The reason for the most recent incrementing
of lapbFlowStateChanges. A DM or DISC frame
generated to initiate link set-up does not
alter this object. When the MIB-II object
ifOperStatus does not have a value of
testing, there exists a correlation between
this object and ifOperStatus. IfOperStatus
will have a value of up when this object
contains: abmEntered, abmeEntered,
abmReset, or abmeReset. IfOperStatus will
have a value of down when this object has a
value of notStarted, or dmReceived through
n2Timeout. There is no correlation when
this object has the value other.