-Centric Networking) based on SDN

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Embodiment Construction

[0014] specific implementation method

[0015] The schematic diagram of the implementation framework of the present invention is as figure 1 shown.

[0016] Step1: The SDN control plane perceives the ICN data packets passing through the switch under the controller for the first time;

[0017] Step2: Hand over the controller to complete the generation of the cache method. During the generation of the cache method, such as figure 2 As shown, two aspects of work are mainly completed, and the specific implementation methods are as follows:

[0018] (1) Determine where to place the content. In the same controller, the location of content includes two strategies, one is the method of determining the content cache community; the other is the method of determining the content cache node in the community.

[0019] The method of determining the content cache community: in the same controller, first sort the communities from large to small according to the importance of the communit...

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Abstract

The invention discloses a caching method of an ICN (Information-Centric Networking) based on an SDN, and belongs to the technical field of the Internet. The method is based on a caching mechanism of the ICN (Information-Centric Networking) of the SDN (software defined network). In the ICN, each network node has a storage function; network resources and network states are sensed through an SDN control plane; and cache placement and cache replacement are differentially realized in a whole network range through application of complex network community thoughts. The caching mechanism provided by the invention comprises two parts: a content cache placement mechanism, wherein in the mechanism, ICN data packets determine cache communities of nodes according to the community importance degree of communities to which the ICN data packets belong, and the popularity of to-be-cached contents, and in the same community, cache nodes are determined according to the node community importance degree and the popularity degree of the contents; and a cache content replacement mechanism, wherein in the mechanism, replacement contents are determined according to the node community importance degree of the nodes and the popularity degree of content objects. According to the method, the problems of low caching efficiency and inflexible control of the ICN can be solved well.

Description

technical field [0001] The invention belongs to the technical field of Internet. technical background [0002] According to Cisco (Cisco) statistics, global network traffic has increased by 4 times in the past 5 years. From 2012 to 2017, global network traffic will continue to grow at a compound annual growth rate of 23%. And with the continuous emergence of new applications (such as the Internet of Things model, cloud computing model), traffic generation and transmission methods will also undergo fundamental changes. Most of this traffic will come from user-driven content acquisition apps. [0003] In order to adapt to the transformation of Internet applications from the end-to-end communication mode driven by the sender to the mass content acquisition mode driven by the receiver, and at the same time enhance the network's support for security, service quality, mobility, scalability, etc., the researchers In recent years, a new type of information-centric network archite...

Claims

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Application Information

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IPC IPC(8): H04L29/08
CPCH04L67/568
Inventor 蔡君
Owner GUANGDONG POLYTECHNIC NORMAL UNIV
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