Optimal Virtual Slice Composition Toward Multi-Tenancy Over Hybrid OCS/OPS Data Center Networks

Pages, Albert; Sanchis, Miguel Perez; Peng, Shuping; Perelló, Jordi; Simeonidou, Dimitra; Spadaro, Salvatore

doi:10.1364/jocn.7.000974

Cited by 13 publications

(14 citation statements)

References 19 publications

(22 reference statements)

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“…Such a process involves the mapping of the VMs and virtual links onto computing and network resources, respectively. Their joint mapping generally allows for an enhanced utilization of the underlying physical infrastructure, increasing the number of supported VDCs [6]. In this regard, a DA-DC architecture should further increase the number of allocated VDCs, since the different VMs may exploit its potentially higher computing resource utilization.…”

Section: Vdc Allocation In Disaggregated Dcsmentioning

confidence: 99%

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Optimal VDC Service Provisioning in Optically Interconnected Disaggregated Data Centers

et al. 2016

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Abstract-Virtual Data Center (VDC) is a key service in modern Data Center (DC) infrastructures. However, the rigid architecture of traditional servers inside DCs may lead to blocking situations when deploying VDC instances. To overcome this problem, the disaggregated DC paradigm is introduced. In this paper, we present an Integer Linear Programming (ILP) formulation to optimally allocate VDC requests on top of an optically-interconnected disaggregated DC infrastructure, aiming to quantify the benefits that such architecture can bring when compared to traditional server-centric DCs. Moreover, a lightweight Simulated Annealing (SA)-based heuristic is provided for scenarios where the ILP scalability is challenged. The obtained numerical results reveal the substantial benefits yielded by the resource disaggregation paradigm.

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Section: Vdc Allocation In Disaggregated Dcsmentioning

confidence: 99%

“…DA-DCs promise a dramatically higher utilization of the computing resources. This feature is especially beneficial when providing complex infrastructure services, such as VDCs [5], [6]. To the best of our knowledge, no studies exist to date quantifying the benefits of optically-interconnected DA-DCs for efficiently allocating VDC services.…”

Section: Introductionmentioning

confidence: 99%

Optimal VDC Service Provisioning in Optically Interconnected Disaggregated Data Centers

et al. 2016

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“…The VON is then embedded according to a shortest path routing. Pages et al [298] have considered embeddings that minimize the required optical transponders. che2016cos c) Survivable Embedding: Survivability of a virtual optical network, i.e., its continued operation in the face of physical node or link failures, is important for many applications that require dependable service.…”

Section: Virtualizationmentioning

confidence: 99%

Software Defined Optical Networks (SDONs): A Comprehensive Survey

Thyagaturu

Mercian

McGarry

et al. 2016

IEEE Commun. Surv. Tutorials

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129

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The emerging Software Defined Networking (SDN) paradigm separates the data plane from the control plane and centralizes network control in an SDN controller. Applications interact with controllers to implement network services, such as network transport with Quality of Service (QoS). SDN facilitates the virtualization of network functions so that multiple virtual networks can operate over a given installed physical network infrastructure. Due to the specific characteristics of optical (photonic) communication components and the high optical transmission capacities, SDN based optical networking poses particular challenges, but holds also great potential. In this article, we comprehensively survey studies that examine the SDN paradigm in optical networks; in brief, we survey the area of Software Defined Optical Networks (SDONs). We mainly organize the SDON studies into studies focused on the infrastructure layer, the control layer, and the application layer. Moreover, we cover SDON studies focused on network virtualization, as well as SDON studies focused on the orchestration of multilayer and multidomain networking. Based on the survey, we identify open challenges for SDONs and outline future directions

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“…The optimization problem at hand consists on maximizing the number of VDCs to be mapped over a DC infrastructure with constrained capacity given a known set of VDC requests, as in our previous work presented in [12]. For this, we define as the request set.…”

Section: Vdc Provisioning: a Case Studymentioning

confidence: 99%

“…The benefits of a joint mapping approach have been demonstrated in the literature (e.g. [12], [13]), increasing the acceptance of the VDCs. In this regard, it is the role of the orchestrator not to only provide the joint mapping of the VDCs but to also coordinate all the involved software services to achieve the desired deployment.…”

Section: Vdc Provisioning: a Case Studymentioning

confidence: 99%

Resource orchestration in SDN-based future optical data centres

Spadaro

Pages

Agraz

et al. 2016

2016 International Conference on Optical Network Design and Modeling (ONDM)

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Data center (DC) infrastructures are a key element for nowadays Internet and cloud services. However, due to the increase of traffic that DCs have to manage, optical-based network architectures are being investigated to overcome the limitations of nowadays electronic-based intra-DC network (DCN) architectures. In this regard, it becomes imperative to coordinate the allocation of very heterogeneous resources (IT and optical network) for the efficient provisioning of services inside the DC.\ud Such process is known as orchestration and allows the DC administrator to optimize the utilization of his physical\ud infrastructure. In fact, resource orchestration has gained the\ud interest of the industry and several software flavors have emerged\ud to perform such operation. As a case of study, in this paper we\ud focus on the provisioning of Virtual DC (VDC) instances belonging\ud to different tenants over a shared DC infrastructure with optical\ud DCN. To this end, an architecture for the orchestration and\ud control of optically interconnected DCs in aims of efficient VDC\ud provisioning is presented. The proposed solution is based on\ud OpenStack for the orchestration and the concept of Software\ud Defined Networking (SDN) for the control aspect of the network.\ud To highlight the benefits of an orchestrated approach to DC\ud resource management, several tests are performed, considering\ud both static and dynamic VDC provisioning. The obtained results\ud confirm the potential benefits of resource orchestration in DCs.Peer ReviewedPostprint (published version

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Optimal Virtual Slice Composition Toward Multi-Tenancy Over Hybrid OCS/OPS Data Center Networks

Cited by 13 publications

References 19 publications

Optimal VDC Service Provisioning in Optically Interconnected Disaggregated Data Centers

Optimal VDC Service Provisioning in Optically Interconnected Disaggregated Data Centers

Software Defined Optical Networks (SDONs): A Comprehensive Survey

Resource orchestration in SDN-based future optical data centres

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