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Software-hardware mixed virtual network customizing system based on SDN

A virtual network and customized system technology, applied in the field of network virtualization, can solve the problems of limited SDN switches, inability to realize packet loss rate and delay simulation, and great influence of topology connection, etc., to achieve strong function expansion and improve authenticity , good flexibility

Active Publication Date: 2018-09-14
NANJING UNIV OF SCI & TECH
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Problems solved by technology

A common method is to divide the ports of an SDN physical switch, so that some ports belong to a certain virtual switch and some ports belong to another virtual switch; the method of dividing ports makes the simulated virtual SDN switch very limited, and the virtual SDN switch The topological connection of the network is greatly affected by the connection of the physical switch, and the simulation of the packet loss rate and delay cannot be realized

Method used

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  • Software-hardware mixed virtual network customizing system based on SDN
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  • Software-hardware mixed virtual network customizing system based on SDN

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Embodiment

[0034] An SDN-based software and hardware hybrid virtual network customization system, including an SDN physical switch; a visual interaction module for constructing a virtual network topology; a controller for constructing flow entries according to a virtual network topology and actual physical connections; A link simulation module that captures, parses and processes according to the virtual network topology.

[0035] The visualized interactive module uses Web technology, accessed through a browser, and can support cross-platform use. The visual interaction module is developed using html5, and the D3.js library is used for interface rendering and data binding.

[0036] Such as Figure 4 As shown, the functions of the visual interaction module include reading and saving configuration files, displaying the virtual network topology map and performing automatic layout, supporting the addition of switches in a drag-and-drop manner, and supporting the position adjustment of the ne...

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Abstract

The invention discloses a software-hardware mixed virtual network customizing system based on a SDN. The system comprises a SDN physical switch; a visual interaction module for constructing virtual network topology; a controller for constructing a flow entry according to the virtual network topology and actual physical connection; and a link simulation module for capturing, analyzing and processing according to the virtual network topology. Through the system disclosed by the invention, one SDN physical switch can be virtualized as multiple switches, the truth of a simulation experiment is improved, the speed of constructing the SDN physical experiment environment is accelerated, the cost is saved, and the constructed network has the features of being strong in function extensibility and good in flexibility.

Description

technical field [0001] The invention relates to network virtualization technology, in particular to an SDN-based software and hardware hybrid virtual network customization system. Background technique [0002] Mininet is currently the most popular SDN simulation experiment platform. It can quickly build an SDN network, including host nodes, switch nodes and controllers. However, the SDN network built by Mininet is completely virtualized and does not use real SDN switches. It truly shows the real experimental test situation of the SDN network. Because SDN physical switches are expensive, building an environment using SDN physical switches will result in a huge amount of overhead and also consume a lot of time. [0003] Network virtualization technology can bring many advantages to IT enterprises, including rapid configuration of network resources, lower operating costs, and improved network visibility, policies, and business processes. A common method is to divide the ports...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/931
CPCH04L41/00H04L41/08H04L41/12H04L41/14H04L41/22H04L49/70
Inventor 魏松杰孙鑫赵茹东王佳贺
Owner NANJING UNIV OF SCI & TECH
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