Finally, after all the waiting and poking around there is now an official guide for using a Nexus 9300 as HW-VTEP for NSX. The recommended NX-OS release is: 7.0(3)I6(1) or later in same main release The supported VMware NSX release is: 6.3.3 and later on the same main release Here is the Link to the guide: https://www.cisco.com/c/en/us/products/collateral/switches/nexus-9000-series-switches/white-paper-c11-740091.html#_Toc502975411 I hope i have some time in the coming days to deploy it in my lab and test it. But after a first overview the guide look pretty forward.