A fine-grained and dynamic scaling method for service function chains

作者：

Highlights：

• The horizontal scaling is coarse-grained.

• The vertical scaling may fail due to resource constraints.

• The improved vertical scaling combines VNF vertical scaling and traffic split to improve the scaling success ratio.

• The improved horizontal scaling deploys new VNF instances with the required resource demand.

摘要

•The horizontal scaling is coarse-grained.•The vertical scaling may fail due to resource constraints.•The improved vertical scaling combines VNF vertical scaling and traffic split to improve the scaling success ratio.•The improved horizontal scaling deploys new VNF instances with the required resource demand.

论文关键词：Service function chain,Network function virtualization,Virtual network function,Dynamic scaling,Fine-grained resource provision

论文评审过程：Received 1 April 2021, Revised 23 June 2021, Accepted 5 July 2021, Available online 9 July 2021, Version of Record 16 July 2021.

论文官网地址：https://doi.org/10.1016/j.knosys.2021.107289