Towards Seamless Cross-Vendor Inter-Datacenter Network Policy Migration

It is common that many enterprises tend to operate several datacenters applying virtualization technologies from different vendors. However, for virtual machine migration across different vendors, currently there is no feasible method to transfer the corresponding network policies as well. In this paper, we show a cross-vendor network policy adaptor (CVNPA), which is able to cooperate with today´s cloud computing platforms and to provide seamless network policy migration across virtual switches from different vendors. We experiment CVNPA in our simulated cloud computing environment with OpenStack as their cloud computing platform. The results show that CVNPA can transfer corresponding network policy over heterogeneous virtual switches efficiently and automatically during the process of VM migration with little overhead.