Re: [tcpm] New Version Notification for draft-you-tcpm-configuring-tcp-initial-window-00.txt

[Joe Touch <[e-mail]>]

A few points on this thread:

- 2140 includes both ensemble and temporal sharing
	ensemble happens only when you have a concurrent
	set of connections, at which point you subtract from
	the window of the current ones to give to the new one

	temporal includes going back to the same place - subnet
	or specific IP - and can involve aging the window

- we had a project here to look at whether the window could be predicted
based on past behavior (e.g., time-based patterns, either time-of-day,
day-of-week, etc.):
	http://www.isi.edu/aln/
The conclusion was that such patterns were not evident (at least when we
did the experiment).

- IW cannot be determined at the time of the connection per se
The only way to do so would be to send IW segments into the net and see
if they get there, which isn't so much a probe as just using that value
as the initial window anyway.

I continue to believe that IW can be adapted over loooong periods of
time using information on past connections as network behavior evolves
as per draft-touch-tcpm-automatic-iw-03.txt, but more experience is
definitely needed.

Joe