A keepalive (KA) is a message sent by one device to another to check that the link between the two is operating, or to prevent the link from being broken. == Description == Once a TCP connection has been established, that connection is defined to be valid until one side closes it.
A keepalive (KA) is a message sent by one device to another to check that the link between the two is operating, or to prevent the link from being broken. == Description == Once a TCP connection has been established, that connection is defined to be valid until one side closes it.
Source: Wikipedia "Keepalive" · CC BY-SA 4.0
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