This object is a pointer that links an interface table entry to the RowStatus variable of the specific component (such as a card or port) that the interface represents on a Nortel Magellan Passport system. An admin uses it to trace from a generic interface entry back to the exact hardware or logical component whose status controls that interface's availability. For a serial interface backed by a particular port component, ifRowPointer would resolve to that port's own status row rather than to some unrelated component.