An Improved Buffer Sharing Scheme for ATM Switches under Bursty Traffic
Mr. Simon Fong
Department of Computer Science and Computer Engineering,
La Trobe University,
Bundoora, 3083, Australia.
fong@leopard.cs.latrobe.edu.au
Dr. Samar Singh
Department of Computer Science and Computer Engineering,
La Trobe University,
Bundoora, 3083, Australia.
samar@latcs1.lat.oz.au
Dr. Mohammed Atiquzzaman
Department of Electrical and Computer Systems Engineering,
Monash University,
Clayton, 3168, Australia.
atiq@eng.monash.edu.au
Abstract
ATM has been proposed as the technique that will support
B-ISDN services of the future. Thus the high-speed fabrics
that switch the fixed-sized ATM cells at switching nodes in
the network, need to have efficient buffer management schemes
to control size and therefore cost of buffers. Most of the
buffer management schemes proposed to date do not perform
well under non-uniform traffic. But it is well accepted by
now that future ATM traffic is very likely to be non-uniform,
although the nature of the non-uniformity is likely to vary
over time. Each of the buffer management schemes proposed
for the non-uniform case, performs better than the other for
some values of the traffic parameters. In this paper we have
proposed a new buffer-management scheme, called Hot-Spot-Push-Out
(HSPO) which performs uniformly better than all the
previously proposed schemes under bursty traffic. This is
demonstrated by simulation.
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