Power inline police enables power policing on a Cisco IOS switch interface. It protects the switch when a powered device (PD), such as an IP phone or wireless access point, draws more power than its cutoff allowance. section 10.1.2
When policing is enabled:
- The switch compares the PD’s power draw with the configured cutoff power. section 10.1.2
- Excessive draw places the interface into an error-disabled state, stopping both data and power transmission. section 10.1.2
- The switch generates a Syslog message; disconnect the offending device before recovery. section 10.1.2
Configure and verify policing
Enter interface configuration mode, apply power inline police to the required port or interface range, then run do show power inline police. Example output for Fa0/1 and Fa0/2 shows Admin Police errdisable, Oper Police ok, and a 15.4-watt cutoff. To recover an error-disabled port, use shutdown followed by no shutdown after removing the problematic device. section 10.1.2
