n is an integer in the range 10—65,636 (seconds). The default value is 1,200.
ClientReconnectDuration is the number of seconds an Application Server (ECP client) should keep trying to reestablish a connection before giving up or declaring the connection failed. The Application Server (ECP client) continues reconnection attempts at intervals scheduled by the ClientReconnectInterval until the full ClientReconnectDuration expires. The default value 1200 is equivalent to 20 minutes.
Changing This Parameter
On the ECP Settings page of the Management Portal (System Administration > Configuration > Connectivity > ECP Settings), in the This System as an ECP Application Server column, edit Time to wait for recovery.
Instead of using the Management Portal, you can change ClientReconnectDuration in the Config.ECP class (as described in the class reference) or by editing the CPF in a text editor (as described in the Editing the Active CPF section of the “Introduction to the Configuration Parameter File” chapter in this book).