Design of a fast and resource-efficient fault management system in optical networks to suit real-time multimedia applications

• Main Author: Ghosh, Tirthankar
• Format: Others
• Published: FIU Digital Commons 2002
• Subjects: Computer Engineering
• Online Access: https://digitalcommons.fiu.edu/etd/3931; https://digitalcommons.fiu.edu/cgi/viewcontent.cgi?article=5336&context=etd

Today's telecommunications networks are relying more and more on optical fibers as their physical medium. Currently the Wavelength Division Multiplexing technology enables hundreds of wavelengths to be multiplexed on a single fiber. Using this technology capacity can be dramatically increased, even to the order of Terabits per second. While WDM technology has given a satisfactory answer to the ever-increasing demand for capacity, there is still a problem which needs to be handled efficiently: survivability. Our proposed fault restoration system optimized between restoration cost and speed. We extended the concept of Forward Equivalence Class (FEC) in Multi Protocol Label switching (MPLS) to our proposed fault restoration system. Speed was found to be in the order of 1 to 3 microseconds using predesigned protection, depending on the configuration of the system. Optimization was done between restoration speed and cost by introducing a priority field in the packet header.