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  • 1.
    Chamania, Mohit
    et al.
    ADVA Optical Networking, Germany.
    Szyrkowiec, Thomas
    ADVA Optical Networking, Germany.
    Santuari, Michele
    CREATE-NET Research Center, Italy.
    Siracusa, Dominico
    CREATE-NET Research Center, Italy.
    Autenrieth, Achim
    ADVA Optical Networking, Germany.
    Lopez, Victor
    Telefónica I+D, Spain.
    Sköldström, Pontus
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Junique, Stephane
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Intent-based in-flight service encryption in multi-layer transport networks2017In: 2017 Optical Fiber Communications Conference and Exhibition, OFC 2017 - Proceedings, 2017Conference paper (Refereed)
    Abstract [en]

    We demonstrate multi-layer encrypted service provisioning via the ACINO orchestrator. ACINO combines a novel intent interface with an ONOS-based SDN orchestrator to facilitate encrypted services at IP, Ethernet and optical network layers.

  • 2.
    John, Wolfgang
    et al.
    Ericsson AB, Sweden.
    Marchetto, Guido
    Politecnico di Torino, Italy.
    Németh, Felician
    Budapest University of Technology and Economics, Hungary.
    Sköldström, Pontus
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Steinert, Rebecca
    RISE - Research Institutes of Sweden, ICT, SICS.
    Meirosu, Catalin
    Ericsson AB, Sweden.
    Papafili, Ioanna
    Hellenic Telecommunications Organization, Greece.
    Pentikousis, Kostas
    Travelping, Germany.
    Service provider DevOps2017In: IEEE Communications Magazine, ISSN 0163-6804, E-ISSN 1558-1896, Vol. 55, no 1, p. 204-211, article id 7823363Article in journal (Refereed)
    Abstract [en]

    Although there is consensus that software defined networking and network functions virtualization overhaul service provisioning and deployment, the community still lacks a definite answer on how carrier-grade operations praxis needs to evolve. This article presents what lies beyond the first evolutionary steps in network management, identifies the challenges in service verification, observability, and troubleshooting, and explains how to address them using our Service Provider DevOps (SP-DevOps) framework. We compendiously cover the entire process from design goals to tool realization and employ an elastic version of an industry-standard use case to show how on-the-fly verification, software-defined monitoring, and automated troubleshooting of services reduce the cost of fault management actions. We assess SP-DevOps with respect to key attributes of software-defined telecommunication infrastructures both qualitatively and quantitatively, and demonstrate that SP-DevOps paves the way toward carrier-grade operations and management in the network virtualization era.

  • 3.
    John, Wolfgang
    et al.
    Ericsson Research, Sweden.
    Meirosu, Catalin
    Ericsson Research, Sweden.
    Pechenot, Bertrand
    RISE, Swedish ICT, Acreo.
    Sköldström, Pontus
    RISE, Swedish ICT, Acreo.
    Kreuger, Per
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Steinert, Rebecca
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Scalable Software Defined Monitoring for Service Provider DevOps2015In: 2015 Fourth European Workshop on Software Defined Networks, 2015, 11, p. 61-66, article id 7313617Conference paper (Refereed)
    Abstract [en]

    Technology trends such as Cloud, SDN, and NFV are transforming the telecommunications business, promising higher service flexibility and faster deployment times. They also allow for increased programmability of the infrastructure layers. We propose to split selected monitoring control functionality onto node-local control planes, thereby taking advantage of processing capabilities on programmable nodes. Our software defined monitoring approach provides telecom operators with a way to handle the trade off between high-granular monitoring information versus network and computation loads at central control and management layers. To illustrate the concept, a link rate monitoring function is implemented using node-local control plane components. Furthermore, we introduce a messaging bus for simple and flexible communication between monitoring function components as well as control and management systems. We investigate scalability gains with a numerical analysis, demonstrating that our approach would generate thousand fold less monitoring traffic while providing similar information granularity as a naive SNMP implementation or an Open Flow approach.

