PoE powered management circuitry using out-of-band data port

摘要

A local area network system includes switching circuitry and in-band data ports under control of the switching circuitry. Device management circuitry is configured to manage the local area network device and system power is configured to provide power to the switching circuitry and the device management circuitry. An out-of-band data port is coupled to the device management circuitry. The out-of-band data port is supplied with a Power-over-Ethernet supply.