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A new shared-buffer packet switch in ATM networks

โœ Scribed by T.-Y. Huang

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
132 KB
Volume
24
Category
Article
ISSN
0140-3664

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โœฆ Synopsis

To improve overall cell loss rate and fairness problem in shared-buffer switches, a new output-queued shared-buffer switch is proposed in this paper. In the proposed shared-buffer switches, a novel structure of output queues is used to improve the behavior of cell loss rate and resolve the fairness problem. Performance of the proposed output-queued shared-buffer switch is analyzed and compared. According to the analyzed results, the proposed shared-buffer switches show superior performance and overcome the fairness problem. Besides, the proposed buffer architecture is simple to implement in the high-speed packet switches.

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A shared multi-buffer ATM switch is cost-effective, since it uses low-access-speed memories when compared with a shared single-buffer ATM switch. Due to the low access speed, however, the switch cannot read several cells from a buffer during a single access. Such an access conflict provides a high c