Ethernet passive optical network and point-to-point emulation method

A point-to-point emulation method for operating an Ethernet passive optical network having an optical line terminal (OLT), a plurality of optical network units (ONUs) each connected to the OLT, an ONU side comprising said plurality, and an OLT side comprising said OLT, wherein a augmented Ethernet frame transmitted between the OLT and the ONUs includes a destination address (DA) field representing a destination address, a source address (SA) field representing a source address, and an LLID field in which a unique LLID assigned to a respective object of the ONU side is recorded, the method comprising the steps of:

• assigning on a one-to-one basis the LLIDs to ports of a structure comprising one of a bridge or an L2 (Layer 2) switch of the OLT side
• learning which of the ports is a source port of said source address of the L2 switch of the OLT side;
• upon receiving the augmented Ethernet frame, outputting, by the OLT, an LLID field-deleted Ethernet frame to the structure port to which said unique LLID is assigned;
• transmitting, by said structure, the LLID field-deleted Ethernet frame to said source port;
• regenerating, by the OLT, an augmented Ethernet frame by inserting into the LLID field-deleted Ethernet frame an LLID field in which an LLID of a destination ONU is recorded;
• and
• transmitting the regenerated augmented Ethernet frame to the destination ONU.