From owner-freebsd-net@FreeBSD.ORG Sat May 2 18:04:20 2009 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 714DE1065672 for ; Sat, 2 May 2009 18:04:20 +0000 (UTC) (envelope-from wzuber@mac.com) Received: from asmtpout022.mac.com (asmtpout022.mac.com [17.148.16.97]) by mx1.freebsd.org (Postfix) with ESMTP id 591C78FC14 for ; Sat, 2 May 2009 18:04:19 +0000 (UTC) (envelope-from wzuber@mac.com) MIME-version: 1.0 Received: from [172.16.2.74] ([71.118.144.9]) by asmtp022.mac.com (Sun Java(tm) System Messaging Server 6.3-8.01 (built Dec 16 2008; 32bit)) with ESMTPA id <0KJ100F4H0R68800@asmtp022.mac.com> for freebsd-net@freebsd.org; Sat, 02 May 2009 10:04:18 -0700 (PDT) Message-id: <7AF3433E-1760-400D-BF04-1C75C838F371@mac.com> From: Wes Zuber To: Sam Wun In-reply-to: <736c47cb0905020928o23062742sced92fc20f351eb3@mail.gmail.com> Content-type: multipart/signed; boundary=Apple-Mail-671-983652833; micalg=sha1; protocol="application/pkcs7-signature" Date: Sat, 02 May 2009 10:04:17 -0700 References: <736c47cb0905020928o23062742sced92fc20f351eb3@mail.gmail.com> X-Mailer: Apple Mail (2.930.3) X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-net@freebsd.org Subject: Re: tcp problem with freebsd 7.1? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 02 May 2009 18:04:20 -0000 --Apple-Mail-671-983652833 Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit We have had some issues with NIC drivers in the past.. what Nics are you running. Specifically some Nics need to have the CRC checks disabled. This also sounds like state is not being kept on the IP Filter if you are running one. Do you have more details? --Wes On May 2, 2009, at 9:28 AM, Sam Wun wrote: > Hi, > > With regarding to the following statement, is there any serious tcp > problem with freebsd 7.1? > > "We recently found our new FreeBSD server (located in some foreign > region) has poor network performance. After doing some tcpdump and > iperf testing, we found that out-of-order TCP packets are not inserted > into queue. > > This is an 100Mbps line, and TSO is disabled. " > > Very appreciate for any suggestion. > > Thanks > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" --Apple-Mail-671-983652833--