Rep[orting level[;eventguid_or_name[;eventguid_or_name[;. Optional. The level may be N or V or any combination of E, W, I, ...

Rep[orting] level[;eventguid_or_name[;eventguid_or_name[;...]]

Optional. The level may be N or V or any combination of E, W, I, C, D, and P.
The optional list of event guids or names is a list of items to be excluded
from the output when the message matches the level.  If the level is N then the
list contains items to be displayed even though reporting is off.  If reporting
is not specified then the default is EWP.

Level
N - Display nothing
E - Display error messages
W - Display warning messages
I - Display information messages
C - Display custom messages
D - Display DataFlow messages
P - Display progress messages
V - Display all messages