Abstract
an analytical framework for the performance of different protection switching restoration mechanisms with different protection policies in Multi-Protocol Label Switching (MPLS) networks is developed, where the protection policy may be 1+1, 1:1,n:1 orn:m. As a general rule, it aims at the MPLS networks with the protection paths created in advance, of fault occurrence without resources reserved, and it reroutes the protected traffic in the event of link or router failures while trying to maintain quality of service (QoS) requirements. Based on the proposed protocol for processing faults, an analytical model and an evaluating model are created, and the benefits and penalties of different mechanisms with different protection policies are evaluated. In particular, an improvement on the proposed protocol is presented to overcome the drawbacks ofn:m protection policy in whichm> 1 andn> 1.
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This work is supported in part, by the National Natural Science Foundation of China under Grant No.60202005 and the Project LX0240468 of Research Institute of Australia.
Xian-Si Tan received the M.S. degree in electronic engineering from Nanjing University of Science and Technology in 1992. He is an associate professor in the Department of Radar Engineering. His research interests include signal processing, data fusion, alloptical networks, fault restoration/protection, and sensor networks.
Zong-Kai Yang received the Ph.D. degree in electronic engineering from Xi'an Jiao-tong University in 1991. He is a professor of electronics and information engineering at Huazhong University of Science and Technology. He is also the vice-director of Dept. of Electronics and Information and director of the Center for Internet Technology and Engineering. His research interests include signal processing, neural networks, etc.
Liang Ou received the M.S. degree in electronic and information engineering from Huazhong University of Science and Technology in 2000. He is a Ph.D. candidate of Huazhong University of Science and Technology. His research interest is optical burst switching.
Jing-Wen Chen received the M.S. degree in microwave engineering from Xi'an Jiao-tong University in 1993. His research interest is QoS of Internet.
Ya-Jie Ma received the M.S. degree in electronics and information engineering from Huazhong University of Science and Technology in 2000. She is a lecturer of Information Science and Engineering at Wuhan University of Science and Technology. Her research interests include MPLS switching technology and its application in multicast.
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Tan, XS., Yang, ZK., Ou, L. et al. An analytical framework for performance of different fault restoration policies with QoS constraints in MPLS networks. J. Comput. Sci. & Technol. 19, 158–167 (2004). https://doi.org/10.1007/BF02944793
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DOI: https://doi.org/10.1007/BF02944793