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Topic: ALTQ

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	PF: Packet Queueing and Prioritization
		altq on fxp0 priq bandwidth 610Kb queue { std_out, ssh_im_out, dns_out, \ tcp_ack_out } # define the parameters for the child queues.
		altq on dc0 cbq bandwidth 100% queue { net_int, www_int } # define the parameters for the child queues.
		altq on fxp1 cbq bandwidth 100% queue { internal_dmz, net_dmz } # define the parameters for the child queues.
	www.openbsd.org /faq/pf/queueing.html (3863 words)

	ALTQ - Wikipedia, the free encyclopedia
		ALTQ is an ALTernate Queueing framework for BSD UNIX.
		ALTQ provides queueing disciplines and other QoS related components required to realize resource-sharing and Quality of Service.
		ALTQ is included in the base distribution of FreeBSD, NetBSD, and is integrated into the PF packet filter of OpenBSD.
	en.wikipedia.org /wiki/ALTQ (283 words)

	EuroBSDCon 2004: Talks as list
		ALTQ, standing for "ALTernate Queueing", is a framework of (network) queueing disciplines and related components required to offer resource sharing and Quality of Service capabilities.
		Although in the recent years there were some attempts to push the ALTQ sources into the FreeBSD CVS tree, things slowed down due to unavailable developing work-time and major changes in the networking stack being scheduled in the 5-CURRENT tree.
		Some of the biggest challenges that ALTQ poses are the modifications to the network drivers needed to enable the shaping of the packet flows and figuring out the locking changes needed for the new fine-grained architecture of the -CURRENT branch.
	2004.eurobsdcon.org /talks.html?&tx_ptspeechupload_pi1[showUid]=24&cHash=50c01a43ff (535 words)

	Altq ruleset for use with Vonage (Site not responding. Last check: 2007-10-16)
		altq on $ext_if priq bandwidth 242Kb queue { std_out, phil_out, vonage_out, tcp_ack_out }
		Altq prioritization works from 1-15 with 15 being the highest priority, thus in the above segement tcp_ack_out is the highest priority traffic, and so on down to phil_out, which is low man on the totem pole.
		Also, altq has the ability to reserve a certain amount of bandwidth for the various queues, but I felt no need to do so, simply prioritizing Vonage traffic over the rest was sufficient.
	www.hintz.org /media/altq_rules.html (359 words)

	Screaming Electron Forums - altq not work ?
		#altq on fxp0 priq bandwidth 100Kb queue { q_max, q_hig, q_def, q_low }
		altq on $ext_if cbq bandwidth 128Kb queue { q_std }
		altq on fxp0 cbq bandwith 128Kb queue { q_std }
	www.screamingelectron.org /forum/showthread.php?t=807 (783 words)

	Directing traffic with ALTQ
		ALTQ - short for ALTernate Queueing - is a very flexible mechanism for directing network traffic which lived a life of its own before getting integrated into PF.
		Altq was another one of those things which were integrated into PF because of the additional convenience it offered when integrated.
		On FreeBSD, ALTQ requires the ALTQ and queue discipline options for the disciplines you want to use to be compiled into the running kernel.
	www.bgnett.no /~peter/pf/en/altqintro.html (460 words)

	The OpenBSD Packet Filter (PF) and ALTQ
		PF is a complete, fully featured firewall that has optional support for ALTQ (Alternate Queuing).
		ALTQ is only available by compiling the options into the FreeBSD Kernel.
		ALTQ is not supported by all of the available network card drivers.
	www.freebsd.org /doc/en_US.ISO8859-1/books/handbook/firewalls-pf.html (722 words)

