Implementation and Operation of User Defined Network on IaaS Clouds using Layer 3 Overlay

Server virtualization technology achieves ”Infrastructure as a Service (IaaS)” model services. Anyone can use virtual server resource easily without preparing computer hardware, thus IaaS environments provides multiple operational benefits to users. Therefore, today various types of users, not only personal users but also enterprise users, deploy virtual resources on IaaS cloud. On the other hand, many enterprises users still have their own environments and operate them by themselves because there are two problems when they migrate the services from physical facilities to IaaS clouds. The first problem is that services are bound to IP addresses. The second problem is lack of flexibility in network design and management on IaaS clouds. To solve these problems, we propose an operation model to migrate on-premise services to IaaS clouds using LISP and VXLAN. Using our proposed method, users can migrate IP addresses and services among IaaS clouds. In this paper, we proposed new migration method of IP address on several IaaS clouds and implemented the system using LISP and VXLAN software on Linux systems. Then we evaluate performance of our system and present a operation on