Method for controling upstream traffic of ethernet passive optical networke-pon

Upward traffic control method in a passive optical network is an Ethernet-based, a) determining the presence or absence of a data frame transmitted in the first buffer; b) If it is determined that the first buffer the data frame transmitted in the step of determining whether the data frame is a reference value which is set below the low water mark to ensure the minimum transmitted traffic; c) comprising the steps of: if it is determined that the data frame is greater than the low water mark present in the first buffer, transmitting the data frame present in the first buffer, and determines whether the data frame is less than the low water mark to transfer to the second buffer; d) the method comprising if the second data frame present in the buffer is determined to be less than the low water mark, determining whether the data frame is less than the low water mark to transfer to the third buffer; And e) if it is determined that the data frame is less than the low water mark transferred to the third buffer, the transmitting each of the data frames to the second buffer, and present in the third buffer. Ethernet passive optical network, the upward transport, traffic, low watermark