• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Traffic Forecast Assisted Adaptive VNF Dynamic Scaling

Vol. 16, No. 11, November 30, 2022
10.3837/tiis.2022.11.007, Download Paper (Free):


NFV realizes flexible and rapid software deployment and management of network functions in the cloud network, and provides network services in the form of chained virtual network functions (VNFs). However, using VNFs to provide quality guaranteed services is still a challenge because of the inherent difficulty in intelligently scaling VNFs to handle traffic fluctuations. Most existing works scale VNFs with fixed-capacity instances, that is they take instances of the same size and determine a suitable deployment location without considering the cloud network resource distribution. This paper proposes a traffic forecasted assisted proactive VNF scaling approach, and it adopts the instance capacity adaptive to the node resource. We first model the VNF scaling as integer quadratic programming and then propose a proactive adaptive VNF scaling (PAVS) approach. The approach employs an efficient traffic forecasting method based on LSTM to predict the upcoming traffic demands. With the obtained traffic demands, we design a resource-aware new VNF instance deployment algorithm to scale out under-provisioning VNFs and a redundant VNF instance management mechanism to scale in over-provisioning VNFs. Trace-driven simulation demonstrates that our proposed approach can respond to traffic fluctuation in advance and reduce the total cost significantly.


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Cite this article

[IEEE Style]
H. Qiu, H. Tang, Y. Zhao, W. You and X. Ji, "Traffic Forecast Assisted Adaptive VNF Dynamic Scaling," KSII Transactions on Internet and Information Systems, vol. 16, no. 11, pp. 3584-3602, 2022. DOI: 10.3837/tiis.2022.11.007.

[ACM Style]
Hang Qiu, Hongbo Tang, Yu Zhao, Wei You, and Xinsheng Ji. 2022. Traffic Forecast Assisted Adaptive VNF Dynamic Scaling. KSII Transactions on Internet and Information Systems, 16, 11, (2022), 3584-3602. DOI: 10.3837/tiis.2022.11.007.

[BibTeX Style]
@article{tiis:38001, title="Traffic Forecast Assisted Adaptive VNF Dynamic Scaling", author="Hang Qiu and Hongbo Tang and Yu Zhao and Wei You and Xinsheng Ji and ", journal="KSII Transactions on Internet and Information Systems", DOI={10.3837/tiis.2022.11.007}, volume={16}, number={11}, year="2022", month={November}, pages={3584-3602}}