Viewing the global PoE power status of the switch
Syntax:
Displays the switch's global PoE power status, including:
Pre-standard Detect
Shows whether PoE for pre-802.3af-standard powered devices is enabled on the switch. (Default: Off; shows On when PoE for pre-802.3af-standard powered devices has been enabled.)
Operational Status
Indicates whether PoE power is available on the switch. (Default: On; shows Off if PoE power is not available. Shows Faulty if internal or external PoE power is oversubscribed or faulty.)
Usage Threshold (%)
Lists the configured percentage of available PoE power provisioning the switch must exceed to generate a usage notice in the form of an Event Log message and an SNMP trap. If this event is followed by a drop in power provisioning below the threshold, the switch generates another SNMP trap and Event Log message. Event Log messages are also sent to any optionally configured debug destinations. (Default: 80%)
Total Available Power
Lists the maximum PoE wattage available to provision active PoE ports on the switch. This is the amount of usable power for PDs.
Total Failover Power
Lists the amount of PoE power available in the event of a single power supply failure. This is the amount of power the switch can maintain without dropping any PDs.
Total Redundancy Power
Indicates the amount of PoE power held in reserve for redundancy in case of a power supply failure.
Total Remaining Power
The amount of PoE power still available.
brief
Displays PoE information for each port. See Viewing PoE status on all ports.
<
port-list
>Displays PoE information for the ports in port-list. See Viewing the PoE status on specific ports.
The show power-over-ethernet
displays
data similar to that shown in Output for the show power-over-ethernet command.
Output for the show power-over-ethernet command
HP Switch(config)# show power-over-ethernet Status and Counters - System Power Status Pre-standard Detect : On System Power Status : No redundancy PoE Power Status : No redundancy Chassis power-over-ethernet Total Available Power : 600 W Total Failover Power : 300 W Total Redundancy Power : 0 W Total Used Power : 9 W +/- 6W Total Remaining Power : 591 W Internal Power 1 300W/POE /Connected. 2 300W/POE /Connected. 3 Not Connected. 4 Not Connected. External Power EPS1 /Not Connected. EPS2 /Not Connected.
Viewing PoE status on all ports
Syntax:
show power-over-ethernet brief
Displays the port power status:
PoE Port Lists all PoE-capable ports on the switch. Power Enable Shows Yes for ports enabled to support PoE (the default) and No for ports on which PoE is disabled. Power Priority Lists the power priority (Low, High, and Critical) configured on ports enabled for PoE. (For more information on this topic, see Configuring PoE operation.) Alloc by Displays how PoE is allocated (usage, class, value). Alloc Power The maximum amount of PoE power allocated for that port (expressed in watts).Default: 17 watts for PoE; 33 watts for PoE+. Actual Power The power actually being used on that port. Configured Type If configured, shows the user-specified identifier for the port. If not configured, this field is empty. Detection Status
Searching: The port is trying to detect a PD connection.
Delivering: The port is delivering power to a PD.
Disabled: On the indicated port, either PoE support is disabled or PoE power is enabled but the PoE module does not have enough power available to supply the port's power needs.
Fault: The switch detects a problem with the connected PD.
Other Fault: The switch has detected an internal fault that prevents it from supplying power on that port.
Power Class Shows the 802.3af power class of the PD detected on the indicated port. Classes include:
0: 0.44 to 12.95 watts can be drawn by the PD. Default class.