  • 4.
    John, Wolfgang
    et al.
    Ericsson Research, Sweden.
    Moradi, Fernaz
    Ericsson Research, Sweden.
    Pechenot, Bertrand
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Sköldström, Pontus
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Meeting the observability challenges for VNFs in 5G systems2017In: Proceedings of the IM 2017 - 2017 IFIP/IEEE International Symposium on Integrated Network and Service Management, 2017, p. 1127-1130Conference paper (Refereed)
    Abstract [en]

    5G mobile communication systems will need to accommodate a variety of use-cases, resulting in a diverse set of requirements. To meet these requirements, 5G systems take advantage of modern virtualization possibilities offered by Network Function Virtualization (NFV), enabling deployment agility and dynamicity of virtualized network functions. With the transformation of telecom towards virtualized environments, advanced observability possibilities gain increasing importance as one of the essential prerequisites, especially for successful DevOps operations. However, deployment agility also puts specific requirements on monitoring solutions in order to adapt automatically and continuously to frequent changes in service deployments. In this short-paper, we establish and discuss essential properties of observability systems for virtual network functions in a 5G context. We take these properties as guiding design principles for our software-defined monitoring framework and outline how to evolve our existing components towards a flexible, scalable, and programmable observability solution for microservice-based NFV with features for increased manageability.

  • 5.
    Kothandaraman, Babu
    et al.
    KTH Royal Institute of Technology, Sweden.
    Du, Manxing
    RISE, Swedish ICT, Acreo.
    Sköldstrom, Pontus
    RISE, Swedish ICT, Acreo.
    Centrally controlled distributed VNF state management2015In: Proceedings of the 2015 ACM SIGCOMM Workshop on Hot Topics in Middleboxes and Network Function Virtualization (HotMiddlebox '15), 2015, p. 37-42Conference paper (Refereed)
    Abstract [en]

    The realization of increased service flexibility and scalability through the combination of Virtual Network Functions (VNF) and Software Defined Networks (SDN) requires careful management of both VNF and forwarding state. Without coordination, service scalability comes at a high cost due to unacceptable levels of packet loss, reordering and increased latencies. Previously developed techniques has shown that these issues can be managed, at least in scenarios with low traffic rates and optimistic control plane latencies. In this paper we extend previous work on coordinated state management in order to remove performance bottlenecks, this is done through distributed state management and minimizing control plane interactions. Evaluation of our changes show substantial performance gains using a distributed approach while maintaining centralized control.

  • 6.
    Lopez, Victor
    et al.
    Telefónica I+D/GCTO, Spain.
    Gran, Jose
    Telefónica I+D/GCTO, Spain.
    Jimenez, Rodrigo
    Telefónica I+D/GCTO, Spain.
    Fernandez-Palacios, Juan
    Telefónica I+D/GCTO, Spain.
    Siracusa, Domenico
    CREATE-NET, Italy.
    Pederzolli, Frederico
    CREATE-NET, Italy.
    Gerstel, Ori
    Sedona Systems, Israel.
    Shikhmanter, Yona
    Sedona Systems, Israel.
    Mårtensson, Jonas
    RISE, Swedish ICT, Acreo.
    Sköldström, Pontus
    RISE, Swedish ICT, Acreo.
    Szyrkowiec, Thomas
    ADVA, Germany.
    Chamania, Mohit
    ADVA, Germany.
    Autenrieth, Achim
    ADVA, Germany.
    Tomkos, Ioannis
    Athens Information Technology, Greece.
    Klonidis, Dimitrios
    Athens Information Technology, Greece.
    The role of SDN in application centric IP and optical networks2016In: Journal of green engineering, ISSN 1904-4720, E-ISSN 2245-4586, Vol. 6, no 3, p. 317-336Article in journal (Refereed)
    Abstract [en]

    Transport IP/optical networks are evolving in capacity and dynamicity of configuration. This evolution gives little to no attention to the specific needs of applications, beyond increasing raw capacity. TheACINO concept is based on allowing applications to explicitly specify requirements for requested services in terms of high-level (technology- and configuration-agnostic) requirements such as maximum latency or reliability. These requirements are described using intents and certain primitives which facilitate translation to technology specific configuration within the ACINO infrastructure. To support this application centric approach, SDN has a key role in this evolution. There are representative use cases where SDN gives an added value when considering not only the network but also the application layer.

