DUMMYNET(4) BSD Kernel Interfaces Manual DUMMYNET(4)
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.
The user interface for dummynet is implemented by the dnctl program, so the reader is referred to the dnctl(8) manpage for a complete
description of the capabilities of dummynet and on how to use it.
SEE ALSO
dnctl(8), setsockopt(2), bridge(4), ip(4), sysctl(8)
HISTORY
dummynet was initially implemented as a testing tool for TCP congestion control by Luigi Rizzo <luigi@iet.unipi.it>, as described on ACM Com-
puter Communication Review, Jan.97 issue. Later it has been then modified to work at the ip and bridging level, integrated with the IPFW
packet filter, and extended to support multiple queueing and scheduling policies.
Darwin October 28, 2002 Darwin