Port Management
PoE
Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4 191
10
• Class—Displays the class of the device, which indicates the maximum power level of
the device:
• Max Power Allocation—This field appears only if the Power Mode set in the PoE
Properties page is Power Limit. Displays the maximum amount of power permitted on
this port.
• Negotiated Power—Power allocated to device.
• Power Negotiation Protocol—Protocol determining the negotiated power.
STEP 4 Click Apply. The PoE settings for the port are written to the Running Configuration file.
Statistics
This page displays the power consumption trend, which is the average power consumption
over time. This is useful for monitoring and debugging of PoE behavior.
The device stores PoE port consumption values (in units of watts) over time. This enables
calculating and displaying the average PoE consumption over specified time of day/week/
month, and enables detecting trends. Information is provided for each interface and for the
device as a whole.
PoE consumption readings are taken every 1 minute. The daily, weekly and monthly statistics
are saved in flash memory, so that they are still available after reboot.
A sample's average PoE consumption per port/device is as follows:
Sum of all PoE consumption readings in a period / Number of minutes in the sampling
period.
Class Maximum Power Delivered by Device Port
0 30.0 watt
14.0 watt
27.0 watt
3 15.4 watt
4 30.0 watt
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