Shared protection in virtual networks

Barla, Isil Burcu; Hoffmann, K.; Hoffmann, Marco; Schupke, Dominic; Carle, Georg

doi:10.1109/iccw.2013.6649236

Cited by 4 publications

(5 citation statements)

References 13 publications

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“…We apply this concept to network virtualization, where we allow the sharing of the redundant virtual link and DC resources among different services. An architecture proposal for redundant virtual resource sharing has been made in [11]. The authors in [12] focus on PIPlayer shared protection and assume the VNet topology to be given.…”

Section: Related Workmentioning

confidence: 99%

“…The objective function of VNO-Resilience, (11), minimizes the VNet setup cost. The VNet cost consists of the link cost, network node cost and VM cost, where each of them has again two parts, namely the fixed setup cost for having a new element in the VNet and the capacity dependent cost depending on the requested capacity on that element.…”

Section: A Vno-resiliencementioning

confidence: 99%

See 1 more Smart Citation

Scalable resilient virtual network design algorithms for cloud services

Harter

Hoffmann

Schupke

et al. 2014

2014 6th International Workshop on Reliable Networks Design and Modeling (RNDM)

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The dependency of businesses and private applications on cloud solutions is increasing day by day. Still, many businesses are reluctant to adopt cloud solutions mainly due to reliability concerns. Service degradation or outages can be caused both due to the cloud domain and the communication network connecting the users to the cloud, which are operated mainly by different entities. Network virtualization with combined control for network and IT domains enables an end-toend resilience design. Resilience, however, can be very costly due to requirements for redundant resources. Shared protection is a solution that offers a compromise between reduced redundant resource requirements and fast recovery. In this paper, we present a mathematical model for resilient virtual network design with shared protection for cloud services. Due to the scalability issues of the optimization model, we also provide two novel heuristic algorithms. Both algorithms are scalable, enable a near optimal resilient virtual network design with shared protection for cloud services. We show that shared protection offers 10-20% less cost and resource requirement compared with dedicated protection.

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Section: Related Workmentioning

confidence: 99%

Section: A Vno-resiliencementioning

confidence: 99%

Scalable resilient virtual network design algorithms for cloud services

Harter

Hoffmann

Schupke

et al. 2014

2014 6th International Workshop on Reliable Networks Design and Modeling (RNDM)

Self Cite

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show abstract

“…al. next examine resilience in VNs using redundant back-up links (refereed to as shared protection) [12], similar to the approach employed in [71] for physical networks. They use redundant resources shared amongst multiple VNs, accomplished through appropriate information exchange between the PN operator and VN operator.…”

Section: Bui Et Al Investigate Two Methods For Ensuring Resilience In...mentioning

confidence: 99%

On Resilience in Cloud Computing

Welsh

Benkhelifa

2020

ACM Comput. Surv.

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Cloud infrastructures are highly favoured as a computing delivery model worldwide, creating a strong societal dependence. It is therefore vital to enhance their resilience, providing persistent service delivery under a variety of conditions. Cloud environments are highly complex and continuously evolving. Additionally, the plethora of use-cases ensures requirements for persistent service delivery vary. As a contribution to knowledge, this work surveys resilience techniques for cloud environments. We apply a novel perspective using a layered model of traditional and emerging cloud paradigms. Works are then classified according to the Resilinets model. For each layer, the most common techniques with limitations are derived including an actor’s strength in influencing resilience in the cloud with each technique. We conclude with some future challenges to the field of resilient cloud computing.

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“…The latter research forms part of the focus of our research, where the intention is to shed light on some promising trends in cloud computing resilience with completely alternative architectures. This is further discussed in the next section Reactive error ranking and appropriate technique [11] Reactive introspection [12] Proactive high diversity for replica storage [13] Proactive memory stored backups Service Composition Graph based, interdepdency [15] Service Composition Agent-based [16] Low Level Diversity data-centre [17] Quality Adjustment brownout [18] Diversity Replicas Diversity Structure height Organisation VM Scheduling for resilience [20] Disaster Recovery Storage [21] Reactive reset upon fault Hypervisor [22] Proactive Diversity Hypervisor [23] QoR Evaluation Proactive service provisioning Diversity Geo-distribution [25] VM to PHY Mapping Design [26] VM to PHY Mapping Backup links [27] Redundancy VNet backup links III. ALTERNATIVE ARCHITECTURES FOR CLOUD COMPUTING RESILIENCE Some work will choose to encourage a conventionally different cloud architecture in order to provide increased resilience (Fig.…”

Section: State-of-the-art In Cloud Resiliencementioning

confidence: 99%

Perspectives on Resilience in Cloud Computing: Review and Trends

Welsh

Benkhelifa

2017

2017 IEEE/ACS 14th International Conference on Computer Systems and Applications (AICCSA)

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Abstract-The development of resilient distributed systems is seen as essential to maintaining stable business and staterun processes due to information systems now underpinning most aspects of society. Cloud computing is now one of the most pervasive usage paradigms and due its novelty, research surrounding its resilience is largely lacking and often varied in terms of developed solutions. Therefore this paper provides an up-to-date review of resilience work in cloud computing. This includes methods of measuring and evaluating resilience, solutions for enabling resilience and alternative architectures developed with a focus upon ensuring resilience from the ground up. Firstly, resilience is defined within the context of cloud computing in order to categorise the work appropriately.

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Shared protection in virtual networks

Cited by 4 publications

References 13 publications

Scalable resilient virtual network design algorithms for cloud services

Scalable resilient virtual network design algorithms for cloud services

On Resilience in Cloud Computing

Perspectives on Resilience in Cloud Computing: Review and Trends

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