1: 0.44 to 3.84 watts
2: 3.84 to 6.49 watts
3: 6.49 to 12.95 watts
4: For PoE+; up to 25.5 watts can be drawn by the PD
The show power-over-ethernet brief
displays
this output:
Output for the show power-over-ethernet brief command
HP Switch (config)# show power-over-ethernet brief Status and Counters - System Power Status System Power Status : No redundancy PoE Power Status : No redundancy Available: 600 W Used: 9 W Remaining: 591 W Module A Power Available: 408 W Used: 9 W Remaining: 399 W POE | Power Power Alloc Alloc Actual Configured Detection Power Port | Enable Priority By Power Power Type Status Class ----- + ------- --------- ----- ------ ------ ----------- ---------- ---- A1 | Yes low usage 17 W 0.0 W Searching 0 A2 | Yes low usage 17 W 0.0 W Searching 0 A3 | Yes low usage 17 W 0.0 W Searching 0 A4 | Yes low usage 17 W 0.0 W Searching 0 A5 | Yes low usage 17 W 0.0 W Searching 0 A6 | Yes low usage 17 W 8.4 W Delivering 2 A7 | Yes low usage 17 W 0.0 W Searching 0 A8 | Yes low usage 17 W 0.0 W Searching 0 A9 | Yes low usage 17 W 0.0 W Searching 0
You can also show the PoE information by slot:
Viewing the PoE status on specific ports
Syntax:
show power-over-ethernet <
port-list
>Displays the following PoE status and statistics (since the last reboot) for each port in <
port-list
>:
Power Enable Shows Yes for ports enabled to support PoE (the default) and No for ports on which PoE is disabled. For ports on which power is disabled, this is the only field displayed by
show power-over-ethernet
.port-list
Priority Lists the power priority (Low, High, and Critical) configured on ports enabled for PoE. (For more on this topic, see Configuring PoE operation.)
Allocate by How PoE is allocated (usage, class, value).
Detection Status
Searching: The port is trying to detect a PD connection.
Delivering: The port is delivering power to a PD.
Disabled: On the indicated port, either PoE support is disabled or PoE power is enabled but the PoE module does not have enough power available to supply the port's power needs.
Fault: The switch detects a problem with the connected PD.
Other Fault: The switch has detected an internal fault that prevents it from supplying power on that port.
Over Current Cnt Shows the number of times a connected PD has attempted to draw more than 15.4 watts for PoE or 24.5 watts for PoE+. Each occurrence generates an Event Log message.
Power Denied Cnt Shows the number of times PDs requesting power on the port have been denied because of insufficient power available. Each occurrence generates an Event Log message.
Voltage The total voltage, in volts, being delivered to PDs.
Power The total power, in watts, being delivered to PDs.
LLDP Detect Port is enabled or disabled for allocating PoE power, based on the link-partner's capabilities via LLDP.
Configured Type If configured, shows the user-specified identifier for the port. If not configured, the field is empty.
Value The maximum amount of PoE power allocated for that port (expressed in watts). Default: 17 watts for PoE; 33 watts for PoE+
Power Class Shows the power class of the PD detected on the indicated port. Classes include:
0: 0.44 to 12.95 watts
1: 0.44 to 3.84 watts
2: 3.84 to 6.49 watts
3: 6.49 to 12.95 watts
4: For PoE+; up to 25.5 watts can be drawn by the PD
MPS Absent Cnt Shows the number of times a detected PD has no longer requested power from the port. Each occurrence generates an Event Log message. ("MPS" refers to the "maintenance power signature.")
Short Cnt Shows the number of times the switch provided insufficient current to a connected PD.
Current The total current, in mA, being delivered to PDs.
If you want to view the PoE status of ports A6
and A7, you would use show power-over-ethernet A6-A7
to
display the data:
Output for the show power-over-ethernet <port-list
>
command
HP Switch (config)# show power-over-ethernet slot A6-A7 Status and Counters - Port Power Status for port A6 Power Enable : Yes LLDP Detect : enabled Priority : low Configured Type : AllocateBy : value Value : 17 W Detection Status : Delivering Power Class : 2 Over Current Cnt :0 MPS Absent Cnt : 0 Power Denied Cnt :0 Short Cnt : 0 Voltage : 55.1 V Current : 154 mA Power : 8.4 W Status and Counters - Port Power Status for port A7 Power Enable : Yes LLDP Detect : disabled Priority : low Configured Type : AllocateBy : value Value : 17 W Detection Status : Searching Power Class : 0 Over Current Cnt :0 MPS Absent Cnt : 0 Power Denied Cnt :0 Short Cnt : 0 Voltage : 0 V Current : 0 mA Power : 0 W