This read-create Unsigned32 holds the high-order 32 bits of the Shaper's Committed Information Rate (CIR), which is represented as a 64-bit value split across this object and its Lo counterpart. An administrator uses the Hi/Lo pair together to configure a committed rate that exceeds what a single 32-bit field could express, needed on high-speed flow points. For example, shaping a flow point's guaranteed rate to several gigabits per second requires setting both this Hi object and the corresponding Lo object to represent the full CIR value.