Modeling and simulation study of the survivability performance of ATM-based restoration strategies for the next generation high-speed networks

The insatiable need for high bandwidth and low latency is spurring research into the next generation of high-speed networks (NGHSN). The design of these NGHSN will be typically motivated by the use of advanced networking technologies. The recent technological advancements in the field of WDM, render WDM-based networks a promising architectural candidate for the future NGHSN. Since ATM have the capacity for providing QoS guarantees, we propose a candidate architecture that combines the two technologies, i.e., ATM and WDM for the NGHSN. Furthermore, we observe that service survivability (i.e., continued service provision in the event of network facility failures) is a very important concern since service disruption at high-speeds can cause a considerable amount of loss. Hence, in this paper, we propose and analyze the performance of a restoration strategy that can tap the advantages of the two technologies to provide network robustness/service survivability