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Disable PoE on the switch

Disable PoE on the switch

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You can disable PoE on a switch port using CLI commands like power inline never or via the switch's GUI PoE settings.

Disabling PoE via CLI (Command-Line Interface)

For Cisco switches, you can disable PoE on individual ports using the following steps:

  1. Access the switch CLI via console, SSH, or Telnet.
  2. Enter global configuration mode:

    CodeCopyconfigure terminal

  3. Select the interface you want to disable PoE on (replace 1/27 with your port):

    CodeCopyinterface gigabitEthernet1/27

  4. Disable PoE on that port:

    CodeCopypower inline never

  5. To re-enable PoE later, use:

    CodeCopypower inline auto

  6. Save the configuration to make it persistent:

    CodeCopywrite memory

This method ensures that PoE is completely disabled on the selected port without shutting down the port itself .

Disabling PoE via GUI

For switches that support a web interface (e.g., Cisco CBS series):

  1. Determine the switch's IP address using a network scanner.
  2. Open a browser and log in to the switch's web interface.
  3. Navigate to PoE Settings.
  4. Select the port(s) you want to disable PoE on.
  5. Apply the changes and save the configuration.
  6. Some switches may require a reboot for the changes to take effect .

Notes for Other Switch Brands

  • On Aruba switches, PoE can be disabled using the no poe command on the desired port or by specifying a port list to disable PoE operation .
  • If a switch exhibits PoE leakage even after disabling, resetting the interface to default and reapplying the configuration can resolve hardware-specific issues . By following these steps, you can safely disable PoE on individual ports or across multiple ports, depending on your network requirements.
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