Hyper-v R2 Network Virtualization - ms_netwnv Component not showing up

We are a VMWare workshop but interested in the new windows 2012 R2 Hyper-v.  So I've set up a lab with two desktop PC running Windows 2012 R2 to test the Network Virtualization feature.  However when trying to use Powershell to enable it on the NIC, I received an error (see below). 

Enable-NetAdapterBinding Ethernet -ComponentID ms_netwnv

Enable-NetAdapterBinding : No matching MSFT_NetAdapterBindingSettingData objects found by CIM query for instances of
the ROOT/StandardCimv2/MSFT_NetAdapterBindingSettingData class on the  CIM server: SELECT * FROM
MSFT_NetAdapterBindingSettingData  WHERE ((Name LIKE 'Ethernet')) AND ((ComponentID LIKE 'ms[_]netwnv')). Verify query
parameters and retry.
At line:1 char:1
+ Enable-NetAdapterBinding Ethernet -ComponentID ms_netwnv
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (MSFT_NetAdapterBindingSettingData:String) [Enable-NetAdapterBinding], C
   imJobException
    + FullyQualifiedErrorId : CmdletizationQuery_NotFound,Enable-NetAdapterBinding

Further, I do not see ms_netwnv as a component of my NIC.  Is there some configuration that I'm missing? 

Thanks a lot!