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IEEE的802.3bs_D3.5标准 协议，400G光通信必看。This amendment to IEEE Std 802.3-2015 adds Clause 116 through Clause 124 and Annex 119A through Annex 120E. This amendment includes IEEE 802.3 Media Access Control (MAC) parameters, Physical Layer specifications, and management parameters for the transfer of IEEE 802.3 format frames at 200 Gb/s and 400 Gb/s. Keywords: 200 Gb/s Ethernet, 200GAUI-4, 200GAUI-8, 200GBASE-DR4, 200GBASE-FR4, 200GBASE-LR4, 200GBASE-R, 200GMII, 200GXS, 400 Gb/s Ethernet, 400GAUI-8, 400GAUI-16, 400GBASE-DR4, 400GBASE-FR8, 400GBASE-LR8, 400GBASE-SR16, 400GBASE-R, 400GMII, 400GXS, Energy Efficient Ethernet (EEE), Ethernet, forward error correction (FEC), IEEE 802.3™, IEEE Std 802.3bs™, MMF, PAM4, Physical Medium Dependent (PMD) sublayer, SMF