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多层网络设计在现有的文献中得到了很大的关注,但是明确的三层网络IP/MPLS-OTN-DWDM的建模,对OTN层进行的特定研究在以往文献中还没有涉及过。这个架构是被认为在IP层和光层之间建立连接和互动的有效方法。在此文中,笔者提出一个针对多层网络规划的完整的性能优化模型,此模型中对OTN作为一个拥有独特技术子层限制的特定网层来进行研究。同时笔者提出了一个启发性的算法来解决大型网络的建模。最后,我们提供一个详尽的针对网络的每层的多种耗费参数值的数值研究,分析了每个子层的耗费参数值对邻近子层和整体网络耗费的影响。
Much attention has been paid to the multi-layer network design in the existing literature. However, the explicit modeling of IP / MPLS-OTN-DWDM in the three-layer network and the specific research on the OTN layer have not been covered in the prior literature. This architecture is considered an effective way to establish connectivity and interaction between the IP layer and the optical layer. In this article, I propose a complete performance optimization model for multi-layer network planning, in which OTN is studied as a specific network layer with unique sub-layer constraints. At the same time I proposed a heuristic algorithm to solve the large-scale network modeling. Finally, we provide an exhaustive numerical study of various parameter-cost-per-layer values for each layer of the network and analyze the impact of the cost parameter values for each sublayer on the cost of neighboring sub-layers and the overall network.