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Configuring PoE (CLI Procedure)

Power over Ethernet (PoE) ports supply electric power over the same ports that are used to connect network devices. These ports allow you to plug in devices that require both network connectivity and electric power, such as VoIP phones, wireless access points, and some IP cameras.

For EX Series switches that support PoE ports, the factory default configuration specifies and enables PoE interfaces for the PoE ports.

To configure PoE:

  1. Enable PoE:
    • For all PoE interfaces:

      [edit]
      user@switch# set poe interface all
    • For a specific PoE interface:

      [edit]
      user@switch# set poe interface ge-0/0/0
  2. By default the power management mode is static. To change the power management mode to class:

    [edit]
    user@switch# set poe management class

    Note: When the power management mode is set to class, the maximum power value is overridden by the maximum power value of the class of power device connected.

  3. Set the power priority:
    • For all PoE interfaces:

      [edit]
      user@switch# set poe interface all priority low
    • For a specific PoE interface:

      [edit]
      user@switch# set poe interface ge-0/0/0 priority high
  4. Set the maximum PoE wattage available (the default is 15.4):
    • For all PoE interfaces:

      [edit]
      user@switch# set poe interface all maximum-power 14
    • For a specific PoE interface:

      [edit]
      user@switch# set poe interface ge-0/0/0 maximum-power 12.8
  5. Enable logging of PoE power consumption with the default telemetries settings:
    • For all PoE interfaces:

      [edit]
      user@switch# set poe interface all telemetries
    • For a specific PoE interface:

      [edit]
      user@switch# set poe interface ge-0/0/0 telemetries
  6. Reserve a specified wattage of power for the switch in case of a spike in PoE consumption (the default is 0):

    [edit]
    user@switch# set poe guard-band 15

Published: 2009-12-27

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