From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263462AbUBQAkw (ORCPT ); Mon, 16 Feb 2004 19:40:52 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263466AbUBQAkw (ORCPT ); Mon, 16 Feb 2004 19:40:52 -0500 Received: from mailbox6.ucsd.edu ([132.239.1.58]:13840 "EHLO mailbox6.ucsd.edu") by vger.kernel.org with ESMTP id S263462AbUBQAkv (ORCPT ); Mon, 16 Feb 2004 19:40:51 -0500 Message-ID: <40316310.9080805@cs.ucsd.edu> Date: Mon, 16 Feb 2004 16:40:48 -0800 From: Diwaker Gupta Reply-To: diwaker@ucsd.edu Organization: CS @ UCSD User-Agent: Mozilla Thunderbird 0.5 (X11/20040208) X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: Linux TCP implementation X-Enigmail-Version: 0.83.3.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-MailScanner: PASSED (v1.2.8 16341 i1H0enTw023803 mailbox6.ucsd.edu) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Maybe this question has already been burnt to death, but I wasn't able to find an answer on the archives or on the FAQ. So here goes: I was just reading about the various TCP implementation -- Reno, Tahoe and Vegas in particular -- and I was wondering about the TCP implementation in Linux. AFAIK (and from looking at the source code), it seems current kernels are using a tweaked version of Reno. I'm also aware that at some point of time (2.1.x?) Vegas was introduced into the mainstream kernels, but then withdrawn. I want to gather the LKML readers' thoughts on this -- to me it seems that TCP Vegas in superior to Reno in almost all ways, and will really help to bring down network congestion substantially if a large number of senders begin to use it (read "if introduced in the mainstream kernel"). The question then is, why is TCP Vegas not here yet? And are there any plans to incorporate it in the future? -- Diwaker Gupta Graduate Student, Computer Sc. and Engg. University of California, San Diego