  • 7.
    Lopez, Victor
    et al.
    Telefónica I+D/GCTO, Spain.
    Gran, Jose Manuel
    Telefónica I+D/GCTO, Spain.
    Fernandez-Palacios, Juan Pedro
    Telefónica I+D/GCTO, Spain.
    Siracusa, Domenico
    CREATE-NET, Italy.
    Pederzolli, Federico
    CREATE-NET, Italy.
    Gerstel, Ori
    Sedona Systems, Israel.
    Shikhmanter, Yona
    Sedona Systems, Israel.
    Mårtensson, Jonas
    RISE, Swedish ICT, Acreo.
    Sköldström, Pontus
    RISE, Swedish ICT, Acreo.
    Szyrkowiec, Thomas
    ADVA Optical Networking, Germany.
    Chamania, Mohit
    ADVA Optical Networking, Germany.
    Autenrieth, Achim
    ADVA Optical Networking, Germany.
    Tomkos, Ioannis
    AIT Athens Information Technology, Greece.
    Klonidis, Dimitrios
    AIT Athens Information Technology, Greece.
    The role of SDN in Application Centric IP and Optical Networks2016In: 2016 European Conference on Networks and Communications (EuCNC), IEEE, 2016, p. 138-142, article id 7561020Conference paper (Refereed)
    Abstract [en]

    Transport IP/optical networks are evolving in capacity and dynamicity configuration. This evolution gives little to no attention to the specific needs of applications, beyond raw capacity. The ACINO concept is based on facilitating applications to explicitly specify requirements for requested services in terms of high-level (technology agnostic) requirements such as maximum latency or reliability. These requirements are described using intents and certain primitives which facilitate translation to technology specific configuration within the ACINO infrastructure. To support this application centric approach, SDN must have a key role in this evolution. There are representative use cases where SDN gives an added value when considering not only the network but also the application layer.

  • 8.
    Marsico, Antonio
    et al.
    FBK CREATE-NET, Italy.
    Chamania, Mohit
    ADVA Optical Networking, Germany.
    Doriguzzi-Corin, Roberto
    FBK CREATE-NET, Italy.
    Matrakidis, Chris
    Athens Information Technology, Greece.
    Klonidis, Dimitios
    Athens Information Technology, Greece.
    Sköldström, Pontus
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Ghafoor, Abdiul
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Junique, Stephane
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Lopez, Victor
    Telefònica, Spain.
    Siracusa, Domenico
    FBK CREATE-NET, Italy.
    Enriching intent-based SDN to ease customer service management in transport networks2018In:  Find other works by these authors Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF) OSA Technical Digest (online) (Optical Society of America, 2018), paper NeW2F.2, 2018Conference paper (Refereed)
    Abstract [en]

    Intent-based Software-Defined Networking can automate mapping of customer services to transport services. We demonstrate this using a multi-layer orchestrator that provisions a complex customer service over an IP/Optical testbed.

  • 9.
    Marsico, Antonio
    et al.
    FBK CREATE-NET, Italy.
    Santuari, Michele
    FBK CREATE-NET, Italy.
    Savi, Marco
    FBK CREATE-NET, Italy.
    Siracusa, Domenico
    FBK CREATE-NET, Italy.
    Ghafoor, Abdul
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Junique, Stephane
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Sköldström, Pontus
    RISE - Research Institutes of Sweden, ICT, Acreo.
    An interactive intent-based negotiation scheme for application-centric networks2017In: 2017 IEEE Conference on Network Softwarization: Softwarization Sustaining a Hyper-Connected World: en Route to 5G, NetSoft 2017, 2017Conference paper (Refereed)
    Abstract [en]

    The demonstration presents the first implementation of a resource negotiation scheme between users and a network for the provisioning of application-aware connectivity services. This active interaction enables the users, who request connectivity services with multiple application requirements, to select an alternative solution when the network does not have enough resources to satisfy the original requests.

