University of Oulu

H. Feng, Z. Shu, T. Taleb, Y. Wang and Z. Liu, "An Aggressive Migration Strategy for Service Function Chaining in the Core Cloud," in IEEE Transactions on Network and Service Management, vol. 20, no. 2, pp. 2025-2039, June 2023, doi: 10.1109/TNSM.2022.3231186

An aggressive migration strategy for Service Function Chaining in the core cloud

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Author: Feng, Haoxian1; Shu, Zhaogang1; Taleb, Tarik2;
Organizations: 1Computer and Information College, Fujian Agriculture and Forestry University, Fuzhou 350002, China
2Center of Wireless Communications, University of Oulu, 90014 Espoo, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 3.5 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2022
Publish Date: 2023-09-13


Service Function Chaining (SFC) is regarded as an important concept for next-generation communication networks because it can flexibly tackle diverse usage scenarios. Due to SFC requests’ life-cycle and resource adjustment, the distribution of the remaining physical resources may become unbalanced, which brings negative effects to subsequent SFC requests as well as network operators. In this paper, we investigate the network SFC migration problem in the core cloud under the premise of considering the migration cost and the balance of physical resource distribution. We first model the SFC migration problem as an integer linear program and propose an aggressive migration strategy that can effectively reduce the imbalance of physical resource distribution. Then, we employ two state-of-the-art heuristics to allocate resources for subsequent SFC requests. The simulation results show that migrating SFC requests in the initial service queue can bring favorable feedback to subsequent requests as well as network operators. Compared to the conservative migration strategy, our proposed migration strategy can mitigate the imbalance of physical resource distribution more effectively, and thus the acceptance ratio of subsequent SFC requests, physical resources utilization, and the long-term profit of network operators can be further improved.

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Series: IEEE transactions on network and service management
ISSN: 2373-7379
ISSN-E: 1932-4537
ISSN-L: 2373-7379
Volume: 20
Issue: 2
Pages: 2025 - 2039
DOI: 10.1109/TNSM.2022.3231186
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This research work was supported in part by the Fujian Province Natural Science Foundation of China under Agreement 2020J01574 and the Industry-university-research Innovation Fund of China under Agreement 2021FNA05003. This work was also supported by the CHARITY project that has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 101016509. It is also supported in part by the Academy of Finland 6Genesis project under Grant No. 318927 and IDEA-MILL with grant number 33593.
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
Copyright information: © The Author(s) 2022. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see