nanog mailing list archives
Re: Latency generator?
From: "Kevin Oberman" <oberman () es net>
Date: Wed, 25 Jun 2003 09:59:23 -0700
From: "Temkin, David" <temkin () sig com> Date: Wed, 25 Jun 2003 12:48:29 -0400 Sender: owner-nanog () merit edu 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(4)? It's a standard part of FreeBSD and may be in other BSDs. It's very configurable to generate delays, congestion like behavior and such. NAME dummynet - traffic shaper, bandwidth manager and delay emulator DESCRIPTION dummynet is a system facility that permits the control of traffic going through the various network interfaces, by applying bandwidth and queue size limitations, implementing different scheduling and queue management policies, and emulating delays and losses. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman () es net Phone: +1 510 486-8634
Current thread:
- Latency generator? Temkin, David (Jun 25)
- Re: Latency generator? Rick Ernst (Jun 25)
- Re: Latency generator? Kevin Oberman (Jun 25)
- Re: Latency generator? David G. Andersen (Jun 25)
- Re: Latency generator? Bradley Dunn (Jun 25)
- Re: Latency generator? David Barak (Jun 25)
- Re: Latency generator? Andy Dills (Jun 25)