Toward future networks: A viewpoint from ITU-T

Matsubara, Daisuke; Egawa, Takashi; Nishinaga, Nozomu; Kafle, Ved P.; Shin, Myung-Ki; Galis, Alex

doi:10.1109/mcom.2013.6476874

Cited by 32 publications

(13 citation statements)

References 3 publications

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“…These trends will be coupled with the economic drive given by a myriad of new players entering the Telco/ICT markets. These factors are expected to impact the economic market in a way that will drive investment outside of the network infrastructure boundary and stimulate the advent of new communications paradigms [5]. The edges of the networks will be transformed into complex Micro Data Centers consisting of a number of diverse and autonomous, but inter-related nodes, devices, machines: this will create a "complexity" which has to be managed and controlled [8].…”

Section: Evolutionary Scenario and Use Casesmentioning

confidence: 99%

The dynamic placement of virtual network functions

Clayman

Maini

Galis

et al. 2014

2014 IEEE Network Operations and Management Symposium (NOMS)

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177

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This paper addresses the problem of managing highly dynamic network and service environments, where virtual nodes and virtual links are created and destroyed depending on traffic volumes, service requests, or high-level goals such as reduction in energy consumption. This problem will be one of the main technical challenges to be faced in the evolution towards Future Networks (FN). Emerging paradigms such as Software Defined Networks (SDN) and Network Function Virtualization (NfV) are concrete steps towards infrastructures where network functions and services will be executed as applications in ensembles of virtual machines (VMs) hosted in pervasive standard hardware resources located across a network. The paper argues that in order to manage these virtual infrastructures there is a need to introduce high-level systems orchestration. The paper describes an architecture based on an orchestrater that ensures the automatic placement of the virtual nodes and the allocation of network services on them, supported by a monitoring system that collects and reports on the behaviour of the resources. The orchestrater manages the creation and removal of the virtual nodes, as well as configuring, monitoring, running and stopping software on them. As a proof of these concepts, a distributed orchestrater prototype has been designed, implemented and tested with the results of different placement algorithms presented. �� 2014 IEEE

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Section: Evolutionary Scenario and Use Casesmentioning

confidence: 99%

The dynamic placement of virtual network functions

Clayman

Maini

Galis

et al. 2014

2014 IEEE Network Operations and Management Symposium (NOMS)

Self Cite

177

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“…SUN needs to specify key functionalities for context control and management to support context awareness which has significant impact both NGN and FN. In the relationship among NGN, SUN and FN, context awareness as a smart feature of SUN has two aspects (see Figure 1) Each bock in Figure 2 is identified as follows: 1) context source: an entity that provides context information periodically or dynamically, 2) context awareness functions: an entity that dynamically capture context information, monitor the context change, 3) context gathering: collecting context information from distributed entities/context sources (e.g., end-users, end-devices, network entities, time), 4) context repository and knowledge base: storing the generated contexts as well as retrieving those contexts whenever necessary, and containing the information for Service Level Agreement (SLA) and policies, 5) context management and analysis: filtering and statistical analysis of the context information including the prediction of upcoming situation, 6) context request and delivery: secure delivery and update of context information to the entities which request the context information, and 7) context users: network elements which have capabilities for network control and management in SUN.…”

Section: Context Awareness For Smartnessmentioning

confidence: 99%

“…ITU-T Study Group (SG) 13 [1] has been involved with the developments of standards on various networks and services such as IP-based networks, next generation networks (NGN), fixed mobile convergence, IPTV, and recently cloud computing and Future Networks (FN) [2][3]. FN, one of several new initiatives in SG13, are being studied based on ITU-T Recommendations identifying four objectives (see Figure 1) and twelve design goals [2].…”

Section: Introductionmentioning

confidence: 99%

Context awareness for Smart Ubiquitous Networks

Kim¹,

Lee

2014

2014 International Conference on Electronics, Information and Communications (ICEIC)

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ITU-T has identified context awareness as a keycapability for providing "smartness" in Smart Ubiquitous Networks (SUN). Based on standardization activity for SUN, this paper introduces context awareness for SUN, including functional model and operations as challenges for various networking capabilities using context awareness. It aims to stimulate the development of standards and urgent technical solutions through related research work for SUN as an early realization of Future Networks.

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“…The main obstacle of traditional networks to provide full exploitation of their resources and accelerate innovation is caused by the lack of integration of the variety of hardware and software appliances. Moreover, the lack of standardized interfaces make network management costly and slow adapting to modern trends, and user demands [14,20,27].…”

Section: Introductionmentioning

confidence: 99%

Integrating SDN and NFV with QoS-Aware Service Composition

Cardellini

Grbac

Kassler

et al. 2018

Lecture Notes in Computer Science

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Abstract. Traditional networks are transformed to enable full integration of heterogeneous hardware and software functions, that are configured at runtime, with minimal time to market, and are provided to their end users on "as a service" principle. Therefore, a countless number of possibilities for further innovation and exploitation opens up. Network Function Virtualization (NFV) and Software-Defined Networking (SDN) are two key enablers for such a new flexible, scalable, and service-oriented network architecture. This chapter provides an overview of QoS-aware strategies that can be used over the levels of the network abstraction aiming to fully exploit the new network opportunities. Specifically, we present three use cases of integrating SDN and NFV with QoS-aware service composition, ranging from the energy efficient placement of virtual network functions inside modern data centers, to the deployment of data stream processing applications using SDN to control the network paths, to exploiting SDN for context-aware service compositions.

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Toward future networks: A viewpoint from ITU-T

Cited by 32 publications

References 3 publications

The dynamic placement of virtual network functions

The dynamic placement of virtual network functions

Context awareness for Smart Ubiquitous Networks

Integrating SDN and NFV with QoS-Aware Service Composition

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