A network policy model for virtualized systems

Modern hypervisors offer the ability to build virtual networks between virtual machines. These networks are very useful in both personal and professional activities since they offer the same opportunities as physical networks, but in a much lower cost in terms of hardware and time. On the other hand, these networks are facing many security threats due to the absence of rigourous security policies that protect the sensitive resources of the network. In this paper, we propose a multilevel security policy model for these networks, this policy covers not only network operations, but also operations related to the management of the virtual architecture.