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Cisco C9350 Series Smart Switches
Configuration Guides

PoE Configuration Guide

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Cisco Configuration Guide, Release 4.2

Table of contents

Expand all sections

About this document

Read Me First

PoE

Feature History for PoE
PoE support on switch models
Guidelines for PoE
PoE
PoE management modes
PoE, powered device, and switch
Power monitoring and power policing
Monitor power status
Example: Display PoE status

Perpetual PoE and Fast PoE

Support of Perpetual PoE and Fast PoE on a switch
Perpetual PoE
Fast PoE
How fast PoE works
Guidelines to configure perpetual PoE and fast PoE
Configure perpetual PoE and fast PoE
Example: Configure perpetual PoE

Persistent PoE with 2-event enabled and Fast PoE

Feature History for Persistent PoE with 2-event enabled and Fast PoE
Support of persistent PoE with 2-event enabled and fast PoE on switch
Persistent PoE with 2-event enabled and fast PoE
How persistent PoE with 2-event enabled and fast PoE works
Guidelines to configure persistent PoE with 2-event enabled and fast PoE
Configure persistent PoE with 2-event enabled and fast PoE
Example: Configure 2-Event classification

Perpetual PoE and Fast PoE

Updated: September 15, 2025

Overview

Provides details about perpetual PoE and fast PoE, supported switch modules, guidelines, and how to configure perpetual PoE and fast PoE.

Feature history for Perpetual PoE and Fast PoE

Support of Perpetual PoE and Fast PoE on a switch

Lists the modules that support Perpetual PoE and Fast PoE.

Perpetual PoE

Describes perpetual PoE.

Fast PoE

Describes fast PoE.

How fast PoE works

Explains the process of how fast PoE works.

Guidelines to configure perpetual PoE and fast PoE

List the guidelines to configure perpetual PoE and fast PoE.

Configure perpetual PoE and fast PoE

Use this procedure to configure perpetual PoE and fast PoE.

Example: Configure perpetual PoE

Provides configuration examples of perpetual PoE.

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Bias-free language

The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.