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TCP heartbeating
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Gauge (equipment, processes, or other network elements) is normal, generally use a scheduled send simple communications package, if in each other's response was not received within the period specified, the gauge has been. Used to detect abnormal TCP disconnect. Base because the server cannot determine if the client that is online, the server cannot distinguish between the client is idle for a long time, or have you dropped. So-called heartbeat packets that the client periodically send simple messages to the server telling it I'm still in it. Code is sent every few minutes a regular information to a server-side service receives a reply with fixed information. If the server-side client information is not received within a few minutes, depending on
dannku
2016-08-23
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