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The RCC+: A Fast and Reliable Scheduler for QoS in ATM Networks through Service Separation

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Many applications rely on the ability of a network to provide quality of service (QoS) and service separation guarantees. In this paper we present the RCC+ Mux, a hardware efficient Rate Controlled Cell Multiplexer. The RCC+ Multiplexer provides explicit bandwidth reservation guarantees and thereby an excellent service separation. The RCC+ Multiplexer is simulated in the presence of self-similar traffic and compared to the FIFO queue, the Worst-case Fair Weighted Fair Queueing plus (WF 2 Q+) scheduler, and the already existing RCC Multiplexer. Moreover we point out the most favourable and critical characteristics of the RCC+ Multiplexer.

Keywords: ATM; Fairness; QoS; Service separation; Traffic isolation; WFQ

Document Type: Original Article


Affiliations: D. Abendroth, L. Battaglia and U. Killat are with the Department of Communication Networks, AB 4-06, Technical University of Hamburg-Harburg, Denickestr. 17, D-21073 Hamburg, Germany. Fax: ++49-40-42878 2941; E-mail:, Abendroth,

Publication date: 2001-05-01

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