用于虚拟化数据中心网络的动态带宽高效BCube拓扑
Dynamic Bandwidth-Efficient BCube Topologies for Virtualized Data Center Networks
摘要：
网络虚拟化使计算网络和数据中心（DC）提供商能够使用在物理计算机上运行的软件以灵活的方式管理其网络资源。在本文中，我们解决了现有的问题与经典的DC网络拓扑结构在虚拟化环境中，并研究了一组DC网络拓扑结构的能力，提供动态结构，根据服务水平所需的活动流量在虚拟DC网络。特别是，我们提出了三个主要的方法来修改一个经典的BCube拓扑结构作为拓扑基准，并调查其相关的结构特征和最大可实现的互连带宽为不同的路由方案。最后，我们运行了一个广泛的模拟程序，以检查所提出的修改后的拓扑结构的性能，在模拟环境中，考虑故障分析和交通拥堵。我们的模拟实验，这是一致的，我们的设计目标，表明效率的建议修改后的拓扑结构相比，经典的BCube的带宽可用性和故障弹性。
英文摘要：
Network virtualization enables computing networks and data center (DC) providers to manage their networking resources in a flexible manner using software running on physical computers. In this paper, we address the existing issues with the classic DC network topologies in virtualized environment, and investigate a set of DC network topologies with the capability of providing dynamic structures according to the service-level required by the active traffic in a virtual DC network. In particular, we propose three main approaches to modify the structure of a classic BCube topology as a topology benchmark, and investigate their associated structural features and maximum achievable interconnected bandwidth for different routing scenarios. Finally, we run an extensive simulation program to check the performance of the proposed modified topologies in a simulation environment which considers failure analysis and also traffic congestion. Our simulation experiments, which are consistent to our design goals, show the efficiency of the proposed modified topologies comparing to the classic BCube in terms of bandwidth availability and failure resiliency.
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