The number of errored frame seconds that must occur for this
event to be triggered.
If hh3cDot3OamErrFrameSecsSummaryThreshold frame errors occur
within a window of hh3cDot3OamErrFrameSecsSummaryWindow (in tenths
of seconds), an Event Notification OAMPDU should be generated
with an Errored Frame Seconds Summary Event TLV indicating the
threshold has been crossed in this window.