Research Directions in Network Service Chaining

John, Wolfgang; Pentikousis, Konstantinos; Agapiou, George; Jacob, Eduardo; Kind, Mario; Manzalini, Antonio; Risso, Fulvio; Staessens, Dimitri; Steinert, Rebecca; Meiroşu, Cătălin

doi:10.1109/sdn4fns.2013.6702549

Cited by 145 publications

(79 citation statements)

References 21 publications

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“…Recently, several research initiatives have worked towards combining SDN and NFV through Intel's DPDK, a set of libraries and drivers that facilitates the development of network-intensive applications and allows the implementation of fine-grained network functions [544]. Early work towards service chaining have been proposed by combining SDN and NFV technologies [545], [546], [547], [27], [548], and studies around the ForCES's [30] applicability to SDN-enhanced NFV have also come to light [538]. These are some of the early examples of the opportunities SDNs seem to bring to telecom and cloud providers.…”

Section: H Meeting Carrier-grade and Cloud Requirementsmentioning

confidence: 99%

Software-Defined Networking: A Comprehensive Survey

et al. 2015

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Abstract-The Internet has led to the creation of a digital society, where (almost) everything is connected and is accessible from anywhere. However, despite their widespread adoption, traditional IP networks are complex and very hard to manage. It is both difficult to configure the network according to predefined policies, and to reconfigure it to respond to faults, load and changes. To make matters even more difficult, current networks are also vertically integrated: the control and data planes are bundled together. Software-Defined Networking (SDN) is an emerging paradigm that promises to change this state of affairs, by breaking vertical integration, separating the network's control logic from the underlying routers and switches, promoting (logical) centralization of network control, and introducing the ability to program the network. The separation of concerns introduced between the definition of network policies, their implementation in switching hardware, and the forwarding of traffic, is key to the desired flexibility: by breaking the network control problem into tractable pieces, SDN makes it easier to create and introduce new abstractions in networking, simplifying network management and facilitating network evolution.In this paper we present a comprehensive survey on SDN. We start by introducing the motivation for SDN, explain its main concepts and how it differs from traditional networking, its roots, and the standardization activities regarding this novel paradigm. Next, we present the key building blocks of an SDN infrastructure using a bottom-up, layered approach. We provide an in-depth analysis of the hardware infrastructure, southbound and northbound APIs, network virtualization layers, network operating systems (SDN controllers), network programming languages, and network applications. We also look at cross-layer problems such as debugging and troubleshooting. In an effort to anticipate the future evolution of this new paradigm, we discuss the main ongoing research efforts and challenges of SDN. In particular, we address the design of switches and control platforms -with a focus on aspects such as resiliency, scalability, performance, security and dependability -as well as new opportunities for carrier transport networks and cloud providers. Last but not least, we analyze the position of SDN as a key enabler of a software-defined environment.

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Section: H Meeting Carrier-grade and Cloud Requirementsmentioning

confidence: 99%

Software-Defined Networking: A Comprehensive Survey

et al. 2015

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“…Context-aware service composition is enabled by exploiting SDN in deploying service compositions. The Next Generation Service Overlay Network (NGSON) specification offers context-aware service compositions by leveraging virtualization [20]. SDN and NFV support context-awareness and traffic engineering capabilities [34], to manage and compose services.…”

Section: Software-defined Service Composition (Sdsc)mentioning

confidence: 99%

“…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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“…It provides each user to individually customize a chain of services composed of multiple Virtualized Network Functions (VNFs) realized by NFV and enables dynamic provisioning of services according to the requests of users as well as auto-scaling, i.e., increasing or decreasing the scale of network functions according to their current level of demand. In order to control service chaining, it is necessary to provide services rapidly in response to the requests from users [11]. Furthermore, considering the current development of Internet of Things (IoT) technology, the number of users/devices that will be requesting service chains is expected to become very large in the future.…”

Section: Introductionmentioning

confidence: 99%

Evolutionary core-periphery structure and its application to network function virtualization

Otokura

Leibnitz

Shimokawa

et al. 2016

NOLTA

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Biological networks, such as that of the human brain, show a remarkable ability to adapt to changing environments by long-term evolution and short-term adaptations. This is facilitated by the core-periphery structure of the network, where a core of densely connected network nodes provides long-term functionality and robustness, while the periphery is responsible for adaptation on short time scales to changing conditions in the environment. In this paper, we discuss the characteristics of the core-periphery network structure and its relation with adaptability and evolvability, which we also illustrate with own experimental data from the brain's functional network. Based on this concept, we propose a mechanism for the adaptive placement of network functions to virtual servers in network function virtualization (NFV) under time-varying user requests. Our simulation results show that the number of server manipulations (migrations, merges, and replications of virtual machines) necessary to accommodate changes in network function requests can be greatly reduced compared to the conventional placement method.

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Research Directions in Network Service Chaining

Cited by 145 publications

References 21 publications

Software-Defined Networking: A Comprehensive Survey

Software-Defined Networking: A Comprehensive Survey

Integrating SDN and NFV with QoS-Aware Service Composition

Evolutionary core-periphery structure and its application to network function virtualization

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