Hi!
Yes! You are correct....
My CX-2 QDR HCA show a "~[ConnectX VPI - 10GigE / IB QDR,PCIe 2.0 5GT/s]"
10GigE means 10Gb IPoIB connection, not Ethernet.
That cause a misunderstand.
My exact question was can I use a 40Gb IPoIB connection on 4036 QDR IB switch with CX-3 MCX354A-FCBT and vSphere 5.5?