This read-write integer from 0 to 22222, defined in thousands of bits per second and defaulting to 7000, sets the maximum output payload bandwidth allowed on this Ethernet port, with the Common Controller enforcing that the sum across all Ethernet ports does not exceed the system maximum and noting the 10BaseT cap is 11560. It lets an administrator cap how much traffic a given port or VLAN can push downstream. For example, an operator provisioning a business-class VLAN might raise this value above the 7000 default to guarantee more throughput for that customer.