2 .\" Copyright (c) 2004 Max Laier <mlaier@FreeBSD.org>
3 .\" All rights reserved.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
8 .\" 1. Redistributions of source code must retain the above copyright
9 .\" notice, this list of conditions and the following disclaimer.
10 .\" 2. Redistributions in binary form must reproduce the above copyright
11 .\" notice, this list of conditions and the following disclaimer in the
12 .\" documentation and/or other materials provided with the distribution.
14 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 .\" $FreeBSD: src/share/man/man4/altq.4,v 1.16 2006/03/02 19:45:59 thompsa Exp $
27 .\" $DragonFly: src/share/man/man4/altq.4,v 1.3 2006/03/19 17:31:08 swildner Exp $
34 .Nd "alternate queuing of network packets"
42 .\".Cd options ALTQ_CDNR
47 framework provides several disciplines for queuing outgoing network packets.
48 This is done by modifications to the interface packet queues.
53 The user interface for
57 utility, so please refer to the
61 manpages for a complete description of the
63 capabilities and how to use it.
65 The following options in the kernel configuration file are related to
69 .Bl -tag -width ".Dv ALTQ_DEBUG" -compact
75 .Dq "Class Based Queuing"
79 .Dq "Random Early Detection"
83 .Dq "Random Early Drop"
87 .Dq "Hierarchical Packet Scheduler"
90 .\"Build the traffic conditioner.
91 .\"This option is meaningless at the moment as the conditioner is not used by
92 .\"any of the available disciplines or consumers.
95 .Dq "Priority Queuing"
98 Required if the TSC is unusable.
100 Enable additional debugging facilities.
105 cannot be loaded as kernel modules.
106 In order to use a certain discipline you have to build it into a custom
110 interface, that is required for the configuration process of
112 can be loaded as a module.