Fault Tolerant Multiwavelength Optical Rings with Limited Wavelength Conversion (1997)
| Citations: | 14 - 0 self |
BibTeX
@MISC{Gerstel97faulttolerant,
author = {Ori Gerstel and Ori Gerstel (corresponding and G. Sasaki and Rajiv Ramaswami and Galen H. Sasaki},
title = {Fault Tolerant Multiwavelength Optical Rings with Limited Wavelength Conversion},
year = {1997}
}
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Abstract
This paper presents methods for recovering from channel failures, link failures, and node failures in a wavelength-division multiplexed (WDM) ring network, with limited wavelength conversion capabilities at the nodes. Different recovery schemes are presented to handle each type of failure. Each scheme is evaluated based on the network hardware configuration required to support it, and the performance and management overheads associated with fault-recovery. Keywords: Optical networks, fault-tolerance, self-healing rings. This work was supported in part by grant MDA 972-95-C-0001 from ARPA. 1 Introduction Today's telecommunications infrastructure is based on SONET/SDH self-healing rings. To increase the bandwidth of their trunks, the carriers are actively deploying wavelength-division-multiplexed (WDM) pointto -point links. It is likely that WDM ring networks will come next, as a natural evolution of WDM links and SONET rings. A WDM network provides lightpaths. A lightpath is an en...
