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Date:      Wed, 9 Jul 2003 13:18:59 -0500
From:      Dan Nelson <dnelson@allantgroup.com>
To:        Max Clark <max.clark@media.net>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: What ever happened with this? "eXperimental bandwidth delay product code"
Message-ID:  <20030709181859.GH39506@dan.emsphone.com>
In-Reply-To: <ILENIMHFIPIBHJLCDEHKKEEFCJAA.max.clark@media.net>
References:  <ILENIMHFIPIBHJLCDEHKKEEFCJAA.max.clark@media.net>

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In the last episode (Jul 09), Max Clark said:
> Hi all,
> 
> I am doing research on dynamic tcp tunning, what ever happened with the
> patch below?
> 
> http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&safe=off&selm=200107150943.f6F9hhx06763%40earth.backplane.com&rnum=1

It got commited to 4.x and 5.x in August 2002; the sysctls were renamed
to net.inet.tcp.inflight_debug, inflight_enable, and inflight_min. 
They're documented in the tcp(4) manpage.  Note that it's got a
specific purpose; you don't want to turn this on by default as it will
lower the throughput of individual TCP streams to prevent backlogs and
packet loss.

-- 
	Dan Nelson
	dnelson@allantgroup.com



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