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SDN traffic dynamic allocation method and system

A technology of traffic dynamics and distribution methods, applied in the Internet field, can solve problems such as unbalanced traffic demand, reduce bandwidth utilization, etc., achieve automatic load balancing, reduce packet loss rate and jitter delay, and achieve the effects of real-time network data

Active Publication Date: 2022-02-15
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 present invention relates to a method and system for dynamically distributing SDN traffic, which obtains the average value of traffic data in a certain period of time at the downlink port of an SDN switch; judges whether the average value of the traffic data exceeds the system preset threshold M, and returns to S00 if not exceeded, and returns to S00 if exceeded Then execute the next step; according to the speed limit mechanism, the device under the SDN switch sends the openflow flow table flow table and the flow table associated meter table to perform speed limit operations. The present invention realizes the separation of control and forwarding in the traditional physical network based on the SDN technology. Through the open programming interface and centralized network control, the traffic is reasonably limited and allocated, and the dynamic bandwidth allocation service is provided under the principle of ensuring bandwidth utilization and user fairness.

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 Patents(China)
IPC IPC(8): H04L43/0894H04L43/16H04L47/125H04L47/22H04L47/2416H04L47/70
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