| 摘要 |
<p>Systems and methods for determining an interval for the transmission of keep alive messages that will prevent a pinhole of a data network interface device from closing are driven by a module on a computing device. For example, a software client informs a network server of a first time interval, and the server uses the first time interval to sends communications to the computing device that trigger the computing device to send keep alive messages to the server. If the first time interval does not result in the pinhole closing, the module instructs the network server to messages to the computing device that trigger the computing device to send keep alive messages to the server according to a second, longer time interval. If use of the second time interval results in the pinhole closing, the module thereafter instructs the server to use the first time interval. If the second time interval also does not cause the pinhole to close, the module instructs the sever to use a third time interval that is longer than the second time interval. This process repeats until the pinhole ultimately closes, and then the last interval that did not cause the pinhole to close is selected for use.</p> |
