Determining power over ethernet impairment

摘要

A system and method of determining an unbalanced current condition in Power over Ethernet applications are disclosed. In some implementations, a user or network administrator may be notified of potential impairments due to unbalanced current.

主权项

1. A method of determining an impairment in a Power over Ethernet application, said method comprising:
monitoring operation of an echo canceller with a tap monitor, the echo canceller being associated with a physical device, the echo canceller configured to remove echo energy from a signal; measuring the echo energy over time; determining that the measured echo energy over time is above a threshold indicating a saturation condition; and responsive to said determining that the measured echo energy over time is above the threshold, triggering an alert indicating that the saturation condition is caused by an unbalanced current.