Computer-aided design procedures for survivable fiber opticnetworks

The authors describe methods to design cost-effective survivable telecommunications networks that use fiber-optic transmission links. One of these methods utilizes optical switching devices to implement route diversity during cable cuts. These methods have been incorporated into a software tool consisting of three modules: a topology generator, a circuit to DS3 bundler, and a multiplex layout system. This tool is compact enough to run on a personal computer. Each of these three modules is described, and sample results are provided