If you want to use the SR-IOV feature with OpenContrail or Neutron OVS, your environment must meet the following prerequisites:

  • Intel Virtualization Technology for Directed I/O (VT-d) and Active State Power Management (ASPM) must be supported and enabled in BIOS
  • Physical NIC with Virtual Function (VF) driver installed Enable ASPM (Active State Power Management) of PCI Devices in BIOS. If required, upgrade BIOS to see ASPM option.