A PCE-based architecture for the management of virtualized infrastructures

Donadio, Pasquale; Fioccola, Giovanni B.; Canonico, Roberto; Ventre, Giorgio

doi:10.1109/cloudnet.2014.6968996

“…NetFATE [132] proposes an orchestration approach for virtualized functions, taking into account the service chains needed by traffic flows and the desired QoE. In addition, other MANO frameworks and architectures have been proposed in [133], [134], [135], [136], [137], [138]. However, there are still some open issues.…”

Section: A Management and Orchestrationmentioning

confidence: 99%

“…Research Papers [132], [133], [134], [135], [136], [137], [138], [139], [140] Managements and orchestration frameworks and architectures ETSI Performance & Portability Best Practices [151] Defines the "best practices" that need to followed to obtain acceptable performance in NFV. Also gives performance test results on on NFV use cases such as DPI, C-RAN, BRAS, etc Practical Measurements [148] experiences in deploying a C-RAN on a 2G and 3G network Hardware Acceleration [26], [28], [29], [154] Various proposals for applying hardware acceleration to enhance the performance of some VNFs such as DPI, dedup and NAT Practical Measurements [148], [149] Measurements on the effect of transferring network and user functions to the cloud Simulation [143] Vendor tool that simulates possible energy saving resulting from NFV Placement [157], [158], [159], [160], [161] Deciding the optimal placement of functions in the operator's network or the cloud, following specific functions requirements and resource constraints Migration [166], [167] Allow for one or a group of VNFs to be migrated to disparate physical servers Scheduling [171], [172], [173] Allow multiple VNFs to be hosted in a single VM and schedule their efficient utilization of resources ETSI Security Problem Statement [184] Defines the security, trust and privacy threats in NFV ETSI Security Guidance [30] Provides guidance on how security, privacy and trust may be achieved in NFV.…”

Section: G Research Directions In Selected Nfv Use Casesmentioning

confidence: 99%

Network Function Virtualization: State-of-the-Art and Research Challenges

Mijumbi

¹

,

Serrat

²

,

Gorricho

³

et al. 2016

IEEE Commun. Surv. Tutorials

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Abstract-Network Function Virtualization (NFV) has drawn significant attention from both industry and academia as an important shift in telecommunication service provisioning. By decoupling Network Functions (NFs) from the physical devices on which they run, NFV has the potential to lead to significant reductions in Operating Expenses (OPEX) and Capital Expenses (CAPEX) and facilitate the deployment of new services with increased agility and faster time-to-value. The NFV paradigm is still in its infancy and there is a large spectrum of opportunities for the research community to develop new architectures, systems and applications, and to evaluate alternatives and trade-offs in developing technologies for its successful deployment. In this paper, after discussing NFV and its relationship with complementary fields of Software Defined Networking (SDN) and cloud computing, we survey the state-of-the-art in NFV, and identify promising research directions in this area. We also overview key NFV projects, standardization efforts, early implementations, use cases and commercial products.

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“…In fact, the first proposals for architecture with a virtual network controller are based on a centralized scheme, Optical Fiber and Wireless Communications as the one proposed in Ref. [74]. Centralized systems are suitable when the time between successive requests is long enough for the central controller to execute the resource allocation algorithm.…”

Section: Information Managementmentioning

confidence: 99%

Network Virtualization Over Elastic Optical Networks: A Survey of Allocation Algorithms

