Orchestrating multicast-oriented NFV trees in inter-DC elastic optical networks

Zeng, Menglu; Fang, Wenjian; Rodrigues, Joel J. P. C.; Zhu, Zuqing

doi:10.1109/icc.2016.7511588

Cited by 15 publications

(2 citation statements)

References 13 publications

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“…In this regard, the data center should be prepared to handle an increase, as well as a decrease in workload. During a decrease in workload, the resources are assigned to other processes [33], [54], [94], [97].…”

Section: ) Resource Allocation Perspectivesmentioning

confidence: 99%

NFV Data Centers: A Systematic Review

2020

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This work was supported under Grants for Brazilian PhD students with Coordination for the Improvement of Higher Education Personnel (CAPES). ABSTRACT Recently, the widespread use of Network Function Virtualization (NFV) has meant a significant shift in communication and network cloud-based services. NFV increases network function, allocation, and flexibility, for the implementation of new network services, The benefits from optimizing resource allocation in NFV data center include automation of the operational processes, reducing the operational efforts, and lowering capital costs. Despite being a hot topic, NFV data centers are still in their early stages. In this sense, there are some aspects involved in the current NFV implementations that required further investigation, such as performance evaluation and managemen. This paper presents an in-depth analysis of NFV applications in data center. Therefore, a Systematic Literature Review (SLR) was conducted aimed at studying and synthesizing the available works in the NFV state-of-the-art. Consequently, about 1,408 papers have been analyzed and filtered, evidencing a total of 65 relevant studies. This paper documents the relevance of the 65 papers, as well as provides an indepth insight into the primary open research questions concerning NFV architecture. In particular, highlighting the need for consolidating the integration of NFV in data centers by solving problems related to performance, dependability, resource allocation, cost, management, and resource interoperability. Based on the conducted SLR, several research gaps and open challenges have been identified, allowing the authors to provide new propositions and suggested future research avenues. Finally, the obtained results have shown that there is a strong need for further collaboration between academia and industry to conduct quality research and advance NFV practical implementations. INDEX TERMS Network function virtualization (NFV), software defined networking (SDN), cloud computing, data center, service function chain (SFC), performance evaluation.

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Section: ) Resource Allocation Perspectivesmentioning

confidence: 99%

NFV Data Centers: A Systematic Review

2020

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“…However, the dimension of service allocation in VMs has not been explored in the above work. Recently, special cases on a tree [27], [28] with only one source and one VM have been explored. Overall, the above approaches are not designed to support a service forest with multiple VNFs and multiple trees, and the problem here is more challenging because VNF conflict due to the overlapping of trees will occur.…”

Section: Related Workmentioning

confidence: 99%

Service Overlay Forest Embedding for Software-Defined Cloud Networks

Kuo

Shen

Yang

et al. 2017

2017 IEEE 37th International Conference on Distributed Computing Systems (ICDCS)

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Abstract-Network Function Virtualization (NFV) on SoftwareDefined Networks (SDN) can effectively optimize the allocation of Virtual Network Functions (VNFs) and the routing of network flows simultaneously. Nevertheless, most previous studies on NFV focus on unicast service chains and thereby are not scalable to support a large number of destinations in multicast. On the other hand, the allocation of VNFs has not been supported in the current SDN multicast routing algorithms. In this paper, therefore, we make the first attempt to tackle a new challenging problem for finding a service forest with multiple service trees, where each tree contains multiple VNFs required by each destination. Specifically, we formulate a new optimization, named Service Overlay Forest (SOF), to minimize the total cost of all allocated VNFs and all multicast trees in the forest. We design a new 3ρST -approximation algorithm to solve the problem, where ρST denotes the best approximation ratio of the Steiner Tree problem, and the distributed implementation of the algorithm is also presented. Simulation results on real networks for data centers manifest that the proposed algorithm outperforms the existing ones by over 25%. Moreover, the implementation of an experimental SDN with HP OpenFlow switches indicates that SOF can significantly improve the QoE of the Youtube service.

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SDN and NFV enabled service function multicast mechanisms over hybrid infrastructure

Wang

Huang

et al. 2018

Peer-to-Peer Netw. Appl.

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Orchestrating multicast-oriented NFV trees in inter-DC elastic optical networks

Cited by 15 publications

References 13 publications

NFV Data Centers: A Systematic Review

NFV Data Centers: A Systematic Review

Service Overlay Forest Embedding for Software-Defined Cloud Networks

SDN and NFV enabled service function multicast mechanisms over hybrid infrastructure

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