Research on the security of virtual network with Xen platform

As the next generation of networking computing, cloud computing can offer both software and hardware as on-demand resources and services over the Internet and therefore reduce the capital expenditure and operational expenditure for IT consumers. In order to realize these purposes, however, there are still some challenges to be solved. With no doubts, security is the most concerned issue. This is why security must be integrated into every aspect of cloud computing. Virtualization is the key technology to build a cloud computing platform, as a result, virtualization security is one of the significant concerns in cloud computing. In this paper, we focus on the security of virtual network in virtualized environment. First, we research Xen platform which is the most popular hypervisor used in the industry and then the security problems that exist in a virtual network are discussed and analysed based on Xen platform. Finally this paper presents a multi-layer virtual network framework aimed to control the inter-communication among virtual machines deployed in physical machines with higher security. © 2013 Asian Network for Scientific Information.