As businesses move more toward cloud computing, one important factor for success is adopting multi-tenant software-defined networking (SDN) solutions in data centers. Hyper-V Network Virtualization (HNV) is a key enabler for a multi-tenant SDN solution and is essential for implementing a hybrid cloud environment where tenants can bring not only their own IPs, but their entire network topology since the virtualized networks are abstracted from the underlying fabric network. Network virtualization in general and Hyper-V Network Virtualization in particular are relatively new concepts. Unlike server virtualization, which is a mature, widely-understood technology, network virtualization still lacks this kind of broad familiarity.

随着企业更多地转向云计算，成功的一个重要因素是在数据中心采用多租户软件定义的网络（SDN）解决方案。Hyper-V网络虚拟化（HNV）是多租户SDN解决方案的关键推动因素，对实施混合云环境至关重要，租户不仅可以带来自己的IP，还可以带来整个网络拓扑结构，因为虚拟化的网络是从底层结构网络中抽象出来的。一般来说，网络虚拟化，特别是Hyper-V网络虚拟化是比较新的概念。与服务器虚拟化不同，它是一种成熟的、被广泛理解的技术，网络虚拟化仍然缺乏这种广泛的熟悉度。