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IEEE Conference on Computer Communications Workshops (IEEE INFOCOM)

作者： Municio, Esteban Cevik, Mert Ruth, Paul Marquez-Barja, Johann M. Univ Antwerp IDLab Imec Antwerp Belgium RENCI Chapel Hill NC USA

ISBN: (纸本)9781665404433

Current trends on 5G network programmability evidence the need for end-to-end flexibility from the node and edge all the way to the cloud. Such multi-domain scenarios require realistic testbeds where different task-offloading algorithms, scheduling functions, and service orchestration techniques can be deployed and tested. While many of these research components can be often explored locally in small and isolated testbeds, new 5G demands are requesting for inter-operable platforms with a wider and a more global scope. The goal for these global platforms is that they can cope with multi-tier hierarchical architectures that are capable to face intense computational processes and heavy network traffic loads, while preserving dependability and keeping a low latency on the task executions and data transmission. In this paper we demonstrate a world-wide attempt to integrate different high-performance testing facilities, located in USA, Belgium, and The Netherlands, to enable experimentation on top of such large and complex architectures. In order to do this, we describe and deploy a multi-domain use case that can benefit from a global hierarchical infrastructure. Finally, we detail the performance characteristics of the deployment, discussing the experiences and technical challenges, and presenting the lessons learned we obtained when building and testing such experimental use case.

关键词： Orchestration Control Monitoring Experimentation network programmability SDN Industrial IoT

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Experimenting in a Global Multi-Domain Testbed

Experimenting in a Global Multi-Domain Testbed

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IEEE Conference on Computer Communications Workshops (IEEE INFOCOM)

作者： Municio, Esteban Cevik, Mert Ruth, Paul Marquez-Barja, Johann M. Univ Antwerp IDLab Imec Antwerp Belgium RENCI Chapel Hill NC USA

ISBN: (纸本)9781665404433

Upcoming AI-based and SG applications are demanding new network management approaches that are capable to cope with unprecedented levels of flexibility, scalability and energy efficiency. In order to make these use cases tangible and feasible, network management solutions aim to rely on multi-domain, multi-tier architectures that permit complex end-to-end orchestration of network resources. However, current research on scheduling functions and task-offloading algorithms often focus on one single-domain, and the exploration of large-scale inter-operable solutions becomes a challenge. Fortunately for the networking research community, a number of available testing facilities deployed at different geographical location along the world can be integrated to be used as a single joint multi-domain infrastructure. In this demo paper, we present a hands-off experience of how to integrate different high-performance testbeds, located in USA, Belgium and The Netherlands, in order to enable multi-domain large-scale experimentation. We demonstrate end-to-end performance characteristics of the testbed integration and we describe the main takeaways and lessons learned to drive researchers towards successful deployments in such end-to-end global infrastructure.

关键词： Orchestration Control Monitoring Experimentation network programmability SDN Industrial IoT

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Enhancing Orchestration and Infrastructure programmability in SDN With NOTORIETY

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IEEE ACCESS 2020年 8卷 195487-195502页

作者： Costa, Kevin Barros Dantas Silva, Felipe S. Schneider, Lucas M. Neto, Emidio Paiva Neto, Augusto Venancio Esposito, Flavio Sci & Technol Rio Grande Norte IFRN Fed Inst Educ LaTARC Res Lab BR-59015000 Natal RN Brazil Fed Univ Rio Grande Norte UFRN Dept Informat & Appl Math DIMAp Grad Program Syst & Comp PPgSC BR-59078970 Natal RN Brazil Inst Telecomunicacoes P-3810164 Aveiro Portugal St Louis Univ Dept Comp Sci St Louis MO 63103 USA

Software-Defined networking (SDN) controllers are nowadays expected to manage large infrastructures and services in a practical, efficient, and optimized way. To achieve such control, SDN networks should increase the automation of orchestration functions to fullfil both service and network management lifecycles. However, network management applications have stringent resource demands that orchestrators need to honor. Most of the available orchestrators focus on high-level approaches that rely exclusively on the Northbound API (NB-API). A few strategies have also been designed to optimize the controllers internal mechanisms through features enabled by the Southbound API (SB-API). However, such solutions do not focus on optimal information delivery to the orchestrator, a crucial property to provide prompt feedback in response to network events, and to potentially drive self-healing and auto-scaling properties. To address such need, we present NOTORIETY, an orchestration system that provides an abstraction for real-time SDN network controller event message handling. NOTORIETY is able to maximize the orchestration capabilities of SDN controllers including innovative features for processing and delivering network event information. NOTORIETYs design consists of mechanisms that empower SDN-controlled entities by applying filtering rules to efficiently control and optimize data flows provided by the SDN controller. We implemented a testbed to assess our NOTORIETY proposal following the guidelines provided in the RFC 8456, and we benchmark its performance over three SDN controllers (OpenDaylight, ONOS, and Floodlight). The evaluation results reveal the effectiveness of NOTORIETY in reducing the execution time of SDN requests, load processing, and overall data marshaling volume in several scenarios.

