At the "2022 China Optical Network Symposium" held today, Wei Leping, executive deputy director of the Communications Technology Committee of the Ministry of Industry and Information Technology, director of the Technology Committee of China Telecom Group Corporation, and chairman of the China Optical Network Symposium, said that the 400G era has opened. Data centers (DCs) are the first to open the transition to 400G, and 400G has opened applications in 2019 and will become dominant in 2023.
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