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USENIX Annual Technical Conference (NO 98), 1998
Abstract
A Framework for Alternate Queueing: Towards Traffic Management by PC-UNIX Based Routers
Kenjiro Cho, Sony Computer Science Laboratory, Inc.PaperAddress1
Abstract
Queueing is an essential element of traffic management,
but the only queueing discipline used in traditional UNIX systems
is simple FIFO queueing.
This paper describes ALTQ, a queueing framework
that allows the use of a set of queueing disciplines.
We investigate the issues involved in designing a generic queueing
framework as well as the issues involved in implementing various
queueing disciplines.
ALTQ is implemented as simple extension to the FreeBSD kernel
including minor fixes to the device drivers.
Several queueing disciplines including CBQ, RED, and WFQ are
implemented onto the framework to demonstrate the design of ALTQ.
The traffic management performance of a PC is presented to
show the feasibility of traffic management by PC-UNIX based routers.
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