@YurkshireLad@quephird seriously. Good old UUCP was built for high bandwidth, higher latency, connectivity. Gimme back bang path addressing! If it could handle a tape that took overnight to get from one system to another, it could handle whatever deep space comms can throw at it. (Slap a layer of checksumming atop to catch line noise introduced bit flips and you should be well along the way.)