• Supported Platforms
• EX Series

• Related Topics
• Configuring PoE (CLI Procedure)
• Example: Configuring PoE Interfaces on an EX Series Switch
• Example: Configuring PoE Interfaces with Different Priorities on an EX Series Switch
• Verifying PoE Configuration and Status (CLI Procedure)

Monitoring PoE Power Consumption (CLI Procedure)

You can monitor Power over Ethernet (PoE) power consumption, both for the switch as a whole and for individual PoE interfaces.

This topic describes how to monitor:

• PoE Power Consumption for the Switch
• Current Power Consumption for PoE Interfaces
• Power Consumption for PoE Interfaces over Time

PoE Power Consumption for the Switch

Purpose

Determine the current PoE power consumption for the switch as a whole.

Action

Enter the following command:

user@switch> show poe controller
Controller  Maximum   Power              Guard band  Management
index       power     consumption
   0        130 W       65W               15W        Static

Meaning

At the time the command was executed, the PoE interfaces on the switch were consuming 65 W out of the switch PoE power budget of 130 W.

Current Power Consumption for PoE Interfaces

Purpose

Determine the current power consumption for individual PoE interfaces.

Action

To monitor the power consumption of all PoE interfaces on the switch, use the following command:

user@switch> show poe interface
Interface Admin status Oper status Max power Priority Power consumption Class
 ge-0/0/0 Enabled       ON         15.4W     Low      7.4W                0
 ge-0/0/1 Enabled       ON         15.4W     High     12.0W               0
 ge-0/0/2 Enabled       ON         15.4W     Low      12.4W               0
 ge-0/0/3 Enabled       ON         7.0W      Low      5.3W                2
 ge-0/0/4 Enabled       ON         4.0W      Low      4.0W                1
 ge-0/0/5 Disabled     Disabled    0.0W      Low      0.0W                0
 ge-0/0/6 Enabled      OFF         15.4W     Low      0.0W                0
 ge-0/0/7 Disabled     Disabled    0.0W      Low      0.0W                0

To monitor the power consumption of an individual PoE interface, use the following command:

user@switch> show poe interface ge-0/0/3
PoE interface status:
PoE interface                :  ge-0/0/3
Administrative status        : Enabled
Operational status           :  ON
Power limit on the interface : 7.0W
Priority                     : Low
Power consumed               : 5.3W
Class of power device        :   2

Meaning

Using interface ge-0/0/3 as an example, the powered device connected to the interface was consuming 5.3 W at the time the command was executed.

Power Consumption for PoE Interfaces over Time

Purpose

Monitor the power consumption of a PoE interface over a period of time. The records collected remain available for future viewing.

You can specify the intervals at which power consumption data is collected, from once every minute to once every 30 minutes. The default is once every 5 minutes. You can also specify the duration over which the records are collected, from 1 hour (default) to 24 hours.

Action

To collect historical records of PoE interface power consumption and display those records:

1. Add the telemetries statement to the PoE interface configuration:

   [edit]
   user@switch# set poe interface ge-0/0/5 telemetries interval 10 

   When you commit the configuration, record collection begins.

2. Display the collected records:

   user@switch> show poe telemetries interface ge-0/0/5 all
   Sl No    Timestamp                Power    Voltage
      1     03-19-2010 13:00:07 UTC  3.9W     50.9V
      2     03-19-2010 12:50:07 UTC  3.9W     50.9V
      3     03-19-2010 12:40:07 UTC  3.9W     50.9V
      4     03-19-2010 12:30:07 UTC  3.9W     50.9V
      5     03-19-2010 12:20:07 UTC  3.9W     50.9V
      6     03-19-2010 12:10:07 UTC  3.9W     50.9V

To start another session of record collection on the interface, you must commit the configuration again.

Meaning

Over the hour in which the PoE power consumption data on ge-0/0/5 was collected, the connected powered device consistently consumed 3.9 W.