The two objects hpnicfDot3OamErrSymPeriodThresholdHi and
hpnicfDot3OamErrSymPeriodThresholdLo together form an unsigned
64-bit integer representing the number of symbol errors that
must occur within a given window to cause this event.
This is defined as
hpnicfDot3OamErrSymPeriodThreshold =
((2^32) * hpnicfDot3OamErrSymPeriodThresholdHi)
+ hpnicfDot3OamErrSymPeriodThresholdLo
If hpnicfDot3OamErrSymPeriodThreshold symbol errors occur within a
window of hpnicfDot3OamErrSymPeriodWindow symbols, an Event
Notification OAMPDU should be generated with an Errored Symbol
Period Event TLV indicating the threshold has been crossed in
this window.