  • 10.
    Matias, Jon
    et al.
    University of the Basque Country, Spain.
    Garay, Jokin
    University of the Basque Country, Spain.
    Jacob, Eduardo
    University of the Basque Country, Spain.
    Sköldström, Pontus
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Ghafoor, Abdul
    RISE - Research Institutes of Sweden, ICT, Acreo.
    FlowSNAC: Improving FlowNAC with secure scaling and resiliency2016In: 2016 Fifth European Workshop on Software-Defined Networks (EWSDN), 2016, p. 59-61, article id 7956055Conference paper (Refereed)
    Abstract [en]

    Life-cycle management of stateful VNF services is a complicated task, especially when automated resiliency and scaling should be handled in a secure manner, without service degradation. We present FlowSNAC, a resilient and scalable VNF service for user authentication and service deployment. FlowSNAC consists of both stateful and stateless components, some of that are SDN-based and others that are NFVs. We describe how it adapts to changing conditions by automatically updating resource allocations through a series of intermediate steps of traffic steering, resource allocation, and secure state transfer. We conclude by highlighting some of the lessons learned during implementation, and their wider consequences for the architecture of SDN/NFV management and orchestration systems.

  • 11.
    Nemeth, Felician
    et al.
    MTA-BME Information Systems Research Group, Hungary.
    Steinert, Rebecca
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Kreuger, Per
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Sköldström, Pontus
    Roles of DevOps tools in an automated, dynamic service creation architecture2015In: 2015 IFIP/IEEE International Symposium on Integrated Network Management (IM), 2015, 11, p. 1153-1154, article id 7140455Conference paper (Refereed)
    Abstract [en]

    Software Defined Networking (SDN) and Network Functions Virtualization facilitate, with their advanced pro- grammability features, the design of automated dynamic service creation platforms. Applying DevOps principles to service design can further reduce service creation times and support continuous operation. Monitoring, troubleshooting, and other DevOps tools can have different roles within virtualised networks, depending on virtualization level, type of instantiation, and user intent. We have implemented and integrated four key DevOps tools that are useful in their own right, but showcase also an integrated scenario, where they form the basis for a more complete and realistic DevOps toolkit. The current set of tools include a message bus, a rudimentary configuration tool, a probabilistic congestion detector, and a watchpoint mechanism. The demo also presents potential roles and use-cases for the tools.

  • 12.
    Pederzolli, Federico
    et al.
    CREATE-NET, Italy.
    Siracusa, Domenico
    CREATE-NET, Italy.
    Sköldström, Pontus
    RISE, Swedish ICT, Acreo.
    Junique, Stephane
    RISE, Swedish ICT, Acreo.
    Rožić, Ćiril
    AIT Athens Information Technology, Greece.
    Klonidis, Dimitrios
    AIT Athens Information Technology, Greece.
    Szyrkowiec, Thomas
    ADVA Optical Networking, Germany.
    Chamania, Mohit
    ADVA Optical Networking, Germany.
    Uceda, Victor
    Telefónica I+D/GCTO, Spain.
    Lopez, Victor
    Telefónica I+D/GCTO, Spain.
    Shikhmanter, Yona
    Sedona Systems, Israel.
    Gerstel, Ori
    Sedona Systems, Israel.
    SDN application-centric orchestration for multi-layer transport networks2016In: 2016 18th International Conference on Transparent Optical Networks (ICTON), 2016Conference paper (Refereed)
    Abstract [en]

    Modern IP/Optical transport networks are seldom jointly operated and optimized, and do not cater to the usually implicit requirements of applications, which ultimately drive network traffic. In this concept paper we propose a Software Defined Networking (SDN) based Network Orchestrator to manage multi-layer transport networks while taking explicit application requirements into account. We discuss its architecture and requirements, an interface to allow applications to explicitly specify their requirements in a network-agnostic manner, and possible strategies to optimize the network taking these requirements into account.

