[e2e] Why do we need TCP flow control (rwnd)?
jg at laptop.org
Wed Jul 2 07:06:58 PDT 2008
On Tue, 2008-07-01 at 08:22 -0700, Fred Baker wrote:
> We have not just predicted congestive collapse, we have experienced
> it. Those events, the most well-known one being the collapse of the 56
> KBPS NSFNet in 1987-1988 and the more recent instances being local
> phenomena with under-provisioned networks, don't result from silly
> assumptions. They originate from traffic from real applications with
> real humans behind them on real networks.
Heh. Some of us still have scars on their backs from this experience:
it caused the formation of the X Consortium (since we no longer believed
distributed development was viable), which in the long term was to X11's
Congestion collapse is not just a predicted phenomena, but one which
we've experienced. It got so bad we were reduced to FEDX of mag tapes
for a while.
Jim Gettys <jg at laptop.org>
One Laptop Per Child
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