Impact of management data placement in NFV service coordinated across multiple datacenters and WANs

As network function virtualization (NFV) technologies have emerged, some standardization bodies such as the ETSI have advanced standardization activities on their functional blocks and interfaces. However, several issues such as where virtual network configuration information should be placed or how virtual network configuration among Virtualized Infrastructure Managers (VIMs) should be handled have not been standardized yet. This paper proposes several candidates to address these issues, and discusses their advantages and disadvantages from various viewpoints such as security.