The value of h3cSysReloadEntity indicates an entry in entPhysicalTable,
which is the physical entity to be reloaded.
If ENTITY-MIB is not supported,the value for this object is the unit ID for XRN devices ,
0 for non-XRN device which has only one mainboard,
the board number for non-XRN device which have several mainboards.
Each entity has only one row in h3cSysReloadScheduleTable.