Availability-guaranteed slice composition for service function chains in 5G transport networks
Availability-guaranteed slice composition for service function chains in 5G transport networks
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DOI：
10.1364/jocn.403721
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发表时间：
2020-11
期刊：
影响因子：
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通讯作者：
Riti Gour;Genya Ishigaki;Jian Kong;J. Jue
中科院分区：
文献类型：
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作者：
Riti Gour;Genya Ishigaki;Jian Kong;J. Jue
在5G网络中通过网络切片部署服务功能链（SFC）时，可用性是一个关键的服务指标。我们研究的问题，确定一个服务功能链的切片的组成和切片的物理传输网络的映射的方式，保证可用性的SFC，同时最大限度地降低成本。为了提高可用性，我们设计了一个切片，提供多个路径（可能与物理基础设施上的非不相交路由）托管SFC，我们确定每个路径上的带宽的适当尺寸，我们的模拟结果表明，我们的方法的有效性方面的成本建立SFC和SFC的接受率。
Availability is a key service metric when deploying service function chains (SFCs) over network slices in 5G networks. We study the problem of determining the composition of a slice for a service function chain and the mapping of the slice to the physical transport network in a way that guarantees availability of the SFC while minimizing cost. To improve the availability, we design a slice that provides multiple paths (possibly with non-disjoint routing over the physical infrastructure) for hosting SFCs, and we determine the appropriate dimensioning of bandwidth on each path. Our simulation results show the effectiveness of our approach in terms of the cost of establishing the SFC and the SFC acceptance ratio.