This read-create Unsigned32 holds the higher-order bits of the Excess Information Rate (EIR) of a specific per-COS QoS Shaper on an access port, used together with the lower-order EIR object for larger excess rates. It matters only for unusually large excess allowances on a high-capacity access port's per-COS shaper that would overflow the low-order field alone. For example, an access port supporting several gigabits of excess burst allowance on a given COS would need a nonzero cmAccPortQosShaperEIRHi alongside the paired low-order EIR value.