Abstract

In practical application scenarios, the division of different operators or the same operator in different regions constitutes a natural network region, forming a multi-domain optical network. At the beginning, this paper introduces the hierarchical architecture of software-defined optical network (SDON) and the functional model of control plane. Then, it describes a control system of software-defined multi-domain optical network based on hierarchical control mode and briefly analyzes their basic functional model. In the end, around the problems of resource allocation between scenarios in multi-domain optical network, this paper respectively analyzes the optimization of routing resources in inter-domain and the mechanism of spectrum defragmentation. At the same time, it separately simulates the resource optimization algorithms of single control architecture and hierarchical control architecture to verify the superiority of hierarchical control system.

中文翻译：

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软件定义的多域光网络域间资源优化方法

摘要

在实际应用场景中，不同运营商或同一运营商在不同区域的划分构成了自然的网络区域，形成了多域光网络。首先，本文介绍了软件定义光网络（SDON）的分层体系结构和控制平面的功能模型。然后，描述了一种基于分层控制模式的软件定义的多域光网络控制系统，并简要分析了其基本功能模型。最后，针对多域光网络中场景间的资源分配问题，分别分析了域间路由资源的优化以及频谱碎片整理的机制。同时，