Fault management:analysis of fault location algorithm in optical network

This article proposes a new fault location mechanism in optical network. In this mechanism,a network alarm packet format with time-stamp is introduced to implement fast restoration. In locating the fault,the existing schemes are usually complex and inaccessible when solving the multifailure location problem. For multifailures,the proposed mechanism using time-stamps is more efficient in locating the fault and decreasing computational complexity.