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Command: altq | Section: 4 | Source: NetBSD | File: altq.4
ALTQ(4) FreeBSD Kernel Interfaces Manual ALTQ(4)
NAME
altq - alternate queuing framework
SYNOPSIS
options ALTQ
options ALTQ_BLUE
options ALTQ_CBQ
options ALTQ_CDNR
options ALTQ_FIFOQ
options ALTQ_FLOWVALVE
options ALTQ_HFSC
options ALTQ_LOCALQ
options ALTQ_PRIQ
options ALTQ_RED
options ALTQ_RIO
options ALTQ_WFQ
DESCRIPTION
The altq system is a framework which provides several disciplines for
queuing outgoing network packets. While traffic shaping is perhaps the
most prominent example, altq provides also other measures related to QoS.
The framework has been integrated to the pf(4) packet filter since
NetBSD 4.0.
At the implementation level altq modifies the interface packet queues.
Therefore the driver modifications described in altq(9) are required in
order to use a certain network card with altq.
FILES
/dev/altq
SEE ALSO
pf(4), altq.conf(5), altqd(8), altq(9)
Kenjiro Cho, Fitting theory into reality in the ALTQ case,
http://www.sonycsl.co.jp/person/kjc/papers/fittingtheory.pdf, Taipei,
Taiwan, March, 2004, Asia BSD conference.
HISTORY
The altq system first appeared in March 1997 and found its home in the
KAME project (http://www.kame.net). It was imported into NetBSD 1.6.
CAVEATS
Please note that you must compile pf(4) in the kernel, using the PF
module(7) alongside altq built in the kernel will not work.
FreeBSD 14.1-RELEASE-p8 March 20, 2018 FreeBSD 14.1-RELEASE-p8