This was a 3rd run after the issue started.
At first I got 40% packet loss, then 2%, and finally, 0% somehow.

Where even are the packets for that long?

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[–] 5 points 2 months ago* (1 child)

Satellite link?

Whatever your network topology is, the buffers are keeping all of the packets for reconnection, that's why you have 0% packet loss. So either you have very constrained links, and huge packet buffers, or you have very long links (moon and back a few times)

Try the same test with iperf3, see if you can characterize the buffer depth of your critical path

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