Software-defined network SDN flow monitoring and visualization system

Abstract

The invention relates to an SDN (Software Defined Network) flow monitoring and visualization system. The system comprises a flow acquisition module, a flow distribution module, a visualization moduleand a server, wherein the flow collection module is used for obtaining port flow data and host flow data of SDN switches of all partition machine rooms, and flow data of application flows. The flow distribution module performs speed limiting according to a speed limiting mechanism, and the strategy of the speed limiting mechanism is that the total flow data of the VIP host is defined as x, the total flow data of the non-VIP host is defined as y, when x+y>M, the non-VIP host is subjected to speed limiting, and y^=M-x; and the visualization module is used for obtaining the data in the database and visually displaying the data on three levels, so that the flow monitoring of the switch in the SDN system can be realized, and the flow speed limit control is realized, thereby realizing the maximum utilization of the flow.

Description

technical field [0001] The invention relates to the field of network traffic monitoring, in particular to a software-defined network SDN traffic monitoring and visualization system. Background technique [0002] SDN originated from the Clean Slate research project of Stanford University in 2006. In 2009, Professor Mckeown formally proposed the concept of SDN. Using the idea of ​​layering, SDN separates data from control. In the control layer, including logic centralization and programmable controller, it can grasp the global network information, which is convenient for operators and scientific researchers to manage and configure the network and deploy new protocols. In the data layer, there are dumb (dumb) switches (different from traditional Layer 2 switches, specifically referring to devices used to forward data). The switch only provides a simple data forwarding function, which can quickly process matching data packets to meet the increasing demand of traffic. An open...

AI Technical Summary

Problems solved by technology

[0003] For now, SDN still has some shortcomings. Under the traditional SDN system, the traffic distribution between different users is generally fixed, and the traffic distribution is carried out according to the broadband level opened by the user. During some peak hours of network usage, some The user's traffic has not reached its corresponding network speed, for example, a 200M wide user and a 50M wide user, in peak hours, the 50M wide user may have exceeded its network speed limit, while the 200M wide user is far from reach its corresponding network speed

Images