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The QSFP+ BIDI transceivers were employed on Mellanox MLX-2700B (Cumulus IOS). There is no useful DOM information from the “ethtool-m” data.

Solution:Troubleshoot the problem in the following way:10Gtek engineers compared the customer’s test result screenshot with ours and found the difference. Customer feedback, DDM information is normal after re-reading, all module tests are ok.