


China Mobile: The world's first 400G all-optical interprovincial backbone network is officially commercialized, with bandwidth increased by 4 times
According to news on March 8, China Mobile held a press conference in Beijing and announced that the world’s first independently developed 400G all-optical inter-provincial backbone network was officially commercialized.
According to China Mobile’s plan, high-speed interconnection among the eight major hubs of “Eastern Digital and Western Digital” will be fully realized by the middle of this year. By then, China Mobile will become the world’s largest and first 400G all-optical inter-provincial backbone with the widest coverage. Network operator.
It is understood that the 400G all-optical interprovincial backbone network is a long-distance optical signal transmission network device that can connect edge, center and hub cluster computing power and is the connection hub of the computing power network.
Through innovative breakthroughs in key technologies such as 400G QPSK high-performance encoding and decoding technology, C6T L6T ultra-wide spectrum, and saturated optical power dynamic balance control, it provides ultra-large bandwidth and ultra-low power for hub cluster computing power integration and collaboration. Latency, ultra-high capacity, ultra-high security, ultra-high energy efficiency, ultra-high intelligent interconnection and other guarantees.
Compared with the previous generation trunk network, the transmission bandwidth has been increased by 4 times, the network capacity exceeds 30PB, the inter-hub latency is less than 20ms, the latency of key active links has been reduced by 20%, and the security capabilities have been comprehensively upgraded. The energy consumption per bit is reduced by 65%, and the cost per bit is reduced by 20%.
Li Huidi, deputy general manager of China Mobile, said that China Mobile was the first to propose the "Jiuzhou" computing power optical network evolution system, and around the goal and vision of "six optical and six poles", it collaborated with the domestic industry chain and independently conquered the three major 400G technologies. We must overcome difficulties and achieve full independence in key technologies and core devices.
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