You can disable PoE on a switch either via CLI commands or through the switch's web interface, depending on the model.

Using CLI on Cisco Switches

1. Access the switch CLI using a terminal program like PuTTY or via SSH/telnet.
2. Enter global configuration mode:

   Switch> enableSwitch# configure terminal

3. Select the interface you want to disable PoE on (replace fastethernet0/2 with your port):

   Switch(config)# interface fastethernet0/2

4. Disable PoE on that port:

   Switch(config-if)# power inline never

5. To re-enable PoE later, use:

   Switch(config-if)# power inline auto

6. Save the configuration to retain changes after a reboot:

   Switch# write memory

This method ensures that only PoE is disabled while the port remains active for data traffic .

Using Web Interface on Managed Switches

For switches with a web-based management interface (e.g., Cisco CBS series or TP-Link Smart Switches):

1. Log in to the switch's web interface using its IP address.
2. Navigate to PoE Settings or PoE Configuration.
3. Select the port(s) you want to disable PoE on.
4. Choose Disable or Turn Off PoE.
5. Save the settings and, if required, perform a reboot to apply changes .

Notes

• Unmanaged switches cannot have PoE disabled individually; the feature is fixed.
• Avoid using the shutdown command if you only want to disable PoE, as it will also disable data transmission on the port .
• Always verify your switch model supports PoE configuration before attempting changes. By following these steps, you can safely turn off PoE on specific ports without affecting network connectivity.