Wednesday, February 5, 2020

SFP and port speed interplay (Layer 1 question)

I have a 100Gb port with a 40Gb QSFP+ module in the slot. The output on the switch indicates support for partitioning modes of 1x40Gb or 4x10Gb. If I specify 4x10Gb as partitioning mode, but don't use a breakout cable to accomplish "true" 4x10Gb, and instead just connect the fiber directly into the module, will the port function at 10Gb? or not at all?



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