Steady Network Service Design for Seamless Inter-cloud VM Migration

The ability to move virtual machines between physical hosts is a powerful tool that virtualization provides to guarantee an on demand, scalable and survivable networking such as the Cloud. This Virtual Machine (VM) migration can be handled seamlessly when a VM is moved between physical machines belonging to the same data center. However, seamless inter-Cloud VM migration (WAN migrations) cannot be guaranteed, mainly for today's delay-sensitive video streaming applications. We propose in this paper, a hybrid virtual network to transparently migrate large volume virtual machines between data centers. Our proposed network service is designed using control theory concepts. We propose also a Lyapunov-based controller to prove the hybrid migration network stability.