	Traffic Shaping with pf ...
		You identify that the http packets are those that you prefer over the pings, and tell ALTQ to drop incoming pings exceeding, say, a harmless rate of 64 kbit/s and reserve the rest for the more important http packets.
		In fact, if you tell your ALTQ box to limit one stream to, say, 128 kbit/s, and drop all excess packets, that peer will (eventually, by trial and error) come to the conclusion that sending you packets at a rate of about 128 kbit/s is the optimal thing to do.
		If you want to do this with ALTQ, you can do so by limiting outgoing packets on the "other" interface, assuming the box is forwarding all packets between two interfaces.
	lists.freebsd.org /pipermail/freebsd-pf/2005-November/001657.html (944 words)

	benzedrine.cx - Prioritizing ACKs
		ALTQ is a framework to manage queueing disciplines on network interfaces.
		While ALTQ was part of OpenBSD and has been enabled by default since several releases, the next release will merge the ALTQ and pf configuration into a single file and let pf assign packets to queues.
		Next, altq is enabled on the interface using the priq scheduler, and the upstream bandwidth is specified.
	www.benzedrine.cx /ackpri.html (749 words)

	OpenBSD: ALTQ Merged With PF \| KernelTrap
		"altq will continue to do what it already does (manipulating output queues on network interfaces, limiting bandwidth of specified categories of traffic), but pf will assign the packets to the queues.
		Here's how it works: You enable altq on an interface in pf.conf, you define child queues, and assign packets to queues on filter rules.
		The root queue you needed to specify in the old altq is now created implicitely from the interface specification.
	www.kerneltrap.org /node/505 (503 words)

	OpenBSD: ALTQ Merged With PF (Site not responding. Last check: 2007-10-16)
		OpenBSD: ALTQ Merged With PF Advertise on KernelTrap
		"altq will continue to do what it already does (manipulating output queues on network interfaces, limiting bandwidth of specified categories of traffic), but pf will assign the packets to the queues.
		As you might have noticed, altq's functionality has been merged into pf.
	kerneltrap.org /node.php?id=505 (605 words)

	bsdforums.org - FreeBSD, OpenBSD, NetBSD, MacOS X, Darwin, Linux, BSD Unix forums, message boards, discussions and ...
		OpenBSD's pf architect and developer Daniel Hartmeier provides an excellent explanation in response to Matthew Grooms question as to why ALTQ only works on traffic passing outbound on an interface when implementing the issue of traffic shaping with pf.
		ALTQ is a framework to manage queueing disciplines on network interfaces.
		ALTQ was merged with PF, the OpenBSD stateful packet filter, in order to use the resource-sharing and QoS functionality.
	www.bsdforums.org /forums/showthread.php?t=36706 (1163 words)

	1 ALTQ Diff-Serv Implementation
		The ALTQ kernel developed by Kenjiro Cho of Sony Research is a modified FreeBSD kernel that provides support for several queueing disciplines.
		The implementation of 2-bit diff-serv in the ALTQ kernel contained a number of problems that had to be addressed before we could begin generating useful experimental results,.
		Testing BE vs. PR was the "easiest" test of the ALTQ code that we could perform, in the sense that implementing two FIFOs should be more straightforward then implementing the double accounting needed for running red on the BE and AF flows.
	www.eecs.harvard.edu /~stein/ALTQ_Diff3.html (1754 words)

	Multimedia Networks Group: The QoSbox
		A PC-router running ALTQ with the JoBS queuing discipline is a QoSbox (see answer to Question 3.1).
		For now, JoBS is part of ALTQ (as of ALTQ-3.1), and the KAME SNAP kits (October 28, 2002, and later).
		Inclusion of ALTQ in the FreeBSD base distribution is a work-in-progress, and should happen with either FreeBSD 5.1 or 6.0.
	www.cs.virginia.edu /~mngroup/projects/jobs/faq.html (1936 words)

