This object indicates the types of messages generated
by the watch listed client.
There can be three types of messages.
'phase' - This value represents phase transition of a
wireless client. The various phases include
802.11, 8021x, dhcp etc.
'state' - This value represents a state transition of a
wireless client. The states could be association
request, authentication request etc. for 802.11
phase.
'normal' - This value represents an informational message
generated during 802.11 client's association to
the controller.