From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH] tcp: Implement a two-level initial RTO as per draft RFC 2988bis-02. Date: Wed, 18 May 2011 22:36:22 -0400 (EDT) Message-ID: <20110518.223622.1525088601595365235.davem@davemloft.net> References: <20110518.155200.801089483916944725.davem@davemloft.net> <1305771744-83951-1-git-send-email-tsunanet@gmail.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: kuznet@ms2.inr.ac.ru, pekkas@netcore.fi, jmorris@namei.org, yoshfuji@linux-ipv6.org, kaber@trash.net, hagen@jauu.net, eric.dumazet@gmail.com, alexander.zimmermann@comsys.rwth-aachen.de, netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: tsunanet@gmail.com Return-path: In-Reply-To: <1305771744-83951-1-git-send-email-tsunanet@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Benoit Sigoure Date: Wed, 18 May 2011 19:22:24 -0700 > Prior to this patch, Linux would always use 3 seconds (compile-time > constant) as the initial RTO. Draft RFC 2988bis-02 proposes to tune > this down to 1 second and, in case of a timeout during the TCP 3WHS, > revert the RTO back up to 3 seconds when data transmission begins. We just had a discussion where it was determined that changes to these settings are "network specific" and therefore that if it is appropriate at all (I'm still not convinced) it is only suitable as a routing metric.