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SDN traffic dynamic allocation method and system

A technology of dynamic flow and distribution method, applied in the Internet field, can solve problems such as reducing bandwidth utilization, unbalanced flow demand, etc., and achieve the effect of reducing packet loss rate and jitter delay, automatic load balancing, and real-time network data.

Active Publication Date: 2020-11-06
UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The egress traffic provided by the traditional traffic distribution system is unbalanced with the user's traffic demand. Although a certain degree of fairness among users is guaranteed in the process of traffic distribution, the utilization rate of bandwidth is reduced.

Method used

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  • SDN traffic dynamic allocation method and system
  • SDN traffic dynamic allocation method and system
  • SDN traffic dynamic allocation method and system

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Embodiment Construction

[0026] The technical solution of the present invention will be further described in detail below in conjunction with specific examples, but the protection scope of the present invention is not limited to the following description.

[0027] refer to figure 1 As shown, a method for dynamic distribution of SDN traffic, the method includes:

[0028] S00: Obtain the average value of traffic data of the downlink port of the SDN switch within a certain period of time;

[0029] S10: Determine whether the average value of the flow data exceeds the system preset threshold M, if not, return to S00, and if it exceeds, execute the next step;

[0030] S20: According to the speed limit mechanism, the openflow flow table flow table and the flow table associated meter table delivered by the device under the SDN switch are subjected to a speed limit operation.

[0031] Among them, the speed limit mechanism is:

[0032] Define the total traffic data of VIP hosts as x, the total traffic data o...

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Abstract

The invention relates to an SDN flow dynamic allocation method and system. The method comprises the steps of obtaining a flow data average value of a downlink port of an SDN switch in a certain time period; judging whether the average value of the flow data exceeds a preset threshold value M of the system or not, if not, returning to S00, and if yes, executing the next step; according to a speed limiting mechanism, issuing an openflow flow table and a flow table associated meter table to equipment under the SDN switch to carry out speed limiting operation. On the basis of the SDN technology, control and forwarding of a traditional physical network are separated, reasonable speed-limiting distribution is carried out on flow through an open programming interface and centralized network control, and dynamic bandwidth distribution service is provided under the principle that the bandwidth utilization rate and user fairness are guaranteed.

Description

technical field [0001] The invention relates to the field of the Internet, in particular to a method and system for dynamic distribution of SDN traffic. Background technique [0002] The egress traffic provided by the traditional traffic distribution system is unbalanced with the user's traffic demand. Although a certain degree of fairness among users is guaranteed in the process of traffic distribution, the utilization rate of bandwidth is reduced. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a method and system for dynamically distributing SDN traffic. Based on the SDN technology, the traditional physical network realizes separation of control and forwarding, through an open programming interface and centralized network control. Reasonable speed limit allocation for traffic, under the principle of ensuring bandwidth utilization and user fairness, provides dynamic bandwidth allocation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/803H04L12/815H04L12/853H04L12/911H04L47/22H04L47/2416
CPCH04L43/0894H04L43/16H04L47/125H04L47/225H04L47/2416H04L47/70
Inventor 宋超罗燕鹏张浩刘宏达
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA