From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rick Jones Subject: lowpri - RTO for unidirectional reciever Date: Mon, 08 Dec 2008 18:02:01 -0800 Message-ID: <493DD199.6080600@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit To: Linux Network Development list Return-path: Received: from g1t0028.austin.hp.com ([15.216.28.35]:34602 "EHLO g1t0028.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751086AbYLICCI (ORCPT ); Mon, 8 Dec 2008 21:02:08 -0500 Received: from tardy.cup.hp.com (tardy.cup.hp.com [16.89.104.60]) by g1t0028.austin.hp.com (Postfix) with ESMTP id 562051C139 for ; Tue, 9 Dec 2008 02:02:04 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by tardy.cup.hp.com (8.9.3 (PHNE_28810)/8.9.3 SMKit7.02) with ESMTP id SAA16667 for ; Mon, 8 Dec 2008 18:02:02 -0800 (PST) Sender: netdev-owner@vger.kernel.org List-ID: Folks - I was going through old email to do a status report and was reminded of a discussion in netperf-talk that might be of interest to people here since it involved a Linux receiver: http://www.netperf.org/pipermail/netperf-talk/2008-November/000478.html A Mac OSX bug was found/presumed, but there was an interesting behaviour on the linux receiver side as well - the rtx of the ignored FIN happened after what IIRC is the initial RTO. It suggested that the ACK of the SYN|ACK didn't update the rtt estimate or if it did, didn't so so very much. Bug? Feature? No idea, but food for thought. rick jones