.\" $NetBSD: altq.4,v 1.2.34.1 2018/03/13 11:15:15 martin Exp $
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.\" Copyright (c) 2011 Jukka Ruohonen <jruohonen@iki.fi>
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.Dd March 08, 2018
.Dt ALTQ 4
.Os
.Sh NAME
.Nm altq
.Nd alternate queuing framework
.Sh SYNOPSIS
.Cd options ALTQ
.Cd options ALTQ_BLUE
.Cd options ALTQ_CBQ
.Cd options ALTQ_CDNR
.Cd options ALTQ_FIFOQ
.Cd options ALTQ_FLOWVALVE
.Cd options ALTQ_HFSC
.Cd options ALTQ_LOCALQ
.Cd options ALTQ_PRIQ
.Cd options ALTQ_RED
.Cd options ALTQ_RIO
.Cd options ALTQ_WFQ
.Sh DESCRIPTION
The
.Nm
framework provides several disciplines for queuing outgoing network packets.
While traffic shaping is perhaps the most prominent example,
.Nm
provides also other measures related to QoS.
The framework has been integrated to the
.Xr pf 4
packet filter since
.Nx 4.0 .
.Pp
At the implementation level
.Nm
modifies the interface packet queues.
Therefore the driver modifications described in
.Xr altq 9
are required in order to use a certain network card with
.Nm .
.Sh FILES
.Bd -literal
/dev/altq
.Ed
.Sh SEE ALSO
.Xr pf 4 ,
.Xr altq.conf 5 ,
.Xr altqd 8 ,
.Xr altq 9
.Rs
.%A Kenjiro Cho
.%T Fitting theory into reality in the ALTQ case
.%D March, 2004
.%C Taipei, Taiwan
.%O Asia BSD conference
.%U http://www.sonycsl.co.jp/person/kjc/papers/fittingtheory.pdf
.Re
.\" .Sh HISTORY
.\"
.\" XXX: Write this.