Microsoft has published a whitepaper that they co-wrote with Cisco called Windows Server 2012 Hyper – V
Extensible Switch and Cisco Nexus 1000V Series Switches.
Microsoft and Cisco are providing enterprises and data centers with the combined power of the Hyper-V Extensible Switch and the Cisco networking technology to deliver advanced networking features to virtual environments running on Windows Server 2012. Customers using Windows Server 2012 Hyper -V can choose the Cisco solution that best suits their needs: either the software-based Nexus 1000V Series Switches, or the hardware-based UCS VM-FEX solution, which offers simplified management and near
bare-metal input/output (I/O) performance.
This paper provides an overview of the Windows Server 2012 Hyper-V Extensible Switch and the Cisco technologies. It provides a general discussion of the key benefits for customers in using these technologies together, including the ease of adding extensions, migrating switches and virtual machines, and working in a unified management environment. It also provides at-a-glance descriptions of common scenarios.