Implementation of congestion control schemes for ABR service in an ATM local-area network test-bed

Aleksandar Kolarov; G. Ramamurthy; Vivek Bansal

doi:10.1117/12.224207

1 October 1995 Implementation of congestion control schemes for ABR service in an ATM local-area network test-bed

Aleksandar Kolarov, G. Ramamurthy, Vivek Bansal

Proceedings Volume 2608, Emerging High-Speed Local-Area Networks and Wide-Area Networks; (1995) https://doi.org/10.1117/12.224207
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

An adaptive end-to-end based congestion control scheme to support a class of best effort service known as available bit rate service is being proposed by the ATM forum. In this paper we present the implementation of two variants of this control scheme. In the first scheme known as the explicit forward congestion indication (EFCI) scheme, a single bit is used to convey to the source the state of the network. In the second scheme, known as the explicit rate (ER) scheme, the network informs the sources from time to time, the maximum rate at which they can transmit. We investigate the transient performance of the two controls in the presence of high priority cross traffic. The EFCI mechanism is fundamentally oscillatory in nature and can lead to large cell loss. The ER scheme is very stable, even under extreme loading conditions, with good transient response.

Citation Download Citation

Aleksandar Kolarov, G. Ramamurthy, and Vivek Bansal "Implementation of congestion control schemes for ABR service in an ATM local-area network test-bed", Proc. SPIE 2608, Emerging High-Speed Local-Area Networks and Wide-Area Networks, (1 October 1995); https://doi.org/10.1117/12.224207

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