Intel X722 Adapter using i40evf Driver : Virtual Interfaces fail to function when too few vCPUs are assigned to the VM.

Updated -

Environment

  • Red Hat Enterprise Linux 7 Update 3
  • Intel X722 adapter using the i40evf driver

Issue

  • When a VM has less than four vCPUs, only the 'virtio_net'(eth0) addresses will respond to network traffic and the 'i40evf' interfaces do not work.

Resolution

  • Work around : ...

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