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http://dx.doi.org/10.18770/KEPCO.2020.06.03.259

Performance of Position Based Fast Fault Recovery Protocol for Industrial Bridged Ring Networks  

Seo, Ju Sang (School of Avionics and Information, Korea Aerospace University)
Yoon, Chong Ho (School of Avionics and Information, Korea Aerospace University)
Park, Hong Soon (School of Avionics and Information, Korea Aerospace University)
Kim, Jin Uk (School of Avionics and Information, Korea Aerospace University)
Publication Information
KEPCO Journal on Electric Power and Energy / v.6, no.3, 2020 , pp. 259-269 More about this Journal
Abstract
With the proposal-agreement procedure, RSTP can reduce the network recovery time to 400 ms or less in the case of 40 bridges. While the legacy RSTP reverts the previous agreement at the bridge with the alternate port role in the ring during the fault recovery, a new position based fast fault recovery procedure is proposed in this paper to guarantee a single proposal-agreement transaction which can provide more faster recovery. By knowing the relative position of the faulty link or bridge in hops, the bridge on the middle of the ring can complete the recovery procedure without revert. The performance of proposed procedure is numerically calculated and verified by simulation and the result shows that the recovery time can be reduced up to 100 ms, which is 1/4 times of the legacy RSTP.
Keywords
Rapid Spanning Tree Protocol; RSTP; Ring Network; Position Based; Optimization; Simplifying Proposal and Agreement Procedure;
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