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When a massive network disruption occurs, repair of the damaged network takes time, and the recovery process involves multiple stages. We previously proposed a multi-stage network recovery method for determining the pareto-optimal recovery order of failed physical components, reflecting the balance requirement between maximizing the total amount of traffic on all logical paths, called total network...
This paper proposes an Internet protocol (IP) state migration method for developing resource-portable IP routers that are not virtual-machine based but commercial based. Resource-portable IP routers have the potential for achieving a sustainable network by functioning as a shared backup router. While previous studies relied on a virtualized technology (e.g., a virtual machine-based router on commodity...
In a scenario of restoration from massive failures, a network is repaired through multiple restoration stages because availability of repair resources is limited. In a practical case, a network operator should assure the reachability of important traffic in transient stages, even as risks and/or operational overheads caused by stage transitions are suppressed. We discuss the novel problem of optimizing...
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