| 分层PCE架构下为解决多域路径计算的链路-节点拓扑聚合方式 |
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| 引用本文： | 彭云峰,陈真,赵长名,王宗伟,隆克平.分层PCE架构下为解决多域路径计算的链路-节点拓扑聚合方式[J].中国通信学报,2012,9(1):86-91. |
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| 作者姓名： | 彭云峰 陈真 赵长名 王宗伟 隆克平 |
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| 摘 要： |
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| 收稿时间： | 2012-02-22; |
Link-Vertex Topology Aggregation for Multi-domain Path Computation with Hierarchical PCE Architecture |
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| Peng Yunfeng,Chen Zhen,Zhao Changming,Wang Zongwei,Long Keping.Link-Vertex Topology Aggregation for Multi-domain Path Computation with Hierarchical PCE Architecture[J].China communications magazine,2012,9(1):86-91. |
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| Authors: | Peng Yunfeng Chen Zhen Zhao Changming Wang Zongwei Long Keping |
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| Affiliation: | 1University of Science and Technology of Beijing, Beijing 100083, P. R. China
2University of Electronic Science and Technology of China, Chengdu 611731, P. R. China |
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| Abstract: | Inter-domain path computing is one big issue in multi-domain networks . The Hierarchical Path Computing Element (H-PCE) is a semi-central architecture for computing inter-domain path. To facilitate H-PCE in inter-domain path computing, this paper proposed a topology aggregation scheme to abstract the edge nodes and their connected inter-domain link as one vertex to achieve more optimal paths and confidentiality guarantee. The effectiveness of the scheme has been demonstrated on solving wavelength routing in multi-domain Wavelength Division Multiplexing (WDM ) network via simulation. Simulation results show that this scheme reduces at least 10% inter-domain blocking probability, compared with the traditional Domain-to-the-Node (DtN) scheme. |
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| Keywords: | routing PCE link-vertex aggregation inter-domain path computation multi-domain network topology aggregation |
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