	Trafikkregulering med ALTQ
		ALTQ - forkortelse for ALTernate Queueing - er en svært fleksibel trafikkstyringsmekanisme som levde et eget liv før den ble integrert i PF.
		Når ALTQ ser en pakke med lav ønsket forsinkelse og køer med forskjellige prioriteter er tilgjengelige, tilordner den pakken til køen med høyest prioritet.
		På FreeBSD krever ALTQ alternativene for ALTQ og de kødisiplinene du vil bruke er med i konfigurasjonen for kjernen som er i bruk.
	home.nuug.no /~peter/pf/no/altqintro.html (519 words)

	Software (Site not responding. Last check: 2007-10-16)
		The ALTQ release is intended to be a flexible platform to promote network research and gain field experience.
		ALTQ is integrated into KAME IPv6 and being developed under the KAME CVS repository.
		This release is a port of ALTQ (kernel version) to the userland ppp (aka iij-ppp).
	www.csl.sony.co.jp /person/kjc/software.html (1080 words)

	06.11-OpenBSD_PF_firewall (Site not responding. Last check: 2007-10-16)
		ALTQ provides Quality of Service (QoS) bandwidth shaping that allows guaranteeing bandwidth to different services based on filtering rules.
		The loadable module was created with pflog logging enabled, no ALTQ support, and defaults to pass all packets.
		Please see the altq manual page for a list of drivers that are supported in your release of FreeBSD.
	www.enderunix.org /docs/en/freebsd54/54.06.11-OpenBSD_PF_Firewall.htm (1763 words)

	[No title] (Site not responding. Last check: 2007-10-16)
		ALTQ 1.1.3 for FreeBSD 3.0 and ALTQ 1.2 for FreeBSD 3.2.
		Making a Diffserv capable kernel 1.1 Applying the patch to the kernel source tree After you are finished installing ALTQ and patching the kernel source tree you will have to apply the patches provided here to the newly created kernel source tree.
		We were forced to have two different versions due to changes in ALTQ from v1.1.3 to v1.2.
	irl.cs.ucla.edu /software/diff/INSTALL (389 words)

	Geek Style: Traffic Management Tips
		If you are living in *BSD world and you are also doing network stuff for your personal use or at work, chances are high you know dummynet and use ipfw and dummynet for traffic management.
		If you need to do more complex traffic management, ALTQ from Kenjiro Cho is your pal.
		Unlike Dummynet, ALTQ is not built into FreeBSD distribution by default and its a little bit tricky to make it work in FreeBSD.
	farrokhi.net /blog/archives/000483.html (165 words)

	Re: AltQ
		I ported ALTQ to OpenBSD several months ago, based mostly on the code used to run ALTQ on NetBSD.
		I submitted this back to the author, through his work it evolved along with several other parts of ALTQ to become version 2.1.
		I asked Kenjiro Cho, author of ALTQ, why not do its work at ether_input() and ether_output(), and he said: "Packet scheduling should be done from a driver interrupts (tx complete interrupts) and it is if_start (xx_start in the driver) in the BSD systems." On Mon, 24 Jan 2000, Thierry Deval wrote:
	www.monkey.org /openbsd/archive/tech/0001/msg00293.html (370 words)

	ALTQ integration in FreeBSD project
		We hope that after ALTQ will make its way into -current and prove its maturity, there may be a chance to merge it back into 4.x-stable (though this might break binary compatibility for the network device drivers distributed in binary form only).
		ALTQ patches against 4.6-STABLE sources as of 24th August 2002.
		ALTQ package for FreeBSD 5.0-current as of 10th July made available.
	www.rofug.ro /projects/freebsd-altq (644 words)

	Managing Traffic with ALTQ - Cho (ResearchIndex) (Site not responding. Last check: 2007-10-16)
		ALTQ includes a queueing framework and several advanced queueing disciplines such as CBQ, RED, WFQ and RIO.
		ALTQ can be configured in a variety of ways for both research and operation.
		In this paper, I summarize the design trade-offs, the available technologies and their limitations, and how they can be applied to typical network...
	citeseer.ist.psu.edu /cho99managing.html (512 words)

