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Improving fault detection and reliability in FDDI networks

Radhakrishna, Pillai R and Anand, Hardi and Selvarajan, A (1992) Improving fault detection and reliability in FDDI networks. In: Computer Communications, 15 (9). pp. 586-592.

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Official URL: http://dx.doi.org/10.1016/0140-3664(92)90057-L


FDDI (Fibre Distributed Data Interface) is a 100 Mbit/s token ring network with two counter rotating optical rings. In this paper various possible faults (like lost token, link failures, etc.) are considered, and fault detection and the ring recovery process in case of a failure and the reliability mechanisms provided are studied. We suggest a new method to improve the fault detection and ring recovery process. The performance improvement in terms of station queue length and the average delay is compared with the performance of the existing fault detection and ring recovery process through simulation. We also suggest a modification for the physical configuration of the FDDI networks within the guidelines set by the standard to make the network more reliable. It is shown that, unlike the existing FDDI network, full connectivity is maintained among the stations even when multiple single link failures occur. A distributed algorithm is proposed for link reconfiguration of the modified FDDI network when many successive as well as simultaneous link failures occur. The performance of the modified FDDI network under link failures is studied through simulation and compared with that of the existing FDDI network.

Item Type: Journal Article
Publication: Computer Communications
Publisher: Elsevier science
Additional Information: Copyright of this article belongs to Elsevier science.
Keywords: FDDI;fault detection;reliability;ring recovery.
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 01 Apr 2011 06:49
Last Modified: 22 Feb 2012 06:02
URI: http://eprints.iisc.ac.in/id/eprint/36324

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