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by e12e 4388 days ago
Just to add to what solarexplorer said, see eg:

https://en.wikipedia.org/wiki/TCP_congestion_avoidance_algor...

In general TCP deals with dropped packets (and unstable links, be that due to traffic shaping or other causes) -- while eg: UDP assumes some packets will just vansish -- you have to (should) deal with it yourself...