Abstract

This paper investigates the problem of how to optimize the provisioning of virtual network function service chains (VNF-SCs) in elastic optical inter-datacenter networks (EO-IDCNs) under elastic optical networking and DC capacity constraints. We take advantage of the broker-based hierarchical control paradigm for the orchestration of cross-stratum resources and propose to realize incentive-driven VNF-SC provisioning with a noncooperative mixed-strategy gaming approach. The proposed gaming model enables tenants to compete for VNF-SC provisioning services due to revenue and quality-of-service incentives and therefore can motivate more reasonable selections of provisioning schemes. We detail the modeling of the game, discuss the existence of the Nash equilibrium states, and design an auxiliary graph-based heuristic algorithm for tenants to compute approximate equilibrium solutions in the games. A dynamic resource pricing strategy, which can set the prices of network resources in real time according to the actual network status, is also introduced for EO-IDCNs as a complementary method to the game-theoretic approach. Results from extensive simulations that consider both static network planning and dynamic service provisioning scenarios indicate that the proposed game-theoretic approach facilitates both higher tenant and network-wide profits and improves the network throughput as well compared with the baseline algorithms, while the dynamic pricing strategy can further reduce the request blocking probability with a factor of $\sim 2.4\times$.

© 2018 Optical Society of America

Deep-Learning-Assisted Network Orchestration for On-Demand and Cost-Effective vNF Service Chaining in Inter-DC Elastic Optical Networks

Baojia Li, Wei Lu, Siqi Liu, and Zuqing Zhu
J. Opt. Commun. Netw. 10(10) D29-D41 (2018)

Dynamic Slicing Approach for Multi-Tenant 5G Transport Networks [Invited]

Muhammad Rehan Raza, Matteo Fiorani, Ahmad Rostami, Peter Öhlen, Lena Wosinska, and Paolo Monti
J. Opt. Commun. Netw. 10(1) A77-A90 (2018)

Delay-aware and resource-efficient service function chain mapping in inter-datacenter elastic optical networks

Min Zhu, Jiahua Gu, Tianyu Shen, Jiao Zhang, and Pingping Gu
J. Opt. Commun. Netw. 14(10) 757-770 (2022)

On establishing and task scheduling of data-oriented vNF-SCs in an optical DCI

Zichen Xu and Zuqing Zhu
J. Opt. Commun. Netw. 14(3) 89-99 (2022)

Deep-NFVOrch: leveraging deep reinforcement learning to achieve adaptive vNF service chaining in DCI-EONs

Baojia Li, Wei Lu, and Zuqing Zhu
J. Opt. Commun. Netw. 12(1) A18-A27 (2020)