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Efficient Protection in MPλS Networks Using Backup Trees: Part Two―Simulations

机译:使用备份树的MPλS网络中的有效保护:第二部分-仿真

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摘要

In Part One of this study, we presented three approaches for organi/ing backup tree (BT) protection, where a BT was used to protect a group of working paths (WPs) against single failures. Shared BT protection uses less capacity compared to dedicated (path) protection (DP), while having the same fast recovery. Using shared BT protection is particularly suitable for multi-protocol lambda switching (MPλS) networks and can save about 15% capacity resources compared to DP. In this paper, we present a simulation study in which we apply the approaches presented in Part One for several network topologies with different demand scenarios. The effects of network and demand characteristics on the capacity gain obtained with these approaches are analyzed. In addition, the comparison between BTs and 1 : N protection is made.
机译:在本研究的第一部分中,我们介绍了三种用于组织备份树(BT)的保护方法,其中BT用于保护一组工作路径(WP)免受单个故障的影响。与专用(路径)保护(DP)相比,共享BT保护使用的容量更少,同时具有相同的快速恢复。使用共享的BT保护特别适合于多协议Lambda交换(MPλS)网络,与DP相比可以节省大约15%的容量资源。在本文中,我们提供了一个仿真研究,其中我们将第一部分中介绍的方法应用于具有不同需求场景的几种网络拓扑。分析了网络和需求特征对通过这些方法获得的容量增益的影响。另外,比较了BT和1:N保护。

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