Multiple hierarchical protection schemes for differentiated services in GMPLS networks
To deliver reliable differentiated services in optical networks, GMFLS requires a set of procedures to provide protection for the traffic carried on the light paths. Here we propose multiple hierarchical protection schemes that improve the utilization of network resources-optical label switched path...
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Published in | International Conference on Information Technology: Research and Education, 2003. Proceedings. ITRE2003 pp. 583 - 586 |
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Main Authors | , , , , , |
Format | Conference Proceeding |
Language | English |
Published |
IEEE
2003
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Abstract | To deliver reliable differentiated services in optical networks, GMFLS requires a set of procedures to provide protection for the traffic carried on the light paths. Here we propose multiple hierarchical protection schemes that improve the utilization of network resources-optical label switched paths (LSPs) such as lambda-LSP (L-LSP), waveband-LSP (WB-LSP), fiber-LSP (F-LSP). In the priority based LSPs, each LSP has its own recovery mechanism that F-LSP has 1+1 protection, WB-LSP has 1:1 protection, and L-LSP has 1:n protection. And the differentiated services including EF (explicit forwarding), AF (assured forwarding) and DF(default forwarding) can be allocated into hierarchical LSP respectively. We also propose the structure of the OXC (optical crossconnect) capable of setting up hierarchical LSPs or releasing LSPs by GMPLS control plane. The performance and effectiveness of our proposed multiple hierarchical protection schemes are demonstrated by the results of simulations on the mesh network. |
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AbstractList | To deliver reliable differentiated services in optical networks, GMFLS requires a set of procedures to provide protection for the traffic carried on the light paths. Here we propose multiple hierarchical protection schemes that improve the utilization of network resources-optical label switched paths (LSPs) such as lambda-LSP (L-LSP), waveband-LSP (WB-LSP), fiber-LSP (F-LSP). In the priority based LSPs, each LSP has its own recovery mechanism that F-LSP has 1+1 protection, WB-LSP has 1:1 protection, and L-LSP has 1:n protection. And the differentiated services including EF (explicit forwarding), AF (assured forwarding) and DF(default forwarding) can be allocated into hierarchical LSP respectively. We also propose the structure of the OXC (optical crossconnect) capable of setting up hierarchical LSPs or releasing LSPs by GMPLS control plane. The performance and effectiveness of our proposed multiple hierarchical protection schemes are demonstrated by the results of simulations on the mesh network. |
Author | Sung-Kwan Youm Chul-Hee Kang Seung-Joon Seok Dae-Gun Kim Sung-Woo Ryu Joo-Sang Youn |
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Snippet | To deliver reliable differentiated services in optical networks, GMFLS requires a set of procedures to provide protection for the traffic carried on the light... |
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SubjectTerms | Communication switching Communication system control High speed optical techniques Intelligent networks Multiprotocol label switching Nonhomogeneous media Optical fiber devices Optical fiber networks Optical fibers Protection |
Title | Multiple hierarchical protection schemes for differentiated services in GMPLS networks |
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