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CHAPTER 124
Troubleshooting PoE Configuration
Troubleshooting PoE Interfaces
Problem
Solution
Related
Documentation
Copyright © 2010, Juniper Networks, Inc.
Troubleshooting PoE Interfaces on page 3553
A Power over Ethernet (PoE) interface is not supplying power to the powered device.
Check for the items shown in Table 483 on page 3553.
Table 483: Troubleshooting a PoE Interface
Items to Check
Is the switch a full PoE model or a partial PoE
model?
Has PoE capability been disabled for that
interface?
Is the cable properly seated in the port socket?
Has the PoE power budget been exceeded for
the switch?
Does the powered device require more power
than is available on the interface?
If the
option has been enabled for
telemetries
the interface, check the history of power
consumption.
Example: Configuring PoE Interfaces with Different Priorities on an EX Series Switch
on page 3537
Verifying PoE Configuration and Status (CLI Procedure) on page 3550
Monitoring PoE Power Consumption (CLI Procedure) on page 3548
Configuring PoE (CLI Procedure) on page 3543
Explanation
If you are using a partial PoE model, only
interfaces
through
ge-0/0/0
ge-0/0/7
function as PoE ports.
Use the
command to check
show poe interface
PoE interface status.
Check the hardware.
Use the
show poe controller
command to check
the PoE power budget and consumption for the
switch.
Use the
command to check
show poe interface
the maximum power provided by the interface.
Use the
show poe telemetries interface
command to display the history of power
consumption.
can
3553
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