this post was submitted on 30 Sep 2023
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[โ€“] nomecks@lemmy.world 7 points 2 years ago* (last edited 2 years ago) (1 children)

You can just connect a normal fiber between a 10G SFP and a 40G QSFP and let the 40G end auto negotiate to 10G. Fanout cables are better for density though.

[โ€“] MxM111@kbin.social 2 points 2 years ago (1 children)

Does 40G QSFP transponder be able to even communicate with 10G SFP? Do they even have the same encoding? OOK? QPSK?