The integration of different technologies such as ATM, SDH, and ABSTFWCT WDM in multilayer transport networks raises many questions regarding the coordination of the individual network layers. Especially in the area of network survivability, much can be gained by a better alignment of the healing actions taken by different network layers in case of outages. Survivability issues encountered in a multilayer environment include, among others: how t o identify the original failure cause, how

No abstract

No abstract

No abstract

No abstract