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by oso2k 2674 days ago
So, it’s been a while since I’ve dived in [0], but “time” as a dependency has been, what I would call, “engineered out of the system”. Instead, there’s concepts of (local) timers, Store-And-Forward Overlays, retries, communication opportunities and the overall realization that time is relative and synchronized time can be difficult at a protocol level when link-level distances are always changing (by miles to billions of miles at a time per communication opportunity).

[0] https://public.ccsds.org/Pubs/720x1g3.pdf