Operation Manual – PoEH3C S9500 Series Routing Switches Chapter 1 PoE Configuration1-3Caution:z When the actual power exceeds the set value, the port with a lower priority stopssupplying power so that the port with a higher priority can supply power.z To ensure power supply to the "last PD" and provide redundant power to prevent atransient rise of board power consumption, by default, a buffer of 19 W is reservedon the chip. For example, if you set the maximum PoE power for the board to 400 W,a power of 381 W only can be guaranteed to respond quickly for stable powersupply.z Currently, you can set a PoE power ranging from 37 W to 740 W on the PoE boardsof the S9500 series routing switches. By default, the power for a PoE board is 740W.1.2 PoE ConfigurationThe S9500 series can automatically detect any connected device that needs remotepower supply and feeds power to this device.z Depending on your actual network requirement, you can set the maximum PoEpower totally supplied by the switch through the command line.z You can set the maximum PoE power supplied by a card through the commandline.z You can also control the PoE on each PoE port independently through thecommand line. The control includes: enabling/disabling the PoE feature, andsetting the maximum PoE power, the PoE mode and the PoE priority on the port.1.2.1 PoE ConfigurationFollow these steps to configure PoE on the S9500 series switches:To do… Use the command… RemarksEnter system view system-view —Configure the maximumpower of switchpoe power max-valuemax-valueOptional4,500 W by defaultEnable PoE on a board poe enable slot slot-num RequiredDisabled by defaultEnable the board to detectthe compatibility of the PDconnected to itpoe legacy enable slotslot-numOptionalBy default, the board doesnot detect thecompatibility of the PDconnected to it.