Integrated multilayer survivability strategy with inter-layer signaling

In last decade, due to the popularity of the Internet where data-central traffic keeps growing, some emerging networking requirements have been superposed on today´s telecommunication networks, especially in the area of network survivability; as a key networking problem, network reliability gains more and more importance. The integration of different technologies such as ATM, SDH, and WDM in multilayer transport networks raises many questions regarding the coordination of individual network layer survivability scheme. This problem is referred as multilayer network survivability. In this paper, we investigate the integrated multilayer network survivability, and represent an interworking strategy between different single layer survivability schemes in IP via generalized multi-protocol label switching (GMPLS) over optical networks.