Invention Grant
US09584449B2 Determining the status of a device through use of a publisher/subscriber interface 有权
通过使用发布者/订阅者界面来确定设备的状态

Determining the status of a device through use of a publisher/subscriber interface
Abstract:
A device for enabling a first computer network device to determine whether a second computer network device has an online status or an offline status includes a memory device with instructions for execution by a processor to: receive a request from the first computer network device for the status of the second computer network device; determine whether the second computer network device is online or offline; in response to a determination that the second computer network device is online, return a first network address to the first computer network device; and in response to a determination that the second computer network device is offline, return a second network address to the first computer network device, wherein the second network address is a known bad address that will not provide a response to the first computer network device.
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