Performance comparisons of restoration techniques for fault management in OBS networks

In this paper, we study recovery scheme for OBS networks and evaluate performance of recovery scheme through simulation using NS-2. Firstly, we change general restoration procedures proposed by Standard Organization with new restoration procedures considering characteristics of OBS networks. We named it original restoration scheme. Also, we propose a novel enhanced restoration scheme only adjusted to OBS networks. It gives us to reduce the recovery time. We then present performance of original restoration and enhanced restoration scheme using well-known performance metrics. The simulation results can verify that the enhanced restoration scheme has better performance than original restoration scheme