o  change confidence

    Generate when the underlying transport service detects that the
    connection's confidence variable has changed to the new value
    reported by the confidence parameter. This suggests a change in
    the connectivity between the outbound stream and the sink.
    Argument:

    confidence  Specifies the new transport confidence value.

    false       It is unlikely that a transmit operation would
                succeed under the current circumstances.

    true        It is likely that a transmit operation would
                succeed under the current circumstances.

 o  disconnect

    Generated each time the sink detects that an inbound stream
    connection has been closed. The disconnect can be caused by a
    management command, a sink disconnect, a network failure, or by
    receiving notice that the associated outbound stream entity has
    been shut down.  Arguments:

    disconnect  Identifies the cause of the disconnect.
    data

    reason      Specifies the Session Control layer reason for the
                disconnect.

    shutdown    Inbound stream disconnected because of a shutdown
    received    event.