Robust and Fast Converging Cross-Layer Failure Correction in Segment-Routed Networks

Robust and Fast Converging Cross-Layer Failure Correction in Segment-Routed Networks
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分段路由网络中稳健且快速收敛的跨层故障纠正

DOI:
10.3390/electronics10222874
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发表时间:
2021-11
期刊:
影响因子:
2.9
通讯作者:
Jianwei Zhang
Jianwei Zhang
中科院分区:
工程技术3区
文献类型:
--
作者:
Zengwei Zheng;Chenwei Zhao;Jianwei Zhang

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由于覆盖技术,服务提供商可以从逻辑上查看VoIP网络,并且可以在不修改物理网络的情况下优化体验质量。然而,由于各层优化目标的不一致,跨层交互不可避免地会引起网络波动。除此之外,在两个层中发生的网络故障不仅会导致网络性能下降,而且会显着增加跨层交互的频率。这些问题使得网络长时间波动,降低网络性能,影响用户体验,特别是对时间敏感的应用。本文设计了一种跨层架构,在逻辑层满足业务功能链需求的同时,最大化用户体验和物理层,从而优化网络整体性能。我们的跨层架构可以在两层中进行主动纠正。此外,我们还研究了跨层交互,并设计了两种策略来消除波动,使网络快速收敛。
Due to overlay technologies, service providers have a logical view of the underlay network and can optimize the experience quality without modifying the physical network. However, the cross-layer interaction inevitably causes network fluctuation due to their inconsistent optimization objectives. Aside from that, network failures that occur in both layers not only cause network performance degradation but also significantly increase the frequency of cross-layer interaction. These problems make the network fluctuate for a long time, reduce the network performance, and influence the user experience, especially for time-sensitive applications. In this paper, we design a cross-layer architecture in which the logical layer can satisfy the service function chain demands and maximize the user experience and physical layer so it can optimize the overall network performance. Our cross-layer architecture can make proactive corrections in both layers. Furthermore, we investigate the cross-layer interaction and design two strategies to eliminate fluctuations and make the network converge quickly.
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