Yuan Daochun, a senior technical expert at Huawei Technologies Co., Ltd. and a chief architect in the energy industry, has extensive experience in designing and developing SDH, MSTP, and OTN optical transmission equipment, as well as creating optical transmission solutions for the electric power industry. He has played a key role in the standardization, networking, and product design of 2M optical/2M ASON/2M hitless protection for relay protection.