The principle of this idea is to have a command that force all sessions that are already connected in one instance of a RAC to reconnect to the other and also place that instance in restricted mode. The main objective for this would be to start a maintenance in just one of the nodes at a time. I know that TAF would handle reconnections (if this is configured) and know that placing an instance on restriced session is an option too, but I what I would like to force all sessions from an instance to reconnect to the other without shutting down the instance. That would be more smoothly for maintenance.
Regards.