Data-Center Architecture Impacts on Virtualized Network Functions Service Chain Embedding with High Availability Requirements

Herker, Sandra; An, Xueli; Kieß, Wolfgang; Beker, Sergio; Kirstaedter, Andreas

doi:10.1109/glocomw.2015.7414158

Cited by 70 publications

(50 citation statements)

References 15 publications

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“…The research in [39] focused on the suitability of different architectures of data center for a resilient SFC and the placement of VNFs with high availability constraints. In [40], the joint VNF placement and path selection problem were studied. The authors proposed a chain deployment algorithm to balance the chain length and reuse factor; its target was to serve as many demands as possible under limited resources.…”

Section: Related Workmentioning

confidence: 99%

Towards Supporting Security and Privacy for Social IoT Applications: A Network Virtualization Perspective

Sun

Huang

Sangaiah

et al. 2019

Security and Communication Networks

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Network function virtualization (NFV) is a new way to provide services to users in a network. Different from dedicated hardware that realizes the network functions for an IoT application, the network function of an NFV network is executed on general servers, and in order to achieve complete network functions, service function chaining (SFC) chains virtual network functions to work together to support an IoT application. In this paper, we focus on a main challenge in this domain, i.e., resource efficient provisioning for social IoT application oriented SFC requests. We propose an online SFC deployment algorithm based on the layered strategies of physical networks and an evaluation of physical network nodes, which can efficiently reduce bandwidth resource consumption (OSFCD-LSEM) and support the security and privacy of social IoT applications. The results of our simulation show that our proposed algorithm improves the bandwidth carrying rate, time efficiency, and acceptance rate by 50%, 60%, and 15%, respectively.

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Section: Related Workmentioning

confidence: 99%

Towards Supporting Security and Privacy for Social IoT Applications: A Network Virtualization Perspective

Sun

Huang

Sangaiah

et al. 2019

Security and Communication Networks

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“…As shown in [5], [6], to provide highly reliable communication, the most effective VNF deployment is to utilize multiple switches, e.g., vS or ToR switch, that can detect failure in hardand software and redirect traffic to the corresponding available backup VNF, if an active server or VNF fails as shown in Fig. 1, where SFC is parallelized into n = 2 active and one backup sub-SFCs.…”

Section: Parallelized Sfc and Backup Strategiesmentioning

confidence: 99%

A Reliability Study of Parallelized VNF Chaining

Engelmann

Jukan

2018

2018 IEEE International Conference on Communications (ICC)

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In this paper, we study end-to-end service reliability in Data Center Networks (DCN) with flow and Service Function Chains (SFCs) parallelism. In our approach, we consider large flows to i) be split into multiple parallel smaller sub-flows; ii) SFC along with their VNFs are replicated into at least as many VNF instances as there are sub-flows, resulting in parallel sub-SFCs; and iii) all sub-flows are distributed over multiple shortest paths and processed in parallel by parallel sub-SFCs. We study service reliability as a function of flow and SFC parallelism and placement of parallel active and backup sub-SFCs within DCN. Based on the probability theory and by considering both server and VNF failures, we analytically derive for each studied VNF placement method the probability that all sub-flows can be successfully processed by the parallelized SFC without service interruption. We evaluate the amount of backup VNFs required to protect the parallelized SFC with a certain level of service reliability. The results show that the proposed flow and SFC parallelism in DCN can significantly increase end-to-end service reliability, while reducing the amount of backup VNFs required, as compared to traditional SFCs with serial traffic flows.

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“…In Herker et al work [12], SFC requests are mapped to the physical network to build a primary chain, and backup chains are decided based on that primary chain. Engelmann et al [13] propose to split service flows into multiple parallel smaller sub-flows sharing the load and providing only one backup flow for reliability guarantee.…”

Section: Related Workmentioning

confidence: 99%

“…Without any loss of generality, and inspired by works ( [12], [15]), we only consider server and switch failures and ignore link failures. We also consider that all equipments of a same type have the same level of availability.…”

Section: Problem Statementmentioning

confidence: 99%

See 1 more Smart Citation

An Availability-Aware SFC Placement Algorithm for Fat-Tree Data Centers

Moualla¹,

Turletti²,

Saucez³

2018

2018 IEEE 7th International Conference on Cloud Networking (CloudNet)

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Complex inter-connections of virtual functions form the so-called Service Function Chains (SFCs) deployed in the Cloud. Such service chains are used for critical services like e-health or autonomous transportation systems and thus require high availability. Respecting some availability level is hard in general, but it becomes even harder if the operator of the service is not aware of the physical infrastructure that will support the service, which is the case when SFCs are deployed in multi-tenant data centers. In this paper, we propose an algorithm to solve the placement of topology-oblivious SFC demands such that placed SFCs respect availability constraints imposed by the tenant. The algorithm leverages Fat-Tree properties to be computationally doable in an online manner. The simulation results show that it is able to satisfy as many demands as possible by spreading the load between the replicas and enhancing the network resources utilization.

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Data-Center Architecture Impacts on Virtualized Network Functions Service Chain Embedding with High Availability Requirements

Cited by 70 publications

References 15 publications

Towards Supporting Security and Privacy for Social IoT Applications: A Network Virtualization Perspective

Towards Supporting Security and Privacy for Social IoT Applications: A Network Virtualization Perspective

A Reliability Study of Parallelized VNF Chaining

An Availability-Aware SFC Placement Algorithm for Fat-Tree Data Centers

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