A Simulation Study of TCP Performance over ABR and UBR Services in ATM LANs

Hongqing LI; Kai-Yeung SIU; Hong-Yi TZENG; Chinatsu IKEDA; Hiroshi SUZUKI

A Simulation Study of TCP Performance over ABR and UBR Services in ATM LANs

Hongqing LI, Kai-Yeung SIU, Hong-Yi TZENG, Chinatsu IKEDA, Hiroshi SUZUKI

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Both available bit rate (ABR) service and unspecified bit rate (UBR) service with early packet discard (EPD) schemes have been considered for supporting data applications in ATM networks. Since transmission control protocol (TCP) is perhaps the most widely used transport layer protocol in existing data networks, the performance of TCP over ATM using ABR service and UBR service with EPD schemes is of great interest to ATM equipment vendors and service providers. In this paper, we present a simulation study of this interesting issue in a LAN environment using some benchmark network configurations proposed in the ATM Forum. Our simulation results show the following: (1) With UBR service and EPD schemes, TCP suffers significant performance degradation in terms of fairness and requires relatively large switch buffer even with a small number of active virtual connections over a LAN configuration, and (2) for the same set of network configurations and with ABR service using explicit rate feedback schemes, TCP achieves good performance in terms of fairness and link utilization, and requires relatively small switch buffer.

Publication: IEICE TRANSACTIONS on Communications Vol.E79-B No.5 pp.658-667

Publication Date: 1996/05/25

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Type of Manuscript: Special Section PAPER (Special Issue on High Speed Local Area Network)

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Hongqing LI, Kai-Yeung SIU, Hong-Yi TZENG, Chinatsu IKEDA, Hiroshi SUZUKI, "A Simulation Study of TCP Performance over ABR and UBR Services in ATM LANs" in IEICE TRANSACTIONS on Communications, vol. E79-B, no. 5, pp. 658-667, May 1996, doi: .
Abstract: Both available bit rate (ABR) service and unspecified bit rate (UBR) service with early packet discard (EPD) schemes have been considered for supporting data applications in ATM networks. Since transmission control protocol (TCP) is perhaps the most widely used transport layer protocol in existing data networks, the performance of TCP over ATM using ABR service and UBR service with EPD schemes is of great interest to ATM equipment vendors and service providers. In this paper, we present a simulation study of this interesting issue in a LAN environment using some benchmark network configurations proposed in the ATM Forum. Our simulation results show the following: (1) With UBR service and EPD schemes, TCP suffers significant performance degradation in terms of fairness and requires relatively large switch buffer even with a small number of active virtual connections over a LAN configuration, and (2) for the same set of network configurations and with ABR service using explicit rate feedback schemes, TCP achieves good performance in terms of fairness and link utilization, and requires relatively small switch buffer.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e79-b_5_658/_p

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@ARTICLE{e79-b_5_658,
author={Hongqing LI, Kai-Yeung SIU, Hong-Yi TZENG, Chinatsu IKEDA, Hiroshi SUZUKI, },
journal={IEICE TRANSACTIONS on Communications},
title={A Simulation Study of TCP Performance over ABR and UBR Services in ATM LANs},
year={1996},
volume={E79-B},
number={5},
pages={658-667},
abstract={Both available bit rate (ABR) service and unspecified bit rate (UBR) service with early packet discard (EPD) schemes have been considered for supporting data applications in ATM networks. Since transmission control protocol (TCP) is perhaps the most widely used transport layer protocol in existing data networks, the performance of TCP over ATM using ABR service and UBR service with EPD schemes is of great interest to ATM equipment vendors and service providers. In this paper, we present a simulation study of this interesting issue in a LAN environment using some benchmark network configurations proposed in the ATM Forum. Our simulation results show the following: (1) With UBR service and EPD schemes, TCP suffers significant performance degradation in terms of fairness and requires relatively large switch buffer even with a small number of active virtual connections over a LAN configuration, and (2) for the same set of network configurations and with ABR service using explicit rate feedback schemes, TCP achieves good performance in terms of fairness and link utilization, and requires relatively small switch buffer.},
keywords={},
doi={},
ISSN={},
month={May},}

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TY - JOUR
TI - A Simulation Study of TCP Performance over ABR and UBR Services in ATM LANs
T2 - IEICE TRANSACTIONS on Communications
SP - 658
EP - 667
AU - Hongqing LI
AU - Kai-Yeung SIU
AU - Hong-Yi TZENG
AU - Chinatsu IKEDA
AU - Hiroshi SUZUKI
PY - 1996
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E79-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 1996
AB - Both available bit rate (ABR) service and unspecified bit rate (UBR) service with early packet discard (EPD) schemes have been considered for supporting data applications in ATM networks. Since transmission control protocol (TCP) is perhaps the most widely used transport layer protocol in existing data networks, the performance of TCP over ATM using ABR service and UBR service with EPD schemes is of great interest to ATM equipment vendors and service providers. In this paper, we present a simulation study of this interesting issue in a LAN environment using some benchmark network configurations proposed in the ATM Forum. Our simulation results show the following: (1) With UBR service and EPD schemes, TCP suffers significant performance degradation in terms of fairness and requires relatively large switch buffer even with a small number of active virtual connections over a LAN configuration, and (2) for the same set of network configurations and with ABR service using explicit rate feedback schemes, TCP achieves good performance in terms of fairness and link utilization, and requires relatively small switch buffer.
ER -