An embodiment may include network controller circuitry to be included in a first host computer that includes a host processor to execute an operating system environment. The circuitry may initiate, at least in part, one or more checkpoints of, at least in part, one or more states associated with, at least in part, the operating system environment and network traffic between the first host computer and a second host computer. The circuitry also may coordinate, at least in part, respective execution, at least in part, of the one or more checkpoints with respective execution of one or more other respective checkpoints of the second host computer. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.