North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Latency generator?
On Wed, Jun 25, 2003 at 12:48:29PM -0400, Temkin, David quacked: > Does anyone know of any free, cheap, or potentially rentable latency > generators? Ideally I'd like something that just sits between two ethernet > devices to induce layer 2/3 latency in traffic, but am open to any > options... Dummynet. We use it at Emulab (http://www.emulab.net/) to do exactly what you're describing. You have to use it in conjunction with the bridging code, and then you can just do it. By default, it still uses the ipfw firewall rules to match traffic, so it only delays IP, but that could probably be fixed with a little hacking if you also want to delay ARP and other things. Built into FreeBSD. Should work mostly out of the box. It'll also do traffic shaping and whatnot. Your .signature disclaimer was longer than your message, by the way. ;-) -Dave -- work: [email protected] me: [email protected] MIT Laboratory for Computer Science http://www.angio.net/ I do not accept unsolicited commercial email. Do not spam me.
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