From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Harris Subject: Re: TCP fast retransmit issues Date: Thu, 17 Aug 2017 14:20:58 +0100 Message-ID: <80a03ede-1b50-1458-a07f-c4ba886a2dda@redhat.com> References: <200d9a12e9f2f5791d4c5ce2d47a1239@vsen.dk> <1501069756.12695.11.camel@edumazet-glaptop3.roam.corp.google.com> <1501075881.12695.15.camel@edumazet-glaptop3.roam.corp.google.com> <20170726141847.GC1737@1wt.eu> <0b60368890bdb9aa1cf1df4bd0bf21cf@vsen.dk> <20170726143827.GD1737@1wt.eu> <0d41553d-69ac-651c-9c41-743391619a40@vsen.dk> <20170728072750.GA6437@1wt.eu> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: unlisted-recipients:; (no To-header on input) Return-path: Received: from mx1.redhat.com ([209.132.183.28]:44602 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750857AbdHQNVB (ORCPT ); Thu, 17 Aug 2017 09:21:01 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 479338F505 for ; Thu, 17 Aug 2017 13:21:01 +0000 (UTC) Received: from lap.dom.ain (unknown [10.33.32.19]) by smtp.corp.redhat.com (Postfix) with ESMTPS id B36A95C552 for ; Thu, 17 Aug 2017 13:21:00 +0000 (UTC) In-Reply-To: <20170728072750.GA6437@1wt.eu> Content-Language: en-US Sender: netdev-owner@vger.kernel.org List-ID: On 28/07/17 08:27, Willy Tarreau wrote: > I didn't want to suggest names but since you did it first ;-) Indeed it's > mostly on the same device that I've been bothered a lot by their annoying > randomization. I used to know by memory the exact command to type to disable > it, but I don't anymore (something along "no randomization"). https://supportforums.cisco.com/document/48551/single-tcp-flow-performance-firewall-services-module-fwsm#TCP_Sequence_Number_Randomization_and_SACK https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk74640 -- Cheers, Jeremy