The minimum number of errors that must be observed
within the number of events specified by
usdFrDlcmiDceMonitoredEvents, to declare the interface down.
'error' is lack of receipt of a Status Enquiry within the
interval specified by usdFrDlcmiDcePollingInterval (T392).
Pertains to DCE/NNI operation only. This parameter can
be reconfigured only when the Frame Relay interface
is acting as a DCE or NNI.