The resource sharing pool (RSP) between the different layers for SDH-based ATM network survivability escalation strategies

This paper addresses the survivability escalation issues in multi-layers transport networks. Firstly, we presents oriented-failures and oriented-traffic escalation mechanisms. Then, we present a new survivability escalation strategy and capacity optimization mathematics model for SDH-based ATM transport networks, which addresses the difficult problem for resources sharing pool (RSP) among different layers restoration mechanisms. The proposed model can be easily extended for other types of multi-layer networks, such as WDM-based ATM networks or WDM-based SDH networks or WDM-based IP networks.