The Protection Mode property is the only Oracle Data Guard broker configuration property that you can change by using the Geographic Edition maintenance commands.
You cannot use the Geographic Edition software to modify other Oracle Data Guard broker properties in the configuration, such as the DelayMins, MaxFailure, MaxConnections, and NetTimeout properties. You must adjust these properties manually by using the Oracle Data Guard broker command, or by modifying the appropriate database parameters that are held in the spfile server parameter file or the init${SID}.ora file through SQL*Plus.
For example, if you change the standby_type property with the Geographic Edition software, this change does not convert the configuration between the physical and snapshot standby states. Therefore, you must always set the value of the standby_type property to a value that matches the standby state that the database currently has configured. Otherwise, the configuration will experience probe and validate errors.