Cisco 4500M User Manual

8-7
Software Configuration Guide—Release 12.2(25)EW
OL-6696-01
Chapter 8 Configuring Power over Ethernet
Fa3/12 auto off 0 0 n/a n/a
Fa3/13 auto off 0 0 n/a n/a
Fa3/14 auto off 0 0 n/a n/a
Fa3/15 auto off 0 0 n/a n/a
Fa3/16 auto off 0 0 n/a n/a
Fa3/17 auto off 0 0 n/a n/a
Fa3/18 auto off 0 0 n/a n/a
--------- ------ ---------- ---------- ---------- ------------------- -----
Totals: 10 on 117.5 104.6
Switch#
This example shows how to display the operational status for Fast Ethernet interface 4/1:
Switch#show power inline fa4/1
Available:677(w) Used:11(w) Remaining:666(w)
Interface Admin Oper Power(Watts) Device Class
From PS To Device
--------- ------ ---------- ---------- ---------- ------------------- -----
Fa4/1 auto on 11.2 10.0 Ieee PD 0
Interface AdminPowerMax AdminConsumption
(Watts) (Watts)
---------- --------------- --------------------
Fa4/1 15.4 10.0
Switch#
Displaying the PoE Consumed by a Module
The switch can measure the actual PoE consumption for an 802.3af-compliant PoE module, and it
displays the measured PoE in both the show power module and show power detail commands.
However, the switch cannot display the consumption of an individual interface on an 802.3af-compliant
PoE module, nor can it measure the actual PoE consumption for the WS-X4148-RJ45V module.
Therefore, for all PoE calculations, the PoE consumption on the WS-X4148-RJ45V module is presumed
to be equal to its administrative PoE.
The 802.3af-compliant PoE modules can consume up to 20 W of PoE to power FPGAs and other
hardware components on the module. Be sure to add at least 20 W to your PoE requirements for each
802.3af-compliant PoE module to ensure that the system has adequate power for the PDs connected to
the switch.
The example below displays the PoE consumption for an 802.3af-compliant module using the show
power module command.
The “Inline Power Oper” column displays the amount of PoE consumed by the powered devices that are
attached to the module, in addition to the PoE consumed by the FPGAs and other hardware components
on the module. The “Inline Power Admin” column displays only the amount of PoE allocated by the
powered devices attached to the module.
Note The operating PoE consumption for an 802.3af-compliant module can be non-zero, even when there are
no powered devices attached to the module, because of the PoE consumed by FPGAs and other hardware
components on the module. In addition, the operating PoE can vary due to fluctuations in the PoE
consumed by the hardware components.

Cisco 4500M Specifications

General

Brand	Cisco
Model	4500M
Category	Network Router
Language	English