|
For Full-Text PDF, please login, if you are a member of IEICE,
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
|
Fast and Flow-Controlled Multi-Stage Network Recovery from Large-Scale Physical Failures
Kouichi GENDA Hiroshi YAMAMOTO Shohei KAMAMURA
Publication
IEICE TRANSACTIONS on Communications
Vol.E99-B
No.8
pp.1824-1834 Publication Date: 2016/08/01 Publicized: 2016/03/01 Online ISSN: 1745-1345
DOI: 10.1587/transcom.2016EBP3009 Type of Manuscript: PAPER Category: Network Keyword: network recovery, large-scale failure, flow control, bandwidth allocation, linear programming,
Full Text: PDF>>
Summary:
When a massive network disruption occurs, repair of the damaged network takes time, and the recovery process involves multiple stages. We propose a fast and flow-controlled multi-stage network recovery method for determining the pareto-optimal recovery order of failed physical components reflecting the balance requirement between maximizing the total amount of traffic on all logical paths, called total network flow, and providing adequate logical path flows. The pareto-optimal problem is formulated by mixed integer linear programming (MILP). A heuristic algorithm, called the grouped-stage recovery (GSR), is also introduced to solve the problem when the problem formulated by MILP is computationally intractable in a large-scale failure. The effectiveness of the proposed method was numerically evaluated. The results show that the pareto-optimal recovery order can be determined from the balance between total network flow and adequate logical path flows, the allocated minimum bandwidth of the logical path can be drastically improved while maximizing total network flow, and the proposed method with GSR is applicable to large-scale failures because a nearly optimal recovery order with less than 10% difference rate can be determined within practical computation time.
|
|