METHOD FOR SWITCHING ETHERNET PASSIVE OPTICAL NETWORK AND LAYER 2

摘要

PURPOSE: A method for switching Ethernet passive optical network and a layer 2 is provided to realize subscriber-to-subscriber communication as well as ONU-to-ONU within the layer 2. CONSTITUTION: A predetermined PHY ID is granted to each service port or subscriber port(S1,...,S9) connected with each ONU(Optical Network Unit)(450,510,550). The PHY ID is tagged and filtered to a transmission frame by using PHY ID tagging/detagging layers(455,515,555). An Ethernet frame has the predetermined port connected with the ONU as a destination is transmitted through a port of an L2(Layer2) switch(440) assigned to the port in case that an OLT(Optical Line Termination)(410) receives the Ethernet frame.