From owner-freebsd-net@FreeBSD.ORG Wed Dec 8 05:41:36 2004 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DA6DB16A4FE for ; Wed, 8 Dec 2004 05:41:36 +0000 (GMT) Received: from wproxy.gmail.com (wproxy.gmail.com [64.233.184.194]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7716843D41 for ; Wed, 8 Dec 2004 05:41:36 +0000 (GMT) (envelope-from chip.gwyn@gmail.com) Received: by wproxy.gmail.com with SMTP id 58so345600wri for ; Tue, 07 Dec 2004 21:41:35 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:references; b=QY7q+P7/uNsM+Q7oRjECxedqZyXgaRbLyJw9IIaRIpXaLDzLgxi773GOlY9s+6Npa1qpepg8eq21HXHGWReBl5eLEzGmG2wGJNZJZJLYlE6fV8oTeOG2leQhrgeOyouHt+Z6VRsDIJXAk+PDCqOUFK1jXNYwspZgH4QpglAujcM= Received: by 10.54.48.59 with SMTP id v59mr1143242wrv; Tue, 07 Dec 2004 21:41:35 -0800 (PST) Received: by 10.54.57.6 with HTTP; Tue, 7 Dec 2004 21:41:35 -0800 (PST) Message-ID: <64a8ad980412072141247659e9@mail.gmail.com> Date: Wed, 8 Dec 2004 00:41:35 -0500 From: chip To: freebsd-net@freebsd.org In-Reply-To: <20041207025917.43855.qmail@web42103.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit References: <20041207025917.43855.qmail@web42103.mail.yahoo.com> Subject: Re: TCPDUMP bandwidth capability X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: chip List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 08 Dec 2004 05:41:37 -0000 On Mon, 6 Dec 2004 18:59:17 -0800 (PST), asdfasdfasd asdfds wrote: > Hello, > > For those who use TCPDUMP, how much bandwidth have you > been able to monitor with it without dropping packets? > I've seen it said that BSD is much better for this > type of thing than Linux, but numbers are heard to > come by. Right the right NICs and processing power, > is line-rate 1Gbps possible? > > Thanks, > Todd Take a look at http://luca.ntop.org/Ring.pdf It has some real numbers to look at that should guide you in your quest for monitoring bliss. You might also want to check the NANOG mailing list archives (http://nanog.org) for some further information. I think there was a fairly recent discussion of this. --chip -- Just my $.02, your mileage may vary, batteries not included, etc....