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Power Over Ethernet (PoE/PoE+) Operation
PoE Event Log Messages
“Warning” PoE Event-Log Messages
Message Meaning
W < MM/DD/YY > < HH:MM:SS > chassis Message header, with severity, date, system time, and
system module type. For more information on Event Log
operation, including severity indicators, refer to “Using the
Event Log for Troubleshooting Switch Problems” on page C-
27“.
Slot <slot-id > POE usage has exceeded
Indicates that POE usage in the indicated slot has exceeded
threshold of < 1 - 99 >%
the configured threshold for the module, as specified by the
last execution of the power threshold or power slot < slot-
id > threshold command. (Note that the switch also
generates an SNMP trap for this event.)
Port <port-id > PD Denied power due to There is insufficient power available to power the PD on the
insufficient power allocation.
indicated port and the port does not have sufficient PoE
priority to take power from another active PoE port.
Port <port-id > PD Invalid Signature The switch has detected a non-802.3af-compliant or non-
indication
802.3at-compliant device on the indicated port. This
message appears for all non-802.3af devices connected to
the port, such as other switches, PC-NICs, etc.
Port <port-id > PD MPS Absent indication The switch no longer detects a device on < port-id >. The
device may have been disconnected, powered down, or
stopped functioning.
Port <port-id > PD Other Fault indication There is a problem with the PSE connected to the port.
Port <port-id > PD Over Current The PD connected to < port-id > has requested more than
indication
15.4 watts of power. This may indicate a short-circuit or
other problem in the PD.
50v Power Supply is faulted.
Internal power supply has faulted.
Failures:<num-failures>
50v Power Supply is OK. Failures:
Internal power supply is now OK.
<num-failures>
FET bad on port <port-id>
External FET (Field Effect Transistor) on the port has gone
bad and cannot deliver power.
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