How to prevent the server down message in a clustered environment

When bringing down a cluster node the server will broadcast to all connected user that the server is going down.
While this is a useful informational message in smaller environments it is often not desired in a cluster environment because a node can brought down at any time without interrupting services.
Sending a broadcast is a user interruption and does not matter at all becauses the services the user is using will continue to run on another node.
How to prevent the server down message in a clustered environment

An enhancement request has been made to disable server down broadcast message.
A possible workaround is to create a file shutdown.ncf and place it in SYS:\SYSTEM which will be executed automatically before a server is going down.
To prevent the broadcast when going down add this line to the file:
SET Disable Broadcast Notifications Process=ON

As this will disable all broadcast messages including possibly useful messages and warnings you need to add the following line to your autoexec.ncf to allow broadcasting messages whne the server is up:
SET Disable Broadcast Notifications Process=OFF.

Formerly known as TID# 10091867