From owner-freebsd-net@FreeBSD.ORG Thu Mar 4 22:32:32 2010 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 C73DB106566C for ; Thu, 4 Mar 2010 22:32:32 +0000 (UTC) (envelope-from jhellenthal@gmail.com) Received: from mail-wy0-f182.google.com (mail-wy0-f182.google.com [74.125.82.182]) by mx1.freebsd.org (Postfix) with ESMTP id 580B08FC14 for ; Thu, 4 Mar 2010 22:32:31 +0000 (UTC) Received: by wyb32 with SMTP id 32so1776673wyb.13 for ; Thu, 04 Mar 2010 14:32:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:sender:date:from:to:cc :subject:in-reply-to:message-id:references:user-agent :x-openpgp-key-id:x-openpgp-key-fingerprint:mime-version :content-type; bh=bdGUq9aausR4X6ofMpIbip/aldXuIKvfVCCPuQXxj/M=; b=A2VK5+Y1w3eTUYm4faSx/i+OsR+Ko9tJeMgWbLok+ae/WsKvvZR6dHWNL1RSmf/AnV 12l8VwoyyFCGUSEMvxFMH0lqhAi0BMgFbTgONh63hz4Xs66dLgs60ENMuSlFy0NKXrWJ oNFAED0VCtU5gd6w+ChaPKnRdxdqDYF8ZSAbc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:date:from:to:cc:subject:in-reply-to:message-id:references :user-agent:x-openpgp-key-id:x-openpgp-key-fingerprint:mime-version :content-type; b=mznXLlbZMe4bqc5/6061DRknz/rZo6llLsIs9frZ1uwUpBChdo6N8QG3Laa2Cik/Zm SC0kNy/V2zgv/Vf4l1UyvzBLMooGf6MI3JNyaRsuRkuluXVstLdBDUu44TIQXkIf98Db VPdHsG85f1SJ2JZxPriVtJg/nQXh9nKYRY8iA= Received: by 10.216.86.85 with SMTP id v63mr88814wee.32.1267741944362; Thu, 04 Mar 2010 14:32:24 -0800 (PST) Received: from ppp-23.118.dialinfree.com (ppp-23.118.dialinfree.com [209.172.23.118]) by mx.google.com with ESMTPS id m5sm3591805gve.12.2010.03.04.14.32.19 (version=TLSv1/SSLv3 cipher=RC4-MD5); Thu, 04 Mar 2010 14:32:22 -0800 (PST) Sender: "J. Hellenthal" Date: Thu, 4 Mar 2010 17:29:31 -0500 From: jhell To: frank.schuster01@web.de In-Reply-To: <2002812000@web.de> Message-ID: References: <2002812000@web.de> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) X-OpenPGP-Key-Id: 0x89D8547E X-OpenPGP-Key-Fingerprint: 85EF E26B 07BB 3777 76BE B12A 9057 8789 89D8 547E MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: =?ISO-8859-15?Q?Michael_T=FCxen?= , freebsd-net@freebsd.org Subject: Re: Wireshark, netperf and sctp problem 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: Thu, 04 Mar 2010 22:32:32 -0000 On Fri, 19 Feb 2010 02:27, frank.schuster01@ wrote: > Hi Michael, > > yeah, I see dropped packages. > But did you mean only that wireshark didn't capture all packages on ubuntu? > Or did you mean that the packages will be really dropped by the kernel? > > Because I think it's the first one, can I display the dropped packages - is there any configuration for wireshark? Yes, Menu: Statistics -> Summary > > Regards > Frank > >> Hi Frank, >> >> you might want to send both wireshark trace to me and I would have a look. >> >> If it is a bulk transfer, maybe the Ubuntu machine did not capture all packets. >> The number of dropped packets is displayed when you stop capturing. >> >> Best regards >> Michael >> >> On Feb 18, 2010, at 3:35 PM, frank.schuster01@web.de wrote: >> >>> Hello, >>> >>> I have a problem with my little network test. >>> I want to test sctp between ubuntu and freebsd. >>> On ubuntu I wrote a iptables rule which delete every tenth (10) data package. Freebsd has no firewall rules. >>> But only ubuntu sends data and freebsd only acknowledge this data (i did the test with netperf). >>> >>> On the sending side (ubuntu) I see in wireshark 24 data packages, and on the receiving side (freebsd) I saw 82 packages. >>> But I can't explain, why freebsd receives more packages as delivered from ubuntu? (I have currently only one freebsd system). >>> >>> Any ideas or something additional notes to help me? >>> >>> Is the problem by wireshark or the kernel implementation? >>> >>> Regards >>> Frank > -- jhell