Availability-guaranteed slice composition for service function chains in 5G transport networks

被引：13
作者：
Gour, Riti [1 ]
Ishigaki, Genya [1 ]
Kong, Jian [3 ]
Jue, Jason P. [2 ]
机构：
[1] Univ Texas Dallas, Richardson, TX 75080 USA
[2] Univ Texas Dallas, Dept Comp Sci, Richardson, TX 75080 USA
[3] Ciena, Austin, TX 78759 USA
来源：
JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING | 2021年 / 13卷 / 03期
基金：
美国国家科学基金会;
关键词：
Bandwidth; Topology; 5G mobile communication; Reliability; Virtualization; Service function chaining; Servers; PROTECTION; ALGORITHMS;
D O I：
10.1364/JOCN.403721
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
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. (c) 2021 Optical Society of America
引用
收藏
页码：14 / 24
页数：11
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