Ethernet passive optical network system

摘要

Ethernet Passive Optical Network (PON) system is provided and includesan Optical Line Termination (OLT) and a plurality of Optical Network Units (ONUs) connected to the OLT, and the system implements a Peer-to-Peer (P2P) transmission between ONU-side objects controlled by the OLT. A PON tagging Ethernet frame for the P2P transmission includes a Destination Address (DA) field, a Source Address (SA) field, a mode field indicating an emulation mode, and a PHYsical ID (PHY_ID) field indicating identifiers of the ONU-side objects, and a data field. The OLT further includes: a multiplexing layer for transmitting a received PON tagging Ethernet frame to an upper layer over a logic port associated with a corresponding PHY_ID field, and a bridging function layer for converting information of the PHY_ID field into PHYsical ID (PHY_ID) information corresponding to a destination ONU-side object by referring to the DA field when an emulation mode of a frame received through the logic port is the P2P transmission mode and for transmitting the converted PHY_ID information to a corresponding ONU through a logic port associated with the converted PHY_ID information.