METHOD AND AN APPARATUS FOR CONTROLLING DOWNLINK TRAFFIC IN A ETHERNET PASSIVE OPTICAL NETWORK, PARTICULARLY FOR MONITORING AND CONTROLLING BANDS CONTRACTED WITH SUBSCRIBERS

摘要

PURPOSE: A method and apparatus for controlling downlink traffic in an EPON(Ethernet Passive Optical Network) are provided to control impartiality among ONUs(Optical Network Units) by transmitting downlink data by a token allocated to each ONU and accordingly guaranteeing a contracted band of each ONU. CONSTITUTION: The different number of tokens are generated according to a contracted transmission rate of each ONU(S100). The certain number of tokens for guaranteeing a minimum transmission rate of each ONU is stored separately(S200). When downlink data is generated(S300), the downlink data is transmitted to a target ONU by applying a certain downlink traffic control algorithm(S400).