Ethernet switch with Infiniband uplink

Amiramix asked:

There are Ethernet switches (copper based, i.e. with RJ45 sockets) that have Fibre uplink. Example: Netgear GS110TP

Are there any such switches with Infiniband uplinks? If not then why?

My answer:

Ethernet and InfiniBand are two completely different and incompatible layer 2 protocols, for one. That’s certainly sufficient. Don’t confuse the physical media (layer 1) with the wire protocol (layer 2) that runs over the physical media.

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