HP 2910AL - Manual (Page 271)

Power Over Ethernet (PoE+) Operation
Displaying the Global PoE Status
Displaying PoE Status on All Ports
Syntax: show power-over-ethernet brief
Displays the following port power status:
• 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.
• LLDP Detect: Displays if the port is enabled or disabled for
allocating PoE power based on the link-partner’s capabilities
via LLDP
(enabled, disabled). Not all PoE devices support
LLDP, so PoE information is ignored by default.
• Priority: Lists the power priority (Low, High, and Critical)
configured on ports enabled for PoE. (For more on this topic,
refer to the power command description under “Configuring
PoE Operation” on page 11-7.)
• Alloc by: Displays how PoE is allocated (usage, class, value)
• PoE Value: The maximum amount of PoE power allocated for
that port (expressed in watts).
• Configured Type: If configured, shows the user-specified
identifier for the port. If not configured, the 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 PSE does not have
enough power available to supply the port’s power needs.
– Fault: The switch detects a problem with the connected PD.
• Power Class: Shows the 802.3at physical layer power class of
the PD detected on the indicated port. Classes include:
0: Depends on cable 3: 15.4 watts
type and PoE 4: reserved—can be power
architecture value beyond the class 3 limit.
1: 4 watts
Depends on cable type and
2: 7 watts
PoE architecture.
• Other fault: The switch has detected an internal fault that
prevents it from supplying power on that port.
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