From: "Temkin, David" <temkin@sig.com>
Date: Wed, 25 Jun 2003 12:48:29 -0400
Sender: owner-nanog@merit.eduDoes 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.