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why cant we connect 2 computers using USB
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this post was submitted on 02 May 2024
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Ethernet had this figured out almost 30 years ago with auto-negotiation. Last crossover cable I ever used was in 2004 for a customer's old hub they didn't want to replace. Yes, "hub", not "switch".
Not a fair comparison IMHO - Ethernet is designed to be a connection between two or more otherwise independent peers (on L2), while USB's goal was to allow connecting simple peripheral devices to computers. There was never meant to be a situation where it's unclear which side is the Host.
Also note that the bridging "cable" is literally just two USB devices, one for each computer (although they are both on the same chip, so there's that), with some internal link to pass the data.