what is the correct way to disable the Broadcast Notify "Server xy is
down" to Clients when a Cluster Node goes down?

I implement a new Cluster and reboot sometimes the Nodes or reload
eDirectory/NCP (they are not in Production yet) and didn't like to have
all the Time Calls "Whats wrong with the Server?".

Is there a Option to prevent Clients to authenticate to these Nodes but
the Nodes would be fully functional?

Any Hint welcome!