Opportunities and Research Challenges of Hybrid Software Defined Networks
Opportunities and Research Challenges of Hybrid Software Defined Networks
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DOI：
10.1145/2602204.2602216
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发表时间：
2014-04-01
影响因子：
2.8
通讯作者：
Bonaventure, Olivier
中科院分区：
文献类型：
--
作者：
Vissicchio, Stefano;Vanbever, Laurent;Bonaventure, Olivier
软件定义网络（SDN）有望简化通信网络的设计、运营和管理。然而，SDN也有自己的一系列挑战，包括增量部署能力、健壮性和可扩展性。在本文中，我们探讨了混合SDN模型，联合收割机SDN与更传统的基于分布式协议的网络方法相结合。我们展示了一些用例，其中混合模型可以减轻传统和SDN方法各自的局限性，为（部分）过渡到SDN提供激励。此外，我们揭示了在混合模型中自然实现的质的多样性权衡，使它们便于不同的过渡策略和长期网络设计。出于这些原因，我们认为混合SDN架构值得科学界更多的关注。
Software Defined Networking (SDN) promises to ease design, operation and management of communication networks. However, SDN comes with its own set of challenges, including incremental deployability, robustness, and scalability. Those challenges make a full SDN deployment difficult in the short-term and possibly inconvenient in the longer-term.In this paper, we explore hybrid SDN models that combine SDN with a more traditional networking approach based on distributed protocols. We show a number of use cases in which hybrid models can mitigate the respective limitations of traditional and SDN approaches, providing incentives to (partially) transition to SDN. Further, we expose the qualitatively diverse tradeoffs that are naturally achieved in hybrid models, making them convenient for different transition strategies and long-term network designs. For those reasons, we argue that hybrid SDN architectures deserve more attention from the scientific community.