The ALTQ project is aimed at providing a flexible queueing platform in order to promote research and operational experience in the field. The ALTQ software release includes a queueing framework and a set of advanced queueing disciplines such as CBQ, HFSC, RED, WFQ BLUE, and RIO. ALTQ also includes traffic conditioning elements for diffserv. The ALTQ release for FreeBSD has been publicly available since March 1997, and used by many groups world wide. NetBSD and OpenBSD are also supported.
The H-FSC implementation in ALTQ is a joint work with Hui Zhang and his group members at CMU during my stay at CMU in July 1999.
As a chair of the MAWI (Measurement and Analysis on the WIDE Internet) working group of the WIDE Project, I have been working on building a public traffic trace repository. Our challenges include: