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I want to establish a TCP/IP link between two Linux machines that have several USB 2.0 ports as the only connection options. Since both host and slave ports are available, I can connect them via a simple USB cable. What are the possibilities to forward TCP/IP over that cable and which one should I use to achieve highest bandwidth?
So far I've tried ADB (Android Debug Bridge) forwarding, but the throughput is poor -- only 30-40Mbps. I think that it should be possible to achieve at least 150-200Mbps using a specialized driver -- USB hard drives occasionally move files at 240-280Mbps out of the 480 theoretically available.
jons34yp
Posted 2013-05-10T03:03:18.260
Reputation: 389
1You could get two USB network cards (you can get gigabit ones, but they won't max out at their full speed) and just use the normal networking stack..? – Mark Henderson – 2013-05-10T03:05:57.587
They cost more and add additional overhead. – jons34yp – 2013-05-10T03:12:18.807
1Well, you didn't mention anything in your question about budget requirements, and they might be overhead but it's going to be faster than 40Mbps. – Mark Henderson – 2013-05-10T03:28:28.390
What do you mean both master and slave ports are available? PCs only have master ports. – psusi – 2013-05-10T03:55:22.677
1@MarkHenderson - "get two USB network cards" - it's not (correctly) called a "card" when it's no longer a naked PCB (printed circuit board). When it's encased, then it's a module or an adapter. Otherwise I agree, a pair of USB-to-Ethernet adapters is the most straightforward (and maybe the "best") solution. Unless "best" only means "fastest". – sawdust – 2013-05-10T07:28:27.077