This read-create Integer32, in milliwatts, sets the maximum inline power wattage allowed on a port, valid between 1000 and 15400 for 802.3af or 30000 for 802.3at, and can only be set once the port's power control has been enabled. Admins raise this limit for ports powering high-draw devices like PTZ cameras and lower it for basic devices to better manage the shared power budget across the switch. For example, setting this to 30000 on a port destined for an 802.3at PTZ camera reserves enough wattage for that device's peak draw.