  • 13.
    Sahhaf, Sahel
    et al.
    Ghent University, Belgium.
    Tavernier, Wouter
    Ghent University, Belgium.
    Czentye, János
    Budapest University of Technology and Economics, Hungary.
    Sonkoly, Balázs
    Budapest University of Technology and Economics, Hungary.
    Sköldstrom, Pontus
    RISE, Swedish ICT, Acreo.
    Jocha, Dávid
    Ericsson Research, Hungary.
    Garay, Jokin
    University of the Basque Country, Spain.
    Scalable Architecture for Service Function Chain Orchestration2015In: 2015 Fourth European Workshop on Software Defined Networks, 2015, p. 19-24, article id 7313590Conference paper (Refereed)
    Abstract [en]

    Network Function Virtualization (NFV) enables to implement network functions in software, high-speed packet processing functions which traditionally are dominated by hardware implementations. Virtualized Network Functions (NFs) may be deployed on generic-purpose servers, e.g., in datacenters. The latter enables flexibility and scalability which previously were only possible for web services deployed on cloud platforms. The merit of NFV is challenged by control challenges related to the selection of NF implementations, discovery and reservation of sufficient network and server resources, and interconnecting both in a way which ful fills SLAs related to reliability and scalability. This paper details the role of a scalable orchestrator in charge of finding and reserving adequate resources. The latter will steer network and cloud control and management platforms to actually reserve and deploy requested services. We highlight the role of involved interfaces, propose elements of algorithmic components, and will identify major blocks in orchestration time in a proof of concept prototype which accounts for most functional parts in the considered architecture. Based on these evaluations, we propose several architectural enhancements in order to implement a highly scalable network orchestrator for carrier and cloud networks.

  • 14.
    Sköldstrom, Pontus
    et al.
    RISE, Swedish ICT, Acreo.
    Junique, Stéphane
    RISE, Swedish ICT, Acreo.
    Application-centric networks and the future 5G transport2015In: 2015 17th International Conference on Transparent Optical Networks (ICTON), 2015Conference paper (Refereed)
    Abstract [en]

    In this paper we present the Application-centric IP/Optical network concept pursued by the H2020 project ACINO, and how it could be applied as a future 5G transport network. While 5G concepts are still maturing we investigate the envisioned capabilities of a 5G network, the use-cases and the requirements different applications would have on a wired transport network for 5G. Our conclusion is that ACINO could fulfil the bandwidth, low-latency, security, and reliability requirements, in a way that differentiates between different 5G services.

  • 15.
    Sköldstrom, Pontus
    et al.
    RISE, Swedish ICT, Acreo.
    Sonkoly, B.
    Gulyas, A.
    Nemeth, F.
    Kind, M.
    Westphal, F. -J
    John, W.
    Garay, J.
    Jacob, E.
    Jocha, D.
    Elek, J.
    Szabo, R.
    Tavernier, W.
    Agapiou, G.
    Manzalini, A.
    Rost, M.
    Sarrar, N.
    Schmid, S.
    Towards unified programmability of cloud and carrier infrastructure2014In: Proceedings - 2014 3rd European Workshop on Software-Defined Networks, EWSDN 2014, 2014, p. 55-60Conference paper (Refereed)
    Abstract [en]

    The rise of cloud services poses considerable challenges on the control of both cloud and carrier network infrastructures. While traditional telecom network services rely on rather static processes (often involving manual steps), the wide adoption of mobile devices including tablets, smartphones and wearables introduce previously unseen dynamics in the creation, scaling and withdrawal of new services. These phenomena require optimal flexibility in the characterization of services, as well as on the control and orchestration of both carrier and cloud infrastructure. This paper proposes a unified programmability framework addressing: the unification of network and cloud resources, the integrated control and management of cloud and network, the description for programming networked/cloud services, and the provisioning processes of these services. In addition proofs-of-concept are provided based on existing open source control software components. © 2014 IEEE.

