Feasibility study on parallel transport technology for 40-Gb/s Ethernet over OTN

We present parallel transport technology for 40-Gb/s Ethernet (40 GbE) over an Optical Transport Network (OTN). Key technologies that are newly implemented for 40 GbE termination and its accommodation include transcoding from the 64B/66B code to 1024B/1027B code and rate adjustment using the Generic Mapping Procedure (GMP). We successfully verified the logical circuit feasibility for those functions using a Field-Programmable Gate Array (FPGA) with 136 kilo LUTs.