Acta Metallurgica Sinica(English letters) ›› 2013, Vol. 20 ›› Issue (4): 99-105.doi: 10.1016/S1005-8885(13)60076-X

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Dynamic survivable mapping through reconfiguration in IP over WDM network


  1. 1. School of Mechanical Science and Engineering, Jilin University, Changchun 130025, China 2. School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China
  • Received:2013-01-18 Revised:2013-04-18 Online:2013-08-31 Published:2013-08-30
  • Contact: Bingli Guo
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (61205058), the Open Fund of State Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications), P. R. China.

Abstract: A new approach for network survivability problem in Internet protocol (IP) over wavelength division multiplexing (WDM) optical network is proposed to enhance the IP layer restorability under physical link failure through logical topology reconfiguration. More specifically, after traffic arrival and departure, reconfiguring the logical topology correspondingly is helpful to minimize the traffic disruption after physical link failure. So, in this paper, this problem is proposed for first time and formulated as an integer linear programming (ILP) problem. And then, two heuristic algorithms are proposed. The performance of proposed algorithms have been evaluated through simulations, and the results show that reconfiguring the logical topology dynamically could achieve more than 20% improvement of the restorability of traffic in IP layer, but with acceptable resource cost.

Key words: survivable mapping, IP over WDM, resource optimization, logical topology dynamic reconfiguration