Fairness improvement of ABR traffic in ATM networks using EFCI and ER switches

A new ATM service class, called available bit rate (ABR) transports traffic over unused network bandwidth. However, existing switches do not yet accept this new ABR service class. The EFCI switch uses binary feedback including the setting of EFCI bit in the cell header. The controversial point of th...

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Main Authors: Won-Tae Kim, Ki-Tae Park, In-Kap Park, Hyung-Lae Kim, Yung-Kwon Kim
Format: Conference Proceeding
Language:English
Subjects:
Asynchronous transfer mode
Bandwidth
Bit rate
Channel allocation
Erbium
Feedback
Switches
Switching circuits
Telecommunication traffic
Virtual colonoscopy
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creator Won-Tae Kim
Ki-Tae Park
In-Kap Park
Hyung-Lae Kim
Yung-Kwon Kim
description A new ATM service class, called available bit rate (ABR) transports traffic over unused network bandwidth. However, existing switches do not yet accept this new ABR service class. The EFCI switch uses binary feedback including the setting of EFCI bit in the cell header. The controversial point of this switch is that long hop VCs have a greater possibility that the EFCI bit is set; this is referred to as the beat down problem. On the other hand, ER switch is an intelligent switch in that it monitors its capacity per active virtual circuit (VC) flow. It therefore provides a more efficient and fair control of the source rate. This paper investigates the interoperability issues in terms of the fairness of bandwidth allocation when an ATM network consists of switches using different rate control mechanisms, namely, the ER mode and the EFCI mode.
doi_str_mv 10.1109/TENCON.1997.647270
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ispartof TENCON '97 Brisbane - Australia. Proceedings of IEEE TENCON '97. IEEE Region 10 Annual Conference. Speech and Image Technologies for Computing and Telecommunications (Cat. No.97CH36162), 1997, Vol.1, p.109-112 vol.1
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subjects Asynchronous transfer mode
Bandwidth
Bit rate
Channel allocation
Erbium
Feedback
Switches
Switching circuits
Telecommunication traffic
Virtual colonoscopy
title Fairness improvement of ABR traffic in ATM networks using EFCI and ER switches
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