from cbq.init:
# The configuration file may contain the following parameters:
#
### Device parameters
#
# DEVICE=,[,] mandatory
# DEVICE=eth0,10Mbit,1Mbit
#
# is the name of the interface you want to control
# traffic on, e.g. eth0
# is the physical bandwidth of the device, e.g. for
# ethernet 10Mbit or 100Mbit, for arcnet 2Mbit
# is tuning parameter that should be proportional to
# . As a rule of thumb: = / 10
#
# When you have more classes on one interface, it is enough to specify
# [and ] only once, therefore in other files you only
# need to set DEVICE=.
#
### Class parameters
#
# RATE= mandatory
# RATE=5Mbit
#
# Bandwidth allocated to class. Traffic going through the class is
# shaped to conform to the given rate. You can use Kbit, Mbit or
# bps, Kbps and Mbps as suffices.miting speed of the shaper.
# You can use Kbit, Mbit or bps, Kbps, Mbps as suffixes.
#
# WEIGHT= mandatory
# WEIGHT=500Kbit
#
# Tuning parameter that should be proportional to RATE. As a rule
# of thumb, use WEIGHT ~= RATE / 10.
#
# PRIO=<1-8> optional, default 5
# PRIO=5
#
# Priority of class traffic. The higher the number, the lesser
# the priority. Priority of 5 is just fine.
#
# PARENT= optional, default not set
# PARENT=1280
#
# Specifies ID of the parent class to which you want this class be
# attached. You might want to use LEAF=none for the parent class as
# mentioned below. By using this parameter and carefully ordering the
# configuration files, it is possible to create simple hierarchical
# structures of CBQ classes. The ordering is important so that parent
# classes are constructed prior to their children.
#
# Sample configuration file: cbq-1280.My_first_shaper
#
# --------------------------------------------------------------------------
# DEVICE=eth0,10Mbit,1Mbit
# RATE=128Kbit
# WEIGHT=10Kbit
# PRIO=5
# RULE=192.128.1.0/24
# --------------------------------------------------------------------------
#
# The configuration says that we will control traffic on 10Mbit ethernet
# device eth0 and the traffic going to network 192.168.1.0 will be
# processed with priority 5 and shaped to rate of 128Kbit.
#