On Mon, 15 Sept 2025 at 18:42, Pedro Prado via NANOG <nanog@lists.nanog.org> wrote:
Btw, I’ve heard of duplication even over the _same link_ because it was detected to be lossy, just to increase the odds one of the duplicates would make it.
Sure if you misbehave you can win congested internet battles, provided most others do not misbehave. But it's likely not a reasonable place to start your product design from. That is, let's assume the original QUIC which does some sort of dynamic FEC to increase redundancy to combat loss. This is fine if loss is due to an unreliable link or such. But if, as the common case is, loss is due to congestion, then it'll only make things worse when everyone else uses the same strategy, since as packet loss increases demand for capacity increases with it as form of increased redundancy. -- ++ytti