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SDN load balancing method based on fuzzy logic

A load balancing and fuzzy logic technology, applied in electrical components, transmission systems, etc., can solve the problem of no strategy to implement load balancing algorithm, not comprehensive, etc., to achieve the effect of server load balancing, reducing response time, and improving system performance

Inactive Publication Date: 2019-03-08
TIANJIN CHENGJIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these algorithms are not comprehensive when considering the parameters affecting load balancing. The load balancing algorithm is relatively simple, and there is no unified strategy to implement the load balancing algorithm.

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  • SDN load balancing method based on fuzzy logic
  • SDN load balancing method based on fuzzy logic
  • SDN load balancing method based on fuzzy logic

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Embodiment Construction

[0034] The present invention will be further described below through specific embodiments and accompanying drawings. The embodiments of the present invention are for better understanding of the present invention by those skilled in the art, and do not limit the present invention in any way.

[0035] The present invention is an SDN load balancing method based on fuzzy logic, which adopts the SDN network architecture supporting the OpenFlow protocol, mainly expands the existing data forwarding control in the OpenDayLight controller, and controls the forwarding according to the load status of the virtual server in the OpenFlow network, In this way, server load balancing in the network is realized. Because the OpenFlow switch provides a unified interface and data forwarding function for the controller, the controller performs unified control over the forwarding of the OpenFlow flow table. The switch regularly collects the running status of the virtual server, and feeds back the r...

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Abstract

The invention discloses an SDN load balancing method based on fuzzy logic. The method mainly comprises the following steps of firstly, initializing an OpenFlow network; secondly, obtaining a server state by an improved fuzzy logic balancing algorithm: collecting server state information by a load balancing module through an SDN switch, taking the CPU utilization rate, the memory utilization rate,the I / O utilization rate and the session rate as input variables of the fuzzy logic, defining membership functions, obtaining corresponding fuzzy grades through improved fuzzy reasoning, and judging the server state through a fuzzy matrix; and then, calculating a server load value, and calculating an OpenFlow network load balancing parameter delta; and finally, setting a load balancing adjustmentthreshold value. The problem of load balancing of a server cluster is solved by applying a characteristic that an SDN control plane is separated from a data plane; and the problems that traditional load balancing hardware is high in price and poor in expansibility and reliability are solved.

Description

technical field [0001] The invention belongs to the fields of network optimization and network measurement, and in particular relates to an SDN load balancing method based on fuzzy logic. Background technique [0002] In recent years, with the continuous rise and development of technologies such as Internet +, e-commerce and big data, the number of network users has increased proportionally, and the scale and traffic of the Internet have grown explosively. At the same time, the rapid development of virtualization and cloud computing technology is also a huge challenge to the network's bearing capacity. In order to meet the needs of network services, many Internet companies usually use load balancing technology to realize reasonable utilization of resources and provide high-quality and highly reliable services. Due to the defects of the traditional Internet itself, the existing load balancing equipment is expensive and lacks sufficient scalability and flexibility. [0003] ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/1008H04L67/101H04L67/1001
Inventor 李国燕刘毅李凯心
Owner TIANJIN CHENGJIAN UNIV