Optimized routing for fault management in optical burst-switched WDM networks
作者： Jing Zhang , Shuang Wang , Keyao Zhu , Lei Song , Debasish Datta
DOI: 10.1109/JSAC-OCN.2007.025106
关键词: Network performance 、 Fault management 、 Survivability 、 Distributed computing 、 Backup 、 Computer science 、 Computer network 、 Optical link 、 Load balancing (computing) 、 Optical switch 、 Routing table 、 Optical burst switching
摘要: Optical burst switching (OBS) is a promising technique for supporting high-capacity, bursty data traffic over optical wavelength-division-multiplexed (WDM) networks. An link failure may result in huge amount of (and revenue) loss, and it has been an important survivability concern In this paper, we study the fault- management issues related with OBS network. We propose to use pre-planned global rerouting balance network load reroute bursts after fails. apply optimization techniques pre-plan explicit backup routes scenarios. Our objective achieve optimal balancing both before such that state can still remain stable minimum burst-loss probability when occurs. normal routing tables network, performance occur using illustrative numerical examples. The results show average be significantly reduced by 60% - from 0.10 0.04 (when normalized less than 0.5) globally-rerouted routes, compared scheme without rerouting. also observe 43% 0.07 if done techniques, shortest-path routing.for Fault Management
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