![Oksana Zybinskaya](https://www.starwindsoftware.com/blog/wp-content/uploads/2016/10/Ksu-150x150.png)
Software-Defined Networking (SDN) Stack in the Windows Server 2016
Windows Server 2016 enables building a Software-Defined Data Center (SDDC) with new layers of security and Azure-related approach for hosting business applications and infrastructure. The new Software-Defined Network (SDN) Stack provides dynamic security and hybrid flexibility by enforcing network policy in the Hyper-V Virtual Switch using the Azure Virtual Filtering Platform (VFP) Switch Extension. Instead of programming network configurations into a physical switch, the new Microsoft Network Controller delivers the network policy to the Hyper-V Hosts using the OVSDB protocol and is programmed into the VFP extension of the vSwitch by a Host Agent which enforces the policy.