VC Flexfabric 10/24 to Juniper EX4300 10Gb Trunking Not Working

[vger433]

We have a c7000 chassis with VC FlexFabric 10/24 modules attempting to connect to a Juniper EX4300 SFP+ 10Gb modules running image 14.x.  The blades in the c7000 are all running VMware 6.5 and so have been following one of cookbooks to establish VLAN tunneling to support the ESX VLAN'd environments.  Basic Enet connectivity and FC connectivity on other chassis modules are working fine, however whenever I change the Juniper port from access to trunk mode, I immediately loose connectivity to the ESX management.  Have tried many iterations of VC server profiles, SUS's, making the ESX mgt IP part of or not part of native VLAN, and various Ethernet Network schemes, but it always seems to come back to enabling the trunking on the switch kills everything.  I have sucessfully mated VC with other switch vendors in the past, but this is my first whack at Juniper, so does anyone know of some special sauce necessary to make this work?