Patent ID: 8259750

Claim:
A method for mapping Ethernet code blocks to an optical transport network (OTN) for transmission, comprising: mapping a plurality of 10 Gigabit (10G) Ethernet code blocks to an OTN frame corresponding to an optical channel payload unit 2 (OPU 2 ) as a bit stream within a justification range according to an asynchronous bit-stream mapping manner; setting an identifier for indicating the asynchronous bit-stream mapping manner at an overhead (OH) portion of the OTN frame; recording an offset of a certain code block in the bit stream relative to a certain position of the OTN frame; allocating a Block Align (BA) indicator in an optical channel data unit (ODU) OH portion of the OTN frame to indicate an offset position, wherein the BA indicator comprises a Row indicator and a Column indicator for representing a position of a first frame delimiter on an 8-bit boundary in the 10G Ethernet code blocks transmitted in a current cycle; mapping the obtained OTN frame to the OPU 2 of the OTN; and sending the OTN frame.