2 ms·
Pure speculation, but maybe most TCP implementations are ECN-aware while custom UDP transports aren't, thus making the former more responsive to congestion with
by the8472 8y ago
Pure speculation, but maybe most TCP implementations are ECN-aware while custom UDP transports aren't, thus making the former more responsive to congestion without forcing the routers to drop packets?
- riobard 8y agoEven without ECN, routers can indirectly slow down sending sides by dropping TCP packets because most TCP implementations behave politely. QUIC also adapts to packet loss, but I guess it's those other fire-and-forget-style UDP traffic that gets dropped, taking QUIC down as casualty.