This parameter controls the Interface Filling Rate (IFR), which governs how completely the system fills each AEI port with traffic before moving to the next port. Network engineers tune this to optimize port load distribution—lower values spread traffic across more ports to reduce contention, while higher values consolidate traffic to minimize power consumption. An IFR value of 80% means the system tries to keep each AEI port at 80% utilization, balancing between efficient use of links and avoiding overload on any single port.