Abstract
Rather than conventional segment partition methods in link/path/sub-path based protection switching schemes, we discuss the multi-metrics resource-based network partition approaches to meet the requirement of group switching and adapt to dynamic traffic demands. By the route selection step according to exchanged capacity estimation information, group reconfiguration process and rerouting in each group, channel utilization of network will be maximized and hence the overall quality of protection can be achieved. We consider both the static and dynamic group partition strategies under dynamic traffic demands and examine their relative influence of various network metrics. The simulation results show that resource utilization can be optimized at the expense of moderate restoration penalty under heavy load in the dynamic traffic environment over dense mesh backbone networks.
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