Reliable service function chain deployment method based on traffic optimization

被引：0
|
作者：
Yang Y. [1 ]
Meng X. [1 ]
Kang Q. [1 ]
Zhao W. [1 ]
机构：
[1] College of Information and Navigation, Air Force Engineering University, Xi'an
来源：
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2021年 / 43卷 / 10期
关键词：
Network function virtualization; Ping pong effect; Resource cost; Service function chain deployment; Topology and delay awareness;
D O I：
10.12305/j.issn.1001-506X.2021.10.38
中图分类号：
学科分类号：
摘要：
Aiming at the problem of resource cost of service function chain deployment in network function virtualization environment, a reliable service function chain deployment method based on traffic optimization is proposed. Firstly, the virtual network function is aggregated according to the traffic change of virtual link. After the virtual link with high bandwidth demand is deployed to the underlying network, its traffic becomes the internal traffic of the server. Secondly, considering the reliability, delay and topology attributes comprehensively, the multi-index decision algorithm with maximum deviation is used to evaluate the physical nodes, and the distance constraint is used to reduce the ping-pong effect of traffic. Finally, k-shortest path algorithm is used to deploy the virtual link to the physical link that meets the bandwidth demand. Simulation experiments show that this method can optimize the long-term revenue overhead ratio, mapping success rate, end-to-end delay and bandwidth overhead on the basis of ensuring the reliability of service function chain. © 2021, Editorial Office of Systems Engineering and Electronics. All right reserved.
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页码：3017 / 3025
页数：8
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