作者
Junbi Xiao, Jiaqi Zheng, Wu Wen, Mohsen Guizani, Peiying Zhang, Lizhuang Tan
发表日期
2024/6/3
期刊
Computer Communications
出版商
Elsevier
简介
New technologies such as virtualization and Software Defined Networking (SDN) have given traditional networks unprecedented flexibility. A Service Function Chain (SFC) formed by concatenating multiple Virtual Network Functions (VNFs) expands network functions to meet the growing personalized network requirements of applications. However, due to the decentralization of VNF instances and the tight cloud load, how to ensure Quality of Service (Qos) while deploying the SFC brings new challenges. Hence, a SFC deployment strategy based on multi-objective optimization, named MO-SACO is proposed, which regards delay optimization, reliability assurance and cost reduction as the main objectives. Specifically, we first design a VNF aggregation rule to handle raw SFC requests, which effectively reduces the SFC path latency and improves reliability. Then, VNF placement and traffic routing is modeled as a …
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J Xiao, J Zheng, W Wen, M Guizani, P Zhang, L Tan - Computer Communications, 2024