Provided by: shapecfg_2.2.12-0.7.3-1_i386
shapecfg - Traffic Shaper for Linux
shapecfg attach shaper-device other-device
shapecfg speed device speed
shapecfg is a program to limit bandwidth on a virtual network
A shaper device is configured using the shapecfg program. Typically
you will do something like this:
shapecfg attach shaper0 eth1
shapecfg speed shaper0 64000
ifconfig shaper0 myhost netmask 255.255.255.240 broadcast 188.8.131.52 up
route add -net some.network netmask a.b.c.d dev shaper0
The shaper should have the same IP address as the device it is attached
to for normal use.
The shaper shapes transmitted traffic. It’s rather impossible to shape
received traffic except at the end (or a router) transmitting it.
Gated/routed/rwhod/mrouted all see the shaper as an additional device
and will treat it as such unless patched. Note that for mrouted you can
run mrouted tunnels via a traffic shaper to control bandwidth usage.
The shaper is device/route based. This makes it very easy to use with
any setup BUT less flexible. You may well want to combine this patch
with Mike McLagan <firstname.lastname@example.org>’s patch to allow routes to be
specified by source/destination pairs.
There is no "borrowing" or "sharing" scheme. This is a simple traffic
limiter. I’d like to implement Van Jacobson and Sally Floyd’s CBQ
architecture into Linux one day (maybe in 2.1 sometime) and do this
(CBQ was added to Linux in the 2.1 series. On Debian systems, see the
iproute package for the necessary userspace tools. Support for the
simple traffic shaper is still present as of 2.4, and, while it is less
flexible, most people will probably find it easier to set up.)
More documentation can be found in /usr/share/doc/shapecfg/.
This manual page was stitched together from the original author’s
documentation by Christoph Lameter <email@example.com>, and added
to by Colin Watson <firstname.lastname@example.org>, for the Debian GNU/Linux
system (but may be used by others).