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In recent years, a number of papers have shown that the scheduled traffic model, which exploits knowledge of the connection holding times of traffic demands, can lead to significant improvements in resource utilization in WDM networks. In such a traffic model, the setup and the teardown times of the scheduled demands may be known in advance (fixed window model) or may be allowed to slide within a...
We developed a framework for constraint routing in multi-domain optical network which combines PCE with service plane. With the distributed routing computation characteristic of PCE and the adaptability of service plane for service attributes, the framework provides an optimal SLA-based constraint routing strategy. Experiment results verify our framework and strategy.
Component failure in a WDM network is a serious problem that has attracted considerable attention in recent times. In a standard protection (or restoration) scheme the objective is to preserve the logical topology by switching over to back-up paths (or by setting up new lightpaths) after a fault occurs. In this paper we have proposed a new scheme where we handle a fault simply by modifying the traffic...
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