FIELD: communication.
SUBSTANCE: invention relates to communication technologies. For this, method includes: reception, by means of first communication board of data stream units of ODU optical channel data; performing, by first communication board, slicing processing over ODU data stream according to frames fixed frequency in order to obtain various slices, wherein each slice includes segment of continuous ODU data in ODU data stream; separate inclusion, by means of first communication board, of each slice into Ethernet frame; and sending, by means of first communication board, of each Ethernet frame to TDM multiplexing service switching module with time division in Ethernet switching microchip so, that TDM service switching module sends each Ethernet frame to second communication board, to which directs MAC destination address, portable in Ethernet frame.
EFFECT: technical result is reduction of TDM service transmission delay.
20 cl, 8 dwg, 2 tbl
