3.3.3 Keep-alive timeoutperiod

Determine a keep-alive timeout period for data communications. During data communications, JP1/DH - Server clients and servers send and receive bidirectional keep-alive packets to confirm their active connection with each other. If a client or server does not receive any keep-alive packet after the timeout period has elapsed, it assumes that the connection is no longer active and suspends the data communications. It might take some time to send and receive keep-alive packets to and from locations outside of your country or with poor communication line quality. In this case, a short timeout period can often cause interruption of data communications. You can specify the separate timeout periods (in seconds) for both clients and server. The following table describes the default settings.

Table 3‒5: Default settings for the keep-alive timeout period

Setting item	Default value
Client	180 seconds
Server	180 seconds

The keep-alive timeout period is specified in environment setup after JP1/DH - Server installation.

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