关键词： Optimization Process control Proposals network topology Topology Real-time systems Complexity theory Software-defined networking SDN controller orchestration network programmability

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Towards visual programming abstractions in Software-Defined networking

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INTERNET TECHNOLOGY LETTERS 2022年第3期5卷

作者： Rojas, Elisa Zaballa, Eder Ollora Noci, Victoria Univ Alcala Dept Automat Alcala De Henares Spain Tech Univ Denmark DTU Foton Lyngby Denmark

Since Software-Defined networking (SDN) emerged, the research community and industry have developed numerous projects and fostered novel use cases. However, engineers now need to learn how to program the control and data planes, which might slow down technology acceptance. To accelerate it, visual programming abstractions facilitate the incorporation of SDN technologies and assist in creating new applications. So far, very little effort has been made in this field. This letter presents an early-stage SDN visual abstraction initiative based on the Scratch/Blockly programming framework, initially aimed at kids. The objective is to illustrate how this work could be extended to provide value-added resources for network programming.

关键词： blockly human-defined networking network programmability scratch Software-Defined networking softwarized networks visual programming

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The Programmable Data Plane: Abstractions, Architectures, Algorithms, and Applications

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ACM COMPUTING SURVEYS 2021年第4期54卷 82-82页

作者： Michel, Oliver Bifulco, Roberto Retvari, Gabor Schmid, Stefan Univ Vienna Fac Comp Sci Wahringer Str 29 A-1090 Vienna Austria NEC Labs Europe Kurfursten Anlage 36 D-69115 Heidelberg Germany Budapest Univ Technol & Econ Magyar Tudosok Korutja 2 H-1117 Budapest Hungary

Programmable data plane technologies enable the systematic reconfiguration of the low-level processing steps applied to network packets and are key drivers toward realizing the next generation of network services and applications. This survey presents recent trends and issues in the design and implementation of programmable network devices, focusing on prominent abstractions, architectures, algorithms, and applications proposed, debated, and realized over the past years. We elaborate on the trends that led to the emergence of this technology and highlight the most important pointers fromthe literature, casting different taxonomies for the field, and identifying avenues for future research.

关键词： Programmable data planes network programmability packet processing in-network computation programmable switches

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RoCC: Robust Congestion Control for RDMA 20

RoCC: Robust Congestion Control for RDMA

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16th International Conference on Emerging networking Experiments and Technologies

作者： Taheri, Parvin Menikkumbura, Danushka Vanini, Erico Fahmy, Sonia Eugster, Patrick Edsall, Tom Cisco Syst San Jose CA 95134 USA Purdue Univ W Lafayette IN 47907 USA Univ Svizzera Italiana Lugano Switzerland Tech Univ Darmstadt Darmstadt Germany

ISBN: (纸本)9781450379489

In this paper, we present RoCC, a robust congestion control approach for datacenter networks based on RDMA. RoCC leverages switch queue size as an input to a PI controller, which computes the fair data rate of flows in the queue, signaling it to the flow sources. The PI parameters are self-tuning to guarantee stability, rapid convergence, and fair and near-optimal throughput in a wide range of congestion scenarios. Our simulation and DPDK implementation results show that RoCC can achieve up to 7x reduction in PFC frames generated under high average load levels, compared to DCQCN. At the same time, RoCC can achieve up to 8x lower tail latency, compared to DCQCN and HPCC. We also find that RoCC does not require PFC. The functional components of RoCC are implementable in P4-based and fixed-function switch ASICs.

