TRAFFIC DISTRIBUTION AND CONTROL MANAGEMENT SYSTEM IN E-PON SYSTEM AND METHOD THEREFOR

摘要

PURPOSE: A traffic distribution and control management system in an E-PON(Ethernet-Passive Optical Network) system and a method therefor are provided to eliminate unnecessary traffic loads in a subscriber network by dispersing and managing data traffics between an OLT(Optical Line Terminal) system and a plurality of ONUs(Optical Network Units). CONSTITUTION: An OLT system(20) is comprised of a service port function unit(21), a control function unit(22), an OLT traffic distribution function unit(23), a logical link identifier DB(24), an OLT OAM(Operations, Administration and Maintenance) function unit(26), and an OLT management DB. The service port function unit(21) processes traffic transmission/reception with a backbone network. The control function unit(22) controls traffic transmission/reception and transport channel allocation in the OLT system(20). The OLT traffic distribution function unit(23), if a traffic is received from an external backbone network or an internal ONU(40), confirms the type and destination subscriber of the traffic and judges to which ONU the traffic is to be transmitted, based on the logical link identifier DB(24). The OLT OAM function unit(26), managing the network state and performance in the whole system, requests the OAM function unit of each ONU(40) to transmit management information, receives it, and stores it in the OLT management DB.