Patent ID: 8238373

Claim:
A method for mapping Ethernet code blocks to an optical transport network (OTN) for transmission, comprising: taking a plurality number of 40 G Ethernet code blocks as a code block group; mapping the code block group to a payload area of a general frame provision (GFP) frame according to a preset mapping manner, and setting a corresponding identifier to identify the mapping manner; and mapping the GFP frame to the OTN, and sending the GFP frame; wherein, the 40 Gigabit Ethernet code blocks are encoded through a 64/66B encoding scheme, and an encoding rate required by a physical (PHY) layer is 66/64*40 GBits/s=41.25 GBits/s; and a rate of the GFP frame is lower than the minimum payload rate of an optical channel payload unit 3 (OPU3); wherein, when the number of the 40 G Ethernet code blocks is 8, the code block group comprises 512/513 bits; when the number of the 40 G Ethernet code blocks is 16, the code block group comprises 1216/1217 bits.