On Thu, 2011-03-17 at 04:26 +0200, Jonathan Morton wrote: > For the benefit of the 3G folks, here are some helpful axioms to discuss: > > 1) Buffering more than a couple of seconds of data (without employing > AQM) is unhelpful, and will actually increase network load without > increasing goodput. Unless there is a compelling reason, you should > try to buffer less than a second. > > This is because congestion and packet-loss information takes longer to > influence existing flows, and new flows are more difficult to start. > After about 3 seconds of no information, most TCPs will start > retransmission - regardless of whether the packets were physically > lost, or are simply languishing in a multi-megabyte buffer somewhere.
So initialRTO is specced currently to be 3 seconds, with a small but non-trivial effort under way to reduce that, but once established connections have a minimum RTO of less than or equal to a second don't they? rick jones _______________________________________________ Bloat mailing list [email protected] https://lists.bufferbloat.net/listinfo/bloat
