From owner-freebsd-net@FreeBSD.ORG Wed May 2 21:40:36 2007 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id BB1F416A40A for ; Wed, 2 May 2007 21:40:36 +0000 (UTC) (envelope-from youshi10@u.washington.edu) Received: from mxout4.cac.washington.edu (mxout4.cac.washington.edu [140.142.33.19]) by mx1.freebsd.org (Postfix) with ESMTP id 9A97C13C4B8 for ; Wed, 2 May 2007 21:40:36 +0000 (UTC) (envelope-from youshi10@u.washington.edu) Received: from hymn01.u.washington.edu (hymn01.u.washington.edu [140.142.8.55]) by mxout4.cac.washington.edu (8.13.7+UW06.06/8.13.7+UW07.03) with ESMTP id l42LeaVv003743 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 2 May 2007 14:40:36 -0700 Received: from localhost (localhost [127.0.0.1]) by hymn01.u.washington.edu (8.13.7+UW06.06/8.13.7+UW07.03) with ESMTP id l42LeZvG030198 for ; Wed, 2 May 2007 14:40:35 -0700 X-Auth-Received: from [192.55.52.2] by hymn01.u.washington.edu via HTTP; Wed, 02 May 2007 14:40:35 PDT Date: Wed, 2 May 2007 14:40:35 -0700 (PDT) From: youshi10@u.washington.edu To: freebsd-net@freebsd.org In-Reply-To: <4638C6B6.4050503@mac.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-PMX-Version: 5.3.1.294258, Antispam-Engine: 2.5.1.298604, Antispam-Data: 2007.5.2.142034 X-Uwash-Spam: Gauge=IIIIIII, Probability=7%, Report='SUPERLONG_LINE 0.05, NO_REAL_NAME 0, __CT 0, __CT_TEXT_PLAIN 0, __HAS_MSGID 0, __MIME_TEXT_ONLY 0, __MIME_VERSION 0, __SANE_MSGID 0' Subject: Re: Unix friendly network testbench for FreeBSD? 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: Wed, 02 May 2007 21:40:36 -0000 On Wed, 2 May 2007, Chuck Swiger wrote: > youshi10@u.washington.edu wrote: >> Hi, >> I'm looking for a network testbench / simulator to stimulate known >> networking conditions to test out a component for a product at work. >> I was wondering if there was a network simulator available (preferably >> open source) that's FreeBSD / Linux compatible which I can simulate as real >> of a network as possible on a virtual machine / network. > > Dummynet or ALTQ might be good starting points, as is netgraph, depending on > just what you're trying to do. There are also userland benchmark/analysis > tools like flood pinging, netperf, & ab ("apache bench"). > > -- > -Chuck Hmmm... ok, expanding on that what I was looking for was a means to simulate semi-realtime delays across a virtual network with 4+ virtual machines. Is it possible to use Dummynet in this case, or do I need to look into something else? Other conditions I planned on imposing are non-locking NFS (causes a lot of issues here with files at work), and have SUSE 32-bit clients (host OS of choice at work) if possible connect to the host machine and with one another, executing make jobs. Any further suggestions on how to do this? Thanks, -Garrett