Network interface card switching for virtual networks

A computing device comprising:

• one or more hardware-based processors coupled to a memory device;
• a virtual network endpoint configured for execution by the one or more processors;
• a network interface card comprising a first hardware component and a second hardware component, wherein the first hardware component and the second hardware component provide separate packet input/output access to a physical network interface of the network interface card;
• and
• a virtual router configured for execution by the one or more processors to provide a virtual network for communications with the virtual execution endpoint,
• wherein the virtual execution endpoint is configured to output a request for a layer 2 address corresponding to a layer 3 address,
• wherein the virtual router is configured to send, to the virtual execution endpoint in response to the request, a layer 2 address configured for a first hardware component of a network interface card of the computing device, and
• wherein the virtual execution endpoint is configured to send, to the network interface card, outbound packets generated by the virtual execution endpoint, wherein the outbound packets have a destination layer 2 address that is the layer 2 address for the first hardware component.

A non-transitory computer-readable storage medium comprising instructions for causing one or more processors of a computing device to:

• output, by a virtual execution endpoint configured for execution by the one or more processors, a request for a layer 2 address corresponding to a layer 3 address;
• send, by a virtual router configured for execution by the computing device to provide a virtual network for communications with the virtual execution endpoint, to the virtual execution endpoint in response to the request, a layer 2 address configured for a first hardware component of a network interface card of the computing device,
• wherein the network interface card comprises a physical network interface, a first hardware component, and a second hardware component, and
• wherein the first hardware component and the second hardware component provide separate packet input/output access to a physical network interface of the network interface card;
• and
• send, by the virtual execution endpoint to the network interface card, outbound packets generated by the virtual execution endpoint, wherein the outbound packets have a destination layer 2 address that is the layer 2 address for the first hardware component.