From owner-freebsd-net@FreeBSD.ORG Thu May 3 12:19:35 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 7FF8C16A400 for ; Thu, 3 May 2007 12:19:35 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from turion.vk2pj.dyndns.org (c220-239-3-125.belrs4.nsw.optusnet.com.au [220.239.3.125]) by mx1.freebsd.org (Postfix) with ESMTP id 099C413C44C for ; Thu, 3 May 2007 12:19:34 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from turion.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by turion.vk2pj.dyndns.org (8.14.1/8.14.1) with ESMTP id l43CJYXY007315; Thu, 3 May 2007 22:19:34 +1000 (EST) (envelope-from peter@turion.vk2pj.dyndns.org) Received: (from peter@localhost) by turion.vk2pj.dyndns.org (8.14.1/8.14.1/Submit) id l43CJXRK007314; Thu, 3 May 2007 22:19:33 +1000 (EST) (envelope-from peter) Date: Thu, 3 May 2007 22:19:33 +1000 From: Peter Jeremy To: youshi10@u.washington.edu Message-ID: <20070503121933.GP818@turion.vk2pj.dyndns.org> References: <4638C6B6.4050503@mac.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="JYK4vJDZwFMowpUq" Content-Disposition: inline In-Reply-To: X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.14 (2007-02-12) Cc: freebsd-net@freebsd.org 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: Thu, 03 May 2007 12:19:35 -0000 --JYK4vJDZwFMowpUq Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2007-May-02 14:40:35 -0700, youshi10@u.washington.edu wrote: >Hmmm... ok, expanding on that what I was looking for was a means to=20 >simulate semi-realtime delays across a virtual network with 4+ virtual=20 >machines. Is it possible to use Dummynet in this case, or do I need to loo= k=20 >into something else? Dummynet can provide bandwidth restriction as well as msec-granularity delays on packets being pushed through a pipe. You can glue together multiple pipes (packets go through several pipes with different characteristics). I'm not sure what your virtual machines need to do so I can't comment whether FreeBSD would be useable. >Other conditions I planned on imposing are non-locking NFS (causes a lot o= f=20 >issues here with files at work), Should be OK > and have SUSE 32-bit clients (host OS of choice at work) FreeBSD doesn't have SuSE clients but should be able to run them in its Linux emulation layer. --=20 Peter Jeremy --JYK4vJDZwFMowpUq Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) iD8DBQFGOdNV/opHv/APuIcRAnJuAJ4nyeUUtuxqKocve2i4iuFSvfrzhACcD/Hr flCBVVzdte4t31oJkjz13vc= =ZGnx -----END PGP SIGNATURE----- --JYK4vJDZwFMowpUq--