关键词： Datacenter Congestion Control RDMA network programmability

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network Functions Virtualization: The Long Road to Commercial Deployments

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IEEE ACCESS 2019年 7卷 60439-60464页

作者： Rehman, A. U. Aguiar, Rui L. Barraca, Joao Paulo Inst Telecomunicacoes P-3810193 Aveiro Portugal Univ Aveiro Campus Univ Santiago P-3810193 Aveiro Portugal

network operators are under pressure to offer efficient network-based services while keeping service deployment costs to a minimum. network functions virtualization (NFV) can potentially revolutionize network-based services bringing low-deployment costs for network operators. The NFV has been introduced to ultimately extend the non-proprietary and open-standard-based model to network and service deployments, significant improvements to today's proprietary locked implementations. Notwithstanding the continuous efforts of both academia and industry to support the NFV paradigm, the current NFV solutions offered are still in its infancy. In this survey, we provide a detailed background of NFV to establish a comprehensive understanding of the subject, ranging from the basics to more advanced topics. Moreover, we offer a comprehensive overview of the NFV main concepts, standardization efforts, the benefits of NFV, and discussions of the NFV architecture as defined by the European telecommunications standardization institute (ETSI). Furthermore, we discuss the NFV applicability and current open source projects. We then highlight NFV requirements, design considerations, and developmental architectural impairments and barriers to commercial NFV deployments. Finally, we conclude enumerating future directions for NFV development.

关键词： network functions virtualization virtual network functions server virtualization hypervisors containers Unikernels network management and orchestration network programmability network softwarization

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5G-EmPOWER: A Software-Defined networking Platform for 5G Radio Access networks

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IEEE TRANSACTIONS ON network AND SERVICE MANAGEMENT 2019年第2期16卷 715-728页

作者： Coronado, Estefania Khan, Shah Nawaz Riggio, Roberto FBK CREATE NET Wireless & Networked Syst I-38123 Trento Italy Ericsson Res S-16446 Stockholm Sweden

Software-defined networking (SDN) is making their way into the fifth generation of mobile communications. For example, 3GPP is embracing the concept of control-user plane separation (a cornerstone concept in SDN) in the 5G core and the radio access network (RAN). In this paper, we introduce a flexible, programmable, and open-source SDN platform for heterogeneous 5G RANs. The platform builds on an open protocol that abstracts the technology-dependent aspects of the radio access elements, allowing network programmers to deploy complex management tasks as policies on top of a programmable logically centralized controller. We implement the proposed solution as an extension to the 5G-EmPOWER platform and release the software stack (including the southbound protocol) under a permissive APACHE 2.0 license. Finally, the effectiveness of the platform is assessed through three reference use cases: 1) active network slicing;2) mobility management;and 3) load-balancing.

关键词： network management network programmability SDN 5G LTE open-source experimental evaluation

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Management of User Equipment Context as a Radio Access network Service 14

Management of User Equipment Context as a Radio Access Netwo...

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14th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)

作者： Pencheva, E. Atanasov, I Velkova, D. Trifonov, V Tech Univ Sofia Fac Telecommun Kliment Ohridski Blvd 8 Sofia 1756 Bulgaria

ISBN: (纸本)9781728108780

Virtualization and softwarization are key concepts in fifth generation (5G) system design. 5G core network adopts service-oriented architecture which provides agile and flexible platform for diverse use cases. The paper presents an approach to design Radio Access network (RAN) control plane functions as micro services. The approach improves the interoperability as core network service can interact with RAN services in uniform way The focus is on User Equipment Context Management procedures which are defined as a RESTful service.

关键词： 5G network programmability Radio Access network User Context Management control plane

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Economic Viability of Software Defined networking (SDN)

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COMPUTER networkS 2018年 135卷 81-95页

作者： Karakus, Murat Durresi, Arjan Indiana Univ Purdue Univ Dept Comp & Informat Sci Indianapolis IN 46202 USA

Economical and operational facets of networks drive the necessity for significant changes towards fundamentals of networking architectures. Recently, the momentum of programmable networking attempts illustrates the significance of economic aspects of network technologies. Software Defined networking (SDN) has got the attention of researchers from both academia and industry as a means to decrease network costs and generate revenue for service providers due to features it promises in networking. In this article, we investigate how programmable network architectures, i.e. SDN technology, affect the network economics compared to traditional network architectures, i.e. MPLS technology. We define two metrics, Unit Service Cost Scalability and Cost-to-Service, to evaluate how SDN architecture performs compared to MPLS architecture. Also, we present mathematical models to calculate certain cost parts of a network. In addition, we compare different popular SDN control plane models, Centralized Control Plane (CCP), Distributed Control Plane (DCP), and Hierarchical Control Plane (HCP), to understand the economic impact of them with regards to the defined metrics. We use video traffic with different patterns for the comparison. This work aims at being a useful primer to providing insights regarding which technology and control plane model are appropriate for a specific service, i.e. video, for network owners to plan their investments. (C) 2018 Elsevier B.V. All rights reserved.

关键词： SDN Economics network programmability Cost CAPEX OPEX

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