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How to use the SFP+ ports at 1G?

Question asked by helloppc on Jun 29, 2020
Latest reply on Jul 1, 2020 by bpe

As per question, I am using the T4240RDB and, for compatibility, I would like to use the SFP+ ports at 1G instead of 10G.

Following the fman specs, I added the property fsl,fman-best-effort-port in the dtb, but my switch can't establish the connection (Dell 5324): I tried with auto-negotiation enabled and disabled.

Should I change anything else? Or am I misunderstanding the specs of FMAN?