Specifies the duration to wait for a RTT operation
completion. The value of this object cannot be set to
a value which would specify a duration exceeding
rttMonCtrlAdminFrequency.
For connection oriented protocols, this may cause the
connection to be closed by the probe. Once closed, it
will be assumed that the connection reestablishment
will be performed. To prevent unwanted closure of
connections, be sure to set this value to a realistic
connection timeout.