Patent ID: 7940812
Filing Date: 2011-05-10
Classification: H04J

Abstract:
1. An Ethernet access device, located between a plurality of access nodes and a gateway equipment, comprising at least two downlink physical port units, a multiplex/demultiplex unit and an uplink physical port unit, wherein: the downlink physical port unit is adapted to perform a conversion between a low-speed physical layer signal input to or output from the access device and a low-speed physical layer load carried in the low-speed physical layer signal; the uplink physical port unit is adapted to perform a conversion between a high-speed physical layer signal input to or output from the access device and a high-speed physical layer load carried in the high-speed physical layer signal; and the multiplex/demultiplex unit is adapted to perform a multiplex or a demultiplex for the low-speed physical layer load of the downlink physical port unit and the high-speed physical layer load of the uplink physical port unit according to a tag in the physical layer load corresponding to the downlink; wherein the multiplex/demultiplex unit comprises a tag storage module, a tag module and a code stream multiplex module, wherein: the tag storage module is adapted to store the tag and the correlation between the tag and the downlink physical port unit; the tag module is adapted to add the tag corresponding to the downlink physical port unit to the low-speed physical layer load input from the downlink physical port unit and output the low-speed physical layer load to the code stream multiplex module, and remove the tag from the physical layer load input from the code stream multiplex module and output the low-speed physical layer load to the downlink physical port unit corresponding to the tag; and the code stream multiplex module is adapted to perform a conversion between the low-speed physical layer load of the tag module and the high-speed physical layer load of the uplink physical port unit.