From owner-freebsd-net@FreeBSD.ORG Wed May 2 22:39:44 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 74CBC16A402 for ; Wed, 2 May 2007 22:39:44 +0000 (UTC) (envelope-from zec@icir.org) Received: from xaqua.tel.fer.hr (xaqua.tel.fer.hr [161.53.19.25]) by mx1.freebsd.org (Postfix) with ESMTP id 071AA13C448 for ; Wed, 2 May 2007 22:39:43 +0000 (UTC) (envelope-from zec@icir.org) Received: by xaqua.tel.fer.hr (Postfix, from userid 20006) id D81B19B649; Thu, 3 May 2007 00:08:30 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.1.7 (2006-10-05) on xaqua.tel.fer.hr X-Spam-Level: X-Spam-Status: No, score=-4.3 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.1.7 Received: from [192.168.200.106] (zec2.tel.fer.hr [161.53.19.79]) by xaqua.tel.fer.hr (Postfix) with ESMTP id C12119B646; Thu, 3 May 2007 00:08:29 +0200 (CEST) From: Marko Zec To: freebsd-net@freebsd.org Date: Thu, 3 May 2007 00:08:26 +0200 User-Agent: KMail/1.9.6 References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200705030008.26978.zec@icir.org> Cc: youshi10@u.washington.edu 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 22:39:44 -0000 On Wednesday 02 May 2007 23:40:35 youshi10@u.washington.edu wrote: > 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? You can use IMUNES for emulating arbitrarily complex network topologies with hundreds of nodes, with each virtual node beheaving like an independent FreeBSD box, if that's what you are after. www.imunes.net -> it's still based on an aging but rock solid 4.11 kernel, with a version that will run on 7.0-CURRENT expected to become available in the next month or so. Marko > 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 > > _______________________________________________ > 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"