Check the PoE status on an S series switch


Command for displaying PoE status of S series switches:

<HUAWEI> display poe information
PSE Information of slot 0:
    User Set Max Power(mW)     : 739200     //Set the maximum output power. Use the maximum power by default.
    POE Power Supply(mW)       : 369600     //PoE power supply, which is determined by the PoE power supply configured on the device.
    Available Total Power(mW)  : 369600     //Total available power.
    Total Power Consumption(mW): 0          //Total output power.     
    Power Peak Value(mW)       : 0          //Peak output power.  
    Power-Management Mode      : auto
    Power High Inrush          : disable

<HUAWEI> display poe power interface gigabitethernet 0/0/3
Port PD power(mW)           : 3710          //Output power of the interface.                                           
Port PD class               : 2             //Classes of PDs. The system classifies PDs based on their maximum power.                                           
Port PD reference power(mW) : 7000          //Reference power of the PD.                                   
Port user set max power(mW) : 15400         //Set the maximum output power of the port.                                    
Port PD peak power(mW)      : 3816          //Peak power of the PDs connected to the port.                                          
Port PD average power(mW)   : 3487          //Average power of the PDs connected to the port.    

Other related questions:
Enable and disable PoE on an S series switch
Enable or disable the PoE function on S series switches:

1. By default, the PoE function is enabled on an interface
2. Enable or disable PoE power supply.
[HUAWEI]interface gigabitethernet 1/0/0
[HUAWEI-GigabitEthernet1/0/0]undo poe enable  //Disable PoE power supply.
[HUAWEI-GigabitEthernet1/0/0]poe enable       //Enable PoE power supply.

The downlink electrical interfaces of PoE switches support PoE power supply, with up to 30 W power on each interface. The maximum power supply distance is 100 m.
Only ES0D0G48VA00 (S7700)/LE0DG48VEA00 (S9300) cards of modular switches (S7700/S9700/S9300/S12700) support PoE power supply.

If the switch connects to 48 V standard PoE powered devices but cannot negotiate power supply capabilities with the devices, you can run poe force-power on the interfaces to forcibly power on the devices.

How to check the status of AP on the S switch?
Sx7 serials and S5720HI , we can input commands display ap all。For example�? display ap all All AP(s) information: Normal[4],Fault[0],Commit-failed[0],Committing[0],Config[0],Download[0] Config-failed[0],Standby[0],Type-not-match[0],Ver-mismatch[0] ------------------------------------------------------------------------------ AP AP AP Profile AP AP /Region ID Type MAC ID State Sysname ------------------------------------------------------------------------------ 0 AP6010DN-AGN dcd2-fc21-5d40 0/0 normal ap-0 1 AP6010DN-AGN dcd2-fc9a-2110 0/0 normal ap-1 2 AP6010DN-AGN 1047-80ac-cc60 0/0 normal ap-2 3 AP6010DN-AGN fc48-ef2d-3b00 0/0 normal ap-3 ------------------------------------------------------------------------------ Total number: 4,printed: 4 AP State has 4 types: - normal:this is correct state - type-not-match:the AP type is mismatch - fault:AP faulty�?if AP is offline, it is also this state. - config :AP initializes the configuration - config-failed:AP initialization failed - download:AP version is updating and load the system software. - committing:WLAN service is being sutmited. - commit-failed:WLAN service is submited failed. - standby:backup AC state - ver-mismatch:AP and AC's version is mismatched

How is PoE of an S series switch compatible with non-standard PDs
PoE of an S series switch is compatible with non-standard PDs as follows: When a non-standard PD is connected to a switch, the switch cannot detect proper resistance and identify the PD. 1. You can enable the compatibility check function so that the switch can detect PDs that do not comply with 802.3af or 802.3at standard and provide power to these non-standard PDs. - Run the poe legacy enable command in the interface view to enable a switch to check compatibility of the non-standard PDs. 2. If a PD supporting 48 V PoE cannot be powered on, you can run the poe force-power command in the interface view to forcibly power on the PD. 3. Some non-standard PDs support low current in compliance with 802.3af, but not high current in compliance with 802.3at. - Run the poe af-inrush enable command in the system view to modify the PoE power supply mode to low current in compliance with 802.3af. - After the configuration, remove and then reinstall the non-standard PD so that the PD can be powered on normally. - The configuration takes effect on the switch or some slots, which may affect 802.3at-compliant PDs powered on at high current. Exercise caution when running this command. For details, see Tell You About PoE.

PoE power module of an S series switch
Configuration and power of PoE power modules on S series switches are as follows: The fixed series switches that have PWR or PWH in their names support PoE. 1. You can use Hardware Query Tool to query the configuration and power of PoE power modules on S series switches. 2. Among modular switches (S7700, S9700, S9300, and S12700), only the S7700 and S9300 support the PoE function. If a switch is running V200R006 or a later version, it allows 800 W AC, 2200 W AC, and 2200 W DC power modules in PoE power slots. If the input voltage is 220 V AC, the PoE power is 800 W or 2200 W. If the input voltage is 110 V AC, the PoE power is 400 W or 1100 W (the S7712 and S9312 do not support 110 V AC). Only ES0D0G48VA00 cards of the S7700 and LE0DG48VEA00 cards of the S9300 support the PoE function. Dual power modules with the same power can be installed to provide power for PDs in load balancing mode. The total power is the sum of two power modules. The number of PoE interfaces supported by a switch is the result of dividing the available PoE power by 15.4 W (802.3af), 30 W (802.3at), or 60 W (802.3bt). Generally, a 250 W power module supports eight interfaces of 15.4 W. A 500 W power module supports 24 interfaces of 15.4 W and 12 interfaces of 30 W. For details, see Tell You About PoE.

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