本文主要研究了波分复用光传送网中波长转换器优化配置问题，有限范围波长转换问题，以及虚拓扑设计问题。
This dissertation manly focuses on the issues of wavelength converter optimal placement, limited-range wavelength conversion and virtual topology design.
文章对网状拓扑中的虚环保护机制进行了研究，并对一种基于生成树的虚环构成算法进行了分析。
This paper studied the protection mechanism for virtual ring in mesh topology, and analyzed a construction algorithm for a virtual ring based on spanning tree.
文章对网状拓扑中的虚环保护机制进行了研究，并对一种基于生成树的虚环构成算法进行了分析。
This paper studied the protection mechanism for virtual ring in mesh topology, and analyzed a construction algorithm for a virtual ring based on spanning tree.
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