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This parameter relates to the HTTP1.1 “keep-alive-feature”. This means that if, within this time span, new data arrives over the network from the partner, the ICM attempts to keep the connection open once it has been established. If, for the existing connection, there is no further communication within the specified time period, the ICM terminates the connection. This avoids having to keep establishing and terminating costly network connections.


Work area

Internet Communication Manager, SAP Web Dispatcher


Integer value

Standard value

60 (seconds)

Dynamically changeable


Value Range and Syntax

You can set values between -1 and 9999999 seconds. If you set the parameter to -1, you switch the timeout fully off. In this case the connection is never closed by the ICM.

It makes no sense to set the value to 0, as the ICM would then close the connection immediately.


Once the timeout interval has expired the user context in the work process is not closed. The user context is closed only after the time interval specified in the profile parameter rdisp/plugin_auto_logout. If rdisp/plugin_auto_logout = 0 is set, the context in the work process is not deleted at all.


You can override the standard value of the timeout for each service using the icm/server_port_<xx> parameter.

More Information

Note the following documentation associated with this parameter:

Timeout Options for ICM and Web Dispatcher