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中文摘要：
在通用多协议标记交换协议（GMPLS）控制面体系结构下，OBS网络组播的实现面临着一些技术问题。首先分析并解决了其中两个关键问题，即IP组播树与组播标记交换路径（LSP），以及组播LSP与光树间的映射问题；然后提出了支持组播的OBS边缘节点与核心节点的功能模型；并在OPNET仿真环境下，设计和开发了节点仿真模块，验证了OBS组播功能。仿真结果表明：在基于GMPLS的OBS网络体系结构下，光组播树建立时间普遍较短，而且在实现方式上，与光路相比，光树型方式具有较高的链路利用率。
英文摘要：
Recently GMPLS has been integrated into optical burst switching（OBS） to provide some enhanced functions for multicast.However,OBS multicast still faces some problems to be solved under the GMPLS-based OBS architecture.Firstly,this paper discusses two most important problems（i.e.,the mapping between IP multicast tree,multicast label switching path,and light-tree based optical multicast tree）,and gives some feasible solutions to them.Then it proposes the edge node functional model and the core one of the multicast-aware OBS network,respectively. In OPNET software environment, the paper develops some modules of multicastaware OBS,and then validates their multicast function. The simulation results show that GMPLS can expedite the light-tree setup,and light-tree based optical multicast has higher wavelength link utilization than light-path.
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