Functional Partitioning for Multi-Layer Survivability in IP over WDM Networks(Special Issue on Advanced Internetworking based on Photonic Network Technologies)

スポンサーリンク

概要

• 論文の詳細を見る

• A WDM(Wavelength Division Multiplexing)technology is a new optical technology, providing multiple wavelengths at the rate of 10 Gbps on the fiber. IP(Internet Protocol)over WDM networks where IP packets are directly carried on the WDM network is expected to offer an infrastructure for the next generation Internet. For IP over WDM networks, a WDM protection mechanism is expected to provide a highly reliable network(i.e., robustness against the link/node failures). However, conventional IP also provides a reliability mechanism by its routing function. In this paper, we first formulate an optimization problem for designing IP over WDM networks with protection functionalities of WDM networks, by which we can obtain IP over WDM networks with high reliability. Our formulation results in a mixed integer linear problem(MILP). However, it is known that MILP can be solved only for a small number of variables, in our case, nodes and/or wavelengths. We therefore propose two heuristic algorithms, min-hop-first and largest-traffic-first approaches in order to assign the wavelength for backup light-path. Our results show that the min-hop-first approach takes fewer wavelengths to construct the reliable network, that is, all of lightpaths can be protected using the WDM protection mechanism. However, our largest-traffic-first approach is also a good choice in the sense that the approach can be saved the traffic volume increased at the IP router by the link failure.

• 一般社団法人電子情報通信学会の論文
• 2000-10-25

著者

• Miyahara Hideo

  The Author Is With The Faculty Of Engineering Science Osaka University

• Murata Masayuki

  The Author Is With The Faculty Of Engineering Science Osaka University

• Murata Masayuki

  The Author Is With Cybermedia Center Osaka University

関連論文

• A Combination Scheme of ARQ and FEC for Multimedia Wireless ATM Networks
• Path Accommodation Methods for Unidirectional Rings with Optical Compression TDM(Special Issue on Advanced Internetworking based on Photonic Network Technologies)
• Analysis of Network Traffic and Its Application to Design of High-Speed Routers(Special Issue on Next Generation Internet Technologies and Their Applications)
• Functional Partitioning for Multi-Layer Survivability in IP over WDM Networks(Special Issue on Advanced Internetworking based on Photonic Network Technologies)
• Challenges for the Next-Generation Internet and the Role of IP over Photonic Networks(Special Issue on Advanced Internetworking based on Photonic Network Technologies)

スポンサーリンク