US Patent 10263832 Physical interface to virtual interface fault propagation

In some examples, a computing device includes one or more processors and a physical interface device (IFD) connected to one or more of the processors. One or more of the processors are configured to detect a change in physical link status for a physical link in a network interface card, receive a list of active virtual machines associated with the physical link, and transmit a virtual IFD status notification message to the active virtual machines of virtual IFDs impacted by the physical link status change, the virtual IFD status notification message identifying the physical link status change.