From mboxrd@z Thu Jan 1 00:00:00 1970 From: NandaKumar Subject: Re: Default TCP Options creating problems Date: Sat, 28 Jan 2012 08:11:19 +0530 Message-ID: <4F23604F.90402@gmail.com> References: <4F22B17A.2080809@gmail.com> <1327675774.2220.13.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <4F22C81A.8090800@gmail.com> <1327677618.32615.1.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, davem@davemloft.net To: Eric Dumazet Return-path: Received: from mail-pw0-f46.google.com ([209.85.160.46]:49936 "EHLO mail-pw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752351Ab2A1CAn (ORCPT ); Fri, 27 Jan 2012 21:00:43 -0500 Received: by pbaa10 with SMTP id a10so2115475pba.19 for ; Fri, 27 Jan 2012 18:00:42 -0800 (PST) In-Reply-To: <1327677618.32615.1.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> Sender: netdev-owner@vger.kernel.org List-ID: On 1/27/2012 8:50 PM, Eric Dumazet wrote: > If you disable all options but tcp timestamps, what happens ? No, it doesn't work. I disabled SACK and window scaling. The connection gets established immediately once I disable tcp_timestamps. It may be problem with ISP. I am still awaiting their response. Not sure what sort of filtering they use for TCP Timestamps. Thank you for your time. Regards, Nandakumar