NFVdeep adaptive online service function chain deployment with deep reinforcement learning

With the evolution of network function virtualization (NFV), diverse network services can be flexibly offered as service function chains (SFCs) consisted of different virtual network functions (VNFs). However, network state and traffic typically exhibit unpredictable variations due to stochastically...

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Podrobná bibliografia
Vydané v:	Proceedings of the International Symposium on Quality of Service s. 1 - 10
Hlavní autori:	Xiao, Yikai, Zhang, Qixia, Liu, Fangming, Wang, Jia, Zhao, Miao, Zhang, Zhongxing, Zhang, Jiaxing
Médium:	Konferenčný príspevok..
Jazyk:	English
Vydavateľské údaje:	New York, NY, USA ACM 24.06.2019
Edícia:	ACM Other Conferences
Predmet:	Computing methodologies > Machine learning Deep Reinforcement Learning Network Function Virtualization (NFV) Networks > Network algorithms > Control path algorithms > Network resources allocation Networks > Network components > Middle boxes > network appliances Networks > Network properties > Network dynamics QoS-Aware Resource Management Service Function Chain service function chain deep reinforcement learning network function virtualization (NFV) QoS-aware resource management
ISBN:	9781450367783, 145036778X
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Popis
Shrnutí:	With the evolution of network function virtualization (NFV), diverse network services can be flexibly offered as service function chains (SFCs) consisted of different virtual network functions (VNFs). However, network state and traffic typically exhibit unpredictable variations due to stochastically arriving requests with different quality of service (QoS) requirements. Thus, an adaptive online SFC deployment approach is needed to handle the real-time network variations and various service requests. In this paper, we firstly introduce a Markov decision process (MDP) model to capture the dynamic network state transitions. In order to jointly minimize the operation cost of NFV providers and maximize the total throughput of requests, we propose NFVdeep, an adaptive, online, deep reinforcement learning approach to automatically deploy SFCs for requests with different QoS requirements. Specifically, we use a serialization-and-backtracking method to effectively deal with large discrete action space. We also adopt a policy gradient based method to improve the training efficiency and convergence to optimality. Extensive experimental results demonstrate that NFVdeep converges fast in the training process and responds rapidly to arriving requests especially in large, frequently transferred network state space. Consequently, NFVdeep surpasses the state-of-the-art methods by 32.59% higher accepted throughput and 33.29% lower operation cost on average.
ISBN:	9781450367783 145036778X
DOI:	10.1145/3326285.3329056