How to check a PoE switch

You can check PoE status on a switch using CLI commands, web interfaces, port labels, or PoE testing tools to verify power delivery and consumption.Using CLI Commands (Cisco Example)Connect to the switch via console cable, SSH, or Telnet and log in with administrator credentials.Enter privileged EXEC mode by typing enable and providing the enable password.Check overall PoE status with the command:CodeCopyshow power inline This displays each interface's PoE status, power allocated, and power consumed by connected devices .Check a specific interface:CodeCopyshow power inline interface Replace with the port you want to inspect. This shows the device connected, power usage, and port state .Check power consumption per module (for modular switches):CodeCopyshow power inline module Optional configuration check: You can verify if PoE is enabled or set to auto/static using:CodeCopyshow interface status or configure with:CodeCopyinterface power inline auto Using Web-Based Management InterfaceLog in to the switch's web interface using its IP address.Navigate to the PoE or Power section.Review the table showing PoE-enabled ports, power allocated, and power consumed .Physical Indicators and LabelsMany PoE switches have LED indicators next to ports that light up when PoE is active .Ports may be labeled “PoE” or “PoE+”, indicating support for standard (15.4 W) or higher power (30 W) per port.The switch label or manual often lists the total power budget.Using PoE Testing ToolsTools like LinkSprinter can test if a port is delivering proper PoE voltage and validate network connectivity at the device end .Testing at the wall jack ensures the powered device receives sufficient voltage, accounting for cable loss.SummaryTo check PoE on a switch:Use CLI commands (show power inline) for detailed port-level information.Use the web interface for a visual overview.Check LED indicators and port labels for quick verification.Use PoE testers to confirm actual power delivery to devices. These methods help ensure PoE is enabled, properly configured, and delivering sufficient power to connected devices.