Computer and Modernization ›› 2023, Vol. 0 ›› Issue (09): 64-69.doi: 10.3969/j.issn.1006-2475.2023.09.010

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SDN Reliability Evaluation Algorithm Based on Improved BDD

  

  1. (College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China)
  • Online:2023-09-28 Published:2023-10-10

Abstract: Aiming at the problem of insufficient reliability analysis of SDN data forwarding layer, this paper proposes an SDN reliability evaluation algorithm based on BDD, which can complete fast and accurate reliability analysis of SDN data forwarding layer. In view of the shortcomings of traditional BDD ranking methods that lead to large scale and long construction time for network reliability evaluation models, this paper proposes a new heuristic edge ranking algorithm, MP-BFS, to rank the variables of BDD. The experimental results show that compared with the traditional sorting algorithm, the proposed MP-BFS algorithm can significantly reduce the construction scale of BDD and complete the construction of BDD faster. The BDD-SDN algorithm can be used for rapid and accurate reliability analysis on the forwarding layer of SDN data.

Key words: SDN, reliability evaluation, binary decision diagram, breadth-first search

CLC Number: