Saturday, January 12, 2019

QSFP+ and SFP question

Ok, this is a weird question and I'll probably get some flak for this, but is there any real proof that an SFP (1000BASE) transceiver cannot be at the end of a QSFP+ breakout? Afaik QSA type adapters are just splitters but leave the other 3 out as evidenced by how they are configured in the CLI as a breakout. Yet they support older SFP transceivers just fine. Is there something I'm missing here?

What I'm trying to experiment with at the moment:

QSFP+ LR4 -> MTP -> 4x SFP LX



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