A Dynamic Bandwidth Tuning Mechanism for DQDB in Client - Server Traffic Environments 


Vol. 7,  No. 11, pp. 3479-3489, Nov.  2000
10.3745/KIPSTE.2000.7.11.3479


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  Abstract

Most of the study on fairness control method for Distributed-Queue Dual-Bus(DQDB) have been performed under specific load types such as equal probability load types or symmetric load types. On Web-based internet environments client-server load types are more practical traffic patterns than specific load types. In this paper, an effective fairness control method to distribute DQDB network bandwidth fairly to all stations under a client-server load is proposed. In order to implement a dynamic bandwidth tuning capability needed to distribute the bandwidth fairly at heavy loads, the proposed method uses two parameters; one is an access limit to regulate each station''s packet transmission and the other is the number of extra empty slots that are yielded to downstream stations. In point of implementation, this mechanism is simpler and easier than Bandwidth Tuning Mechanism(BTM) that uses an intermediate pattern and an adaptation function. Simulation results show that it outperforms other mechanisms.

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[IEEE Style]

J. H. Kim and O. S. Kwon, "A Dynamic Bandwidth Tuning Mechanism for DQDB in Client - Server Traffic Environments," The Transactions of the Korea Information Processing Society (1994 ~ 2000), vol. 7, no. 11, pp. 3479-3489, 2000. DOI: 10.3745/KIPSTE.2000.7.11.3479.

[ACM Style]

Jeong Hong Kim and Oh Seok Kwon. 2000. A Dynamic Bandwidth Tuning Mechanism for DQDB in Client - Server Traffic Environments. The Transactions of the Korea Information Processing Society (1994 ~ 2000), 7, 11, (2000), 3479-3489. DOI: 10.3745/KIPSTE.2000.7.11.3479.

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