From owner-freebsd-net@FreeBSD.ORG  Tue May 23 18:58:16 2006
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
X-Original-To: freebsd-net@freebsd.org
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id A150616A6AB
	for <freebsd-net@freebsd.org>; Tue, 23 May 2006 18:58:16 +0000 (UTC)
	(envelope-from mallman@icir.org)
Received: from wyvern.icir.org (wyvern.icir.org [192.150.187.14])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 5BFCF43D45
	for <freebsd-net@freebsd.org>; Tue, 23 May 2006 18:58:16 +0000 (GMT)
	(envelope-from mallman@icir.org)
Received: from guns.icir.org (adsl-69-222-35-58.dsl.bcvloh.ameritech.net
	[69.222.35.58])
	by wyvern.icir.org (8.12.11/8.12.11) with ESMTP id k4NIwFs5041465;
	Tue, 23 May 2006 11:58:15 -0700 (PDT)
	(envelope-from mallman@icir.org)
Received: from lawyers.icir.org (guns.icir.org [69.222.35.58])
	by guns.icir.org (Postfix) with ESMTP
	id 3224377AC21; Tue, 23 May 2006 14:58:14 -0400 (EDT)
Received: from lawyers.icir.org (localhost [127.0.0.1])
	by lawyers.icir.org (Postfix) with ESMTP id E0229416D24;
	Tue, 23 May 2006 14:57:15 -0400 (EDT)
To: mag@intron.ac
From: Mark Allman <mallman@icir.org>
In-Reply-To: <courier.447359FC.0000A9DF@intron.ac> 
Organization: ICSI Center for Internet Research (ICIR)
Song-of-the-Day: Bad to the Bone
MIME-Version: 1.0
Content-Type: multipart/signed; boundary="=_bOundary";
	micalg=pgp-sha1; protocol="application/pgp-signature"
Date: Tue, 23 May 2006 14:57:15 -0400
Sender: mallman@icir.org
Message-Id: <20060523185715.E0229416D24@lawyers.icir.org>
Cc: freebsd-net@freebsd.org, Marcin Jessa <lists@yazzy.org>
Subject: Re: How to Quicken TCP Re-transmission? 
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
Reply-To: mallman@icir.org
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 23 May 2006 18:58:16 -0000

--=_bOundary
Content-Type: text/plain
Content-Disposition: inline


>      Thank you for your reminder. Actually, I understand you and
> RFC 2018. What I really concern is how wide support (and being enabled
> by default) SACK has obtained. For we do not always transfer data
> between hosts running FreeBSD and maintained by network expert.

SACK is quite widely deployed.  See:

  Alberto Medina, Mark Allman, Sally Floyd.  Measuring the Evolution of
  Transport Protocols in the Internet.  ACM Computer Communication
  Review, 35(2), April 2005.
  http://www.icir.org/mallman/papers/tcp-evo-ccr05.ps

allman




--=_bOundary
Content-Type: application/pgp-signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2.2 (Darwin)

iD8DBQFEc1sLWyrrWs4yIs4RAkmsAKCXlaMvQ7/gS00emF9DBd/oSIFYTACfYG7a
Sl065NkDOWHWAVHUlTIUuJ4=
=100R
-----END PGP SIGNATURE-----
--=_bOundary--