网络服务链的研究方向

Wolfgang John, K. Pentikousis, G. Agapiou, E. Jacob, M. Kind, A. Manzalini, Fulvio Risso, D. Staessens, Rebecca Steinert, C. Meirosu
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引用次数: 189

摘要

网络服务链(NSC)是一种业务部署概念,承诺为未来的运营商网络增加灵活性和成本效率。近年来,NSC在标准化和研究界受到了相当大的关注。然而,在同行评议的文献中,NSC在很大程度上是未定义的。事实上,一篇文献综述表明,NSC使能技术的作用有待讨论,因此未来的关键研究挑战也有待讨论。本文通过激发我们对先进动态NSC的研究兴趣并详细介绍在运营商级电信网络背景下需要考虑的主要方面来解决这些问题。我们提出了设计考虑因素和系统需求,以及说明采用NSC的优点的用例。我们详细介绍了在运营电信网络中网络服务链的典型生命周期中突出的研究挑战,包括服务链描述、编程、部署和调试,并总结了我们的安全考虑。最后,对该领域今后的工作进行了展望。
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Research Directions in Network Service Chaining
Network Service Chaining (NSC) is a service deployment concept that promises increased flexibility and cost efficiency for future carrier networks. NSC has received considerable attention in the standardization and research communities lately. However, NSC is largely undefined in the peer-reviewed literature. In fact, a literature review reveals that the role of NSC enabling technologies is up for discussion, and so are the key research challenges lying ahead. This paper addresses these topics by motivating our research interest towards advanced dynamic NSC and detailing the main aspects to be considered in the context of carrier-grade telecommunication networks. We present design considerations and system requirements alongside use cases that illustrate the advantages of adopting NSC. We detail prominent research challenges during the typical lifecycle of a network service chain in an operational telecommunications network, including service chain description, programming, deployment, and debugging, and summarize our security considerations. We conclude this paper with an outlook on future work in this area.
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