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Cc: bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Bloat] I feel an urge to update this
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>> using fq_codel on every bottleneck link will make TCP work pretty well
>> across that entire range of connectivity
>
> Well, that'll fix one thing, but for instance the IW4 and IW10 debate.
> I'm sure IW10 works *great* on a 100/100 megabit/s connection when the
> server is 10GE connected, but it's less than optimal for a 0.1 megabit/s
> connection.
>
> So why can't the client hint the server that, hmm, I seem to be on a
> fairly slow connection here, don't send me too much at once? Or it can
> hint that hey, it seems most times I get pretty large TCP window sizes,
> so it's ok to start with IW10?

Well, there has been such a thing present in TCP from "The Beginning" 
though not named as such.  Such a client could always advertise a 
smaller (initial) receive window...  One which would allow only IW3 or 
whatever value was appropriate.

rick jones