This numeric value identifies which HP OpenView software component generated a given trap or event; it exists only inside OpenView trap varbinds and cannot be retrieved with a normal SNMP GET. Management stations parsing incoming OpenView traps use it to determine which internal OpenView process, such as network monitoring versus event correlation, raised a particular alert. For example, two different numeric values here would let an NMS distinguish an event raised by OpenView's netmon daemon from one raised by its correlation engine.