Abstract: In order to solve the problem of expeditious and accurate fault localisation, a fast fault location mechanism based on multipath traffic transmission was proposed. Through establishing the multipath traffic transmission model, a number of link disjoint lightpaths arc founded. Meanwhile, each node computes independently the affected link vector in a distributed manner to restrict a small failure localization area rapidly. Theoretical analysis and simulation results demonstrate that the proposed mechanism can faster achieve the completely fault location and greatly increase the location speed.

Key words: All-optical networks, Fault location, Multipath transmission