Bórquez‐Paredes¹,

Beghelli²,

Leiva³

2017

Optical Fiber and Wireless Communications

4

0

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Network virtualization has emerged as a paradigm for cloud computing services by providing key functionalities such as abstraction of network resources kept hidden to the cloud service user, isolation of different cloud computing applications, flexibility in terms of resources granularity, and on-demand setup/teardown of service. In parallel, flex-grid (also known as elastic) optical networks have become an alternative to deal with the constant traffic growth. These advances have triggered research on network virtualization over flex-grid optical networks. Effort has been focused on the design of flexible and virtualized devices, on the definition of network architectures and on virtual network allocation algorithms. In this chapter, a survey on the virtual network allocation algorithms over flexible-grid networks is presented. Proposals are classified according to a taxonomy made of three main categories: performance metrics, operation conditions and the type of service offered to users. Based on such classification, this work also identifies open research areas as multi-objective optimization approaches, distributed architectures, meta-heuristics, reconfiguration and protection mechanisms for virtual networks over elastic optical networks.under the conditions stated in a service level agreement (SLA), having dynamic scaling of resources and transparent access to network services, unaware of the location and hardware/ software characteristics of the required resources [2]. Apart from high bandwidth, cloud computing applications require the following functionalities from the underlying physical network [1]:• Abstraction: The technology/implementation specific details of the physical network resources are hidden to the users, due to the "computing as a utility" philosophy.• Isolation: Different cloud computing applications should not interfere with each other in the access to common physical resources.• Flexible resource granularity: The amount of resources (storage, processing power and bandwidth) required by different cloud computing applications might vary significantly.• On-demand setup/tear down: For efficiency, network resources should be set-up/torn down with a highly dynamic, rapidly reconfigurable and programmable network environment, something not possible with the current status of Internet [3].• Resiliency: Grid/cloud computing applications should continue running in spite of failures affecting the optical network.Network virtualization, which extends the well-known concepts of server and storage virtualization to networks, is envisaged as a key enabling technology for cloud computing services.As such, the benefits of running cloud applications on top of virtual networks (as opposed to on top of virtual servers alone, as usually done [4,5]), was evidenced by several preliminary studies on network virtualization for cloud computing. In Ref.[6], resource allocation of cloud-based data centres services was proposed by abstracting the service requests as virtual network requests. In Ref.[7], a network virt...

show abstract

“…NetFATE [133] proposes an orchestration approach for virtualized functions, taking into account the service chains needed by traffic flows and the desired QoE. In addition, other MANO frameworks and architectures have been proposed in [134], [135], [136], [137], [138], [139], [140]. However, there are still some open issues.…”

Section: A Management and Orchestrationmentioning

confidence: 99%

“…Research Papers [132], [133], [134], [135], [136], [137], [138], [139], [140] Managements and orchestration frameworks and architectures ETSI Performance & Portability Best Practices [151] Defines the "best practices" that need to followed to obtain acceptable performance in NFV. Also gives performance test results on on NFV use cases such as DPI, C-RAN, BRAS, etc Practical Measurements [148] experiences in deploying a C-RAN on a 2G and 3G network Hardware Acceleration [26], [28], [29], [154] Various proposals for applying hardware acceleration to enhance the performance of some VNFs such as DPI, dedup and NAT Practical Measurements [148], [149] Measurements on the effect of transferring network and user functions to the cloud Simulation [143] Vendor tool that simulates possible energy saving resulting from NFV Placement [157], [158], [159], [160], [161] Deciding the optimal placement of functions in the operator's network or the cloud, following specific functions requirements and resource constraints Migration [166], [167] Allow for one or a group of VNFs to be migrated to disparate physical servers Scheduling [171], [172], [173] Allow multiple VNFs to be hosted in a single VM and schedule their efficient utilization of resources ETSI Security Problem Statement [184] Defines the security, trust and privacy threats in NFV ETSI Security Guidance [30] Provides guidance on how security, privacy and trust may be achieved in NFV.…”

Section: G Research Directions In Selected Nfv Use Casesmentioning

confidence: 99%

Algorithms for advance bandwidth reservation in media production networks

Barshan

¹

,

Moens

²

,

Famaey

³

et al. 2015

2015 IFIP/IEEE International Symposium on Integrated Network Management (IM)

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Abstract-Network Function Virtualization (NFV) has drawn significant attention from both industry and academia as an important shift in telecommunication service provisioning. By decoupling Network Functions (NFs) from the physical devices on which they run, NFV has the potential to lead to significant reductions in Operating Expenses (OPEX) and Capital Expenses (CAPEX) and facilitate the deployment of new services with increased agility and faster time-to-value. The NFV paradigm is still in its infancy and there is a large spectrum of opportunities for the research community to develop new architectures, systems and applications, and to evaluate alternatives and trade-offs in developing technologies for its successful deployment. In this paper, after discussing NFV and its relationship with complementary fields of Software Defined Networking (SDN) and cloud computing, we survey the state-of-the-art in NFV, and identify promising research directions in this area. We also overview key NFV projects, standardization efforts, early implementations, use cases and commercial products.

show abstract

A PCE-based architecture for the management of virtualized infrastructures

Cited by 7 publications

References 16 publications

Network Function Virtualization: State-of-the-Art and Research Challenges

Network Function Virtualization: State-of-the-Art and Research Challenges

Network Virtualization Over Elastic Optical Networks: A Survey of Allocation Algorithms

Algorithms for advance bandwidth reservation in media production networks

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