METHOD OF DETECTING RIGUE ONU, OLT AND PON SYSTEM

摘要

PURPOSE: A log ONU(Optical Network Unit) detecting method, OLT(Optical Line Terminal), and POL(Passive Optical Network) are provided to remotely block the uplink stream transmission of the log ONU by detecting the log ONU which transmits abnormal uplink streams. CONSTITUTION: An OLT determines log ONU candidates(S410). The OLT successively transmit sleep allow force messages for the compulsive sleep mode transition of the ONU(S420). The OLT uplink stream band allocation information to the ONU(S430). The OLT detects the log ONU by inspecting the uplink traffic of each ONU(S440). A parameter related to the sleep mode is established based on the log ONU candidates and an OMCI(ONT Management and Control Interface).