Heads Up :
The post you are writing will appear in a public forum. Please ensure all content is appropriate for public consumption. Review the employee guidelines for the community here.
Were you able to get this resolved? I too was wondering if the Upstream switch (i.e. 3750) was handing PVLANs, if the PVLANs were trunked to the UCS as regular VLANs and the UCS was configured for disjoined L2 then vNICs would just carry the VLANs up...