Date: Sat, 25 Aug 2001 02:32:50 -0700 From: "Ted Mittelstaedt" <tedm@toybox.placo.com> To: "Cleto Pescia" <cleto@eurisco.com>, <freebsd-questions@FreeBSD.ORG> Subject: RE: Network performance analysis with FreeBSD Message-ID: <002e01c12d48$e8b11860$1401a8c0@tedm.placo.com> In-Reply-To: <Pine.BSF.4.33.0108242211570.214-100000@venus.e-link.ch>
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Hi Cleto, What serial adapters are in those NT boxes? You might be able to reload FreeBSD on them, it supports several. What I suggest as a first step to instrumenting the WAN is to make sure SNMP is enabled on all NT boxes acting as routers then set up MRTG on the FreeBSD system and start tracking the link utilization. For what you want a traceroute is almost worthless. Ted Mittelstaedt tedm@toybox.placo.com Author of: The FreeBSD Corporate Networker's Guide Book website: http://www.freebsd-corp-net-guide.com >-----Original Message----- >From: owner-freebsd-questions@FreeBSD.ORG >[mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Cleto Pescia >Sent: Friday, August 24, 2001 1:32 PM >To: freebsd-questions@FreeBSD.ORG >Subject: Network performance analysis with FreeBSD > > >Hello, > >I am trying to help a customer track down where the bottlenecks are in his >WAN. The problem is that the main firewall, as well as other key points in >the WAN structure are NT servers, which I don't have the complete >access to. (OK, please don't tell me *those* NT boxes are the >bottlenecks -- both the customer and I know well that NT might not have >been the wisest choice when the WAN was built three years ago, but that's >the way it is and things aren't going to change overnight...). >Last year I slowly began introducing FreeBSD boxes for mail and >database management tasks, with excellent results so far. >Now, my question is: Are there any tools that might be useful to take >timings of the WAN from a FreeBSD 4.1-RELEASE system that sits behind the >firewall? I'm thinking about something that could show how much time it >takes for a packet to reach a given point from the FreeBSD box. >traceroute perhaps? But how could I then plot the results in a meaningful >way, i.e. that will help us improve the WAN topology, as far as >technically possible. > >Thanks to everybody in advance for any pointer. > >Cleto > > >To Unsubscribe: send mail to majordomo@FreeBSD.org >with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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