> I’m curious — how would something like a data-diode work in real life?
Low, fixed-bitrate transfer over unidirectional fiber optics. Unidirectional transcievers are the norm for long-haul fiber.
My local electrical utility is still running 11.52kbps RS-232 over fiber for exactly this reason. At those bitrates you don't need backpressure -- your disk will never fill up and if the CPU can't handle that bitrate you already have much larger problems.
It's kind of funny that they have sheaths where one strand is running this piddly dozen-kilobit protocol and other strands in the same sheath are doing 10gbit/sec * 16-channel CWDM.
Most electrical utilities are into fiber optics in a very big way; they already (usually) own the poles and unlike copper it's nonconductive. Many of them have vastly more strands of fiber between substations than they need.
Low, fixed-bitrate transfer over unidirectional fiber optics. Unidirectional transcievers are the norm for long-haul fiber.
My local electrical utility is still running 11.52kbps RS-232 over fiber for exactly this reason. At those bitrates you don't need backpressure -- your disk will never fill up and if the CPU can't handle that bitrate you already have much larger problems.
It's kind of funny that they have sheaths where one strand is running this piddly dozen-kilobit protocol and other strands in the same sheath are doing 10gbit/sec * 16-channel CWDM.
Most electrical utilities are into fiber optics in a very big way; they already (usually) own the poles and unlike copper it's nonconductive. Many of them have vastly more strands of fiber between substations than they need.