	2001/freebsd-net/20010506.freebsd-net
		May 3 Jason R Thorpe Re: [altq 838] Re: The future of ALTQ, IPsec and I 31.
		May 3 Jason R Thorpe Re: [altq 839] Re: The future of ALTQ, IPsec and I 35.
		May 3 Jason R Thorpe Re: [altq 839] Re: The future of ALTQ, IPsec and I 36.
	docs.freebsd.org /mail/archive/2001/freebsd-net/20010506.freebsd-net.html (1369 words)

	[No title] (Site not responding. Last check: 2007-10-16)
		It is assumed that an ALTQ kernel source tree will be made and we are going to make Harvard TCP/IP network simulator kernel on top of it.
		It is assumed that the ALTQ kernel source tree is rooted at /usr/src/sys.ALTQ.HTCPIP.
		Make ALTQ's buffer management tools 6.1 cd ALTQ software's directory 6.2 make SYS_INCLUDES=-I/usr/src/sys.ALTQ.HTCPIP 6.3 for more information, please read ALTQ's manuals After the reboot, when the system is up again, the installation process is complete and Harvard TCP/IP network simulator is ready to use.
	www.eecs.harvard.edu /networking/HarvardTCPIP.1.0/ALTQ.extension/INSTALL (425 words)

	USENIX Technical Program - Abstract - USENIX 99
		ALTQ includes a queueing framework and several advanced queueing disciplines such as CBQ, RED, WFQ and RIO.
		ALTQ can be configured in a variety of ways for both research and operation.
		However, it requires understanding of the technologies to set up things correctly.
	www.usenix.org /publications/library/proceedings/usenix99/cho.html (119 words)

	Patching ALTQ into the kernel (Site not responding. Last check: 2007-10-16)
		* Note: Things in brackets [] are filenames or directories created by the ALTQ tarball and should be substituted as needed.
		Basically, anything that's in DIRT and not in ALTQ should be added.
		If there's something in ALTQ that's not in DIRT, you probably don't have to worry about it (unless the kernel doesn't compile).
	www.cs.unc.edu /~jeffay/dirt/FAQ/altq-patch.html (283 words)

	FreeBSD packet filter (pf) - ALTQ (Site not responding. Last check: 2007-10-16)
		These changes were synced back to the KAME project and are now the de-facto standard for everyday use of ALTQ (know as "pf_mode").
		FreeBSD did not import ALTQ until June 12th 2004, but porting efforts have been available for a long time (around FreeBSD 4.2?) - most notable http://www.rofug.ro/projects/freebsd-altq/.
		This is a fundamental difference in design which is why we believe that dummynet just is not enough for all applications.
	pf4freebsd.love2party.net /altq.html (251 words)

	: altq HFSC port [LWN.net]
		This patch is a port of HFSC from altq to Linux 2.6.
		- layout of struct hfsc_class is all but optimal The last issue is the License: The altq version is released under a BSD-style License without advertising clause (the original authors kindly agreed to remove it).
		+ * + * Note: We can afford the additional accuracy (altq hfsc keeps at most + * 3 effective digits) thanks to the fact that linux clock is bounded + * much more tightly.
	www.lwn.net /Articles/68081 (1022 words)

	BSD News
		This is a release of Alternate Queueing for BSD UNIX.
		ALTQ provides queueing schemes required to realize resource-sharing and quality of service.
		The ALTQ release is intended to be a flexible platform to promote network research and gain field experience.
	bsdnews.com /view_story.php3?story_id=411 (66 words)

	ALTQ - handling unwanted traffic (Site not responding. Last check: 2007-10-16)
		Our last altq example is one which surfaced around the time of one of the many spam or virus storms we've seen during the last few years.
		It's fairly common knowledge that the machines causing these bursts of email are practically all Windows machines.
		In a little while, we'll have a look at a different PF approach which may have achieved much of the same effect.
	www.bgnett.no /~peter/pf/en/altqsmtp.html (208 words)

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