> On 19 May, 2019, at 1:36 am, David P. Reed <[email protected]> wrote: > > Pardon, but cwnd should NEVER be larger than the number of forwarding hops > between source and destination. > Kleinrock and students recently proved that the optimum cwnd for both > throughput and minimized latency is achieved when there is one packet or less > in each outbound queue from source to destination (including cross traffic - > meaning other flows sharing the same outbound queue.
This argument holds only if time-of-flight *between* nodes is negligible. Trivially, a geosynchronous satellite hop adds only two nodes but approximately half a second to the one-way path delay, with potentially thousands of packets existing only as radio waves in the distance between, not in a queue. - Jonathan Morton _______________________________________________ Bloat mailing list [email protected] https://lists.bufferbloat.net/listinfo/bloat
