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To: rsvp-test@isi.edu, freebsd-hackers@FreeBSD.ORG
Subject: altq-0.3.1 released
Date: Mon, 07 Jul 1997 18:33:08 +0900
From: Kenjiro Cho <kjc@csl.sony.co.jp>
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altq-0.3.1 is now available from
	<http://www.csl.sony.co.jp/person/kjc/programs.html>
	or
	<ftp://ftp.csl.sony.co.jp/pub/kjc/altq.tar.gz>

The release includes:
	alternate queueing support for FreeBSD-2.2.1R or 2.2.2R kernel
	CBQ and WFQ implementation
	tools for CBQ
	RSVP stubs for CBQ

What's New since version 0.2:
	- merged LBNL cbq v2.0 featuring Top-Level link-sharing and
	  Weighted-Round Robin.
	- FreeBSD-2.2.2R based.
	- better bandwidth allocation.
	- sppp (synchronous ppp) device support.
	- ATM multicast workaround for RSVP developpers.
	- many bug fixes.

The idea behind this package is to provide better queueing schemes
required to realize resource-sharing and quality of service.
Currently, the only queueing scheme implemented in BSD Unix is
the simple tail-drop FIFO queueing.  The BSD Unix systems have no
general method to implement alternate queueing schemes, which is the
main obstacle to implement a new queueing scheme to BSD Unix.

We have designed and implemented a generic alternate queueing
framework for the BSD Unix systems, and ported Sun's CBQ onto this
framework.  The system can be used for resource reservation with the
RSVP implementation from ISI.

The preliminary performance test result is encouraging; our CBQ
implementation is able to handle 100Mbps without noticeable overhead.

The goals of this project are three-fold:
    - to provide a framework to implement better queueing schemes.
    - to provide a link-sharing test-bed for network operators.
    - to provide a traffic control kernel to the RSVP community.

Send bug reports, suggestions, etc. to kjc@csl.sony.co.jp.

---
Kenjiro Cho
Sony Computer Science Laboratory, Inc.