The value of sysUpTime on the most recent occasion
at which any one or more of this entity's counters
suffered a discontinuity. The relevant counters are the
specific instances associated with this entity of
any Counter32, or Counter64 object contained
in the 'jnxMplsLdpEntityStatsTable'. If no such
discontinuities have occurred since the last
re-initialization of the local management
subsystem, then this object contains a zero
value.