基于OpenFlow的虚拟网络架构的设计与实现

现有应用中的网络架构种类繁多,造成网络结构复杂难以维护,而OpenFlow网络能有效地解决现有网络维护困难和设备臃肿的问题。本文在深入研究OpenFlow技术的基础上,设计并实现基于OpenFlow的虚拟网络架构,其分为4个层次:应用层、VTN(Virtual Terminal Network)虚拟平台、控制层和物理层,并重点介绍其核心部分VTN虚拟平台的实现。通过对吞吐量和丢包率的监控,验证了它可以整合不同的网络结构,实现网络资源的统一管理,提高网络兼容性,并具有较好的性能。

Design and Implementation of Virtual Network Infrastructure Based on OpenFlow

Bacause a variety of network infrastructures are in use, the network structures become more complex and hard to main- tain. OpenFlow network can effectively solve the problems, such as network equipments are bloated and networks are difficult to maintain. Based on the research of OpenFlow technology, this paper designs and implements a virtual network infrastructure based on OpenFlow protocol. It consists of four layers, namely, application layer, VTN virtualization platform, control layer and physical layer. And this paper highlights the implementation of VTN virtualization platform which is the most important part of this network infrastructure. At last, by monitoring the throughout and packets loss rate, this paper concludes that it can integrate dif- ferent network structure and implement unified management of network resources. And also, it can improve the network compati- bility. Furthermore, it has better performance than before.