Introduction

Perpetual PoE (Power over Ethernet) is a feature that ensures continuous power supply to connected devices, even when the switch is rebooting. This capability is critical for maintaining uninterrupted operation of PoE-dependent devices such as IP cameras, VoIP phones, and wireless access points, ensuring they remain functional and avoid downtime during switch maintenance activities.

Configuration Notes

When configuring perpetual PoE, consider the following points:

• Only S5860-24XB-U switch supports perpetual PoE.

• Perpetual PoE supports maintaining uninterrupted power during a system reboot in the following scenarios.

  1. Execute the command request system reboot in L2/L3 CLI operating mode.

• Before restarting the S5860-24XB-U device, you need to save the configuration by executing copy running-config startup-config in L2/L3 CLI operating mode.

• Perpetual PoE will not maintain uninterrupted power in the following situations:

Configuring Perpetual PoE

• Use the following command to disable or enable the perpetual PoE function.

       By default, perpetual PoE is disabled.

Example

• This example shows how you can configure perpetual PoE on the switch.