  • 16.
    Sköldström, Pontus
    et al.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Junique, Stephane
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Ghafoor, Abdul
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Marsico, Antonio
    FBK CREATE-NET, Italy.
    Siracusa, Domenico
    FBK CREATE-NET, Italy.
    DISMI - An intent interface for application-centric transport network services2017In: International Conference on Transparent Optical Networks, 2017Conference paper (Refereed)
    Abstract [en]

    Application-centric networking is a novel approach to construct transport networks that allows application-specific requirements to be taken into account through the entire service provisioning process: the service offered to each application is differentiated at each layer of the transport network, from IP to optical. This approach replaces the grooming of traffic with different requirements into a shared path in the transport layer, and allows for a finer control and utilization of network resources by network operators. To make this concept viable, an interface for requesting a connectivity service by applications requires an abstraction with respect to the various underlying network technologies. Interfaces based on the concept of Intents provide such an abstraction: applications can describe what they need from the network (their requirements) rather than how to achieve them. This paper describes the design and implementation of the solution we propose: DISMI, the Intent-based North-Bound Interface of a network controller.

  • 17.
    Sköldström, Pontus
    et al.
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Rozic, Ciril
    Athens Information Technology, Greece.
    Pedreno-Manresa, Juan Jose
    Universidad Politécnica de Cartagena, Spain.
    Making powerful friends: Introducing ONOS and Net2Plan to each other2017In: International Conference on Transparent Optical Networks, 2017Conference paper (Refereed)
    Abstract [en]

    In this paper, we present our efforts for integrating network control and network planning, connecting the popular open-source ONOS control platform with Net2Plan, an open source network planner. The integration allows ONOS to use Net2Plan, combined with our resource allocation framework, as an on-line network optimization tool, calculating and re-routing paths as new requests arrive. It also lets Net2Plan obtain an up-to-date topology from ONOS. Net2Plan can then use the topology and our algorithms to perform planning operations such as investigating hypothetical questions about consequences of network failures or additional network equipment. The interface also lets the paths computed by the algorithms running on Net2Plan to be transferred to ONOS and implemented in the running network. While we currently only support IP/Optical networks, additional layers could easily be incorporated. As an interesting side-effect, code used for network simulation can be instrumented and applied to the real network.

  • 18.
    Soenen, Thomas
    et al.
    UGent - iMinds, Belgium.
    Sahhaf, Sael
    UGent - iMinds, Belgium.
    Tavernier, Wouter
    UGent - iMinds, Belgium.
    Sköldström, Pontus
    Colle, Didier
    UGent - iMinds, Belgium.
    Pickavet, Marco
    UGent - iMinds, Belgium.
    A model to select the right infrastructure abstraction for Service Function Chaining2017In: 2016 IEEE Conference on Network Function Virtualization and Software Defined Networks, NFV-SDN 2016, 2017, p. 233-239Conference paper (Refereed)
    Abstract [en]

    Through network function virtualization (NFV), telecom providers aim to flexibly re-use generic-purpose hardware to provide services on-demand and in an agile way. Service function chaining is becoming the preferred model to describe the characteristics of the packet-processing network functions which, together, form these services. NFV allows for network function embedding freedom, creating new dynamics between providers and the users requesting services. Users want this freedom to optimise the performance of their requested services, while providers aim to optimise their resource cost with it. This trade-off is heavily influenced by how the available infrastructure is exposed to the users. In this paper, we present an infrastructure abstraction model for network, compute and storage resources that exposes the infrastructure in an abstracted manner. We use this abstraction to propose a solution for the placement freedom trade-off problem by studying its relation with metrics that capture both the user's and the provider's aspects. We conclude with a heuristic that determines the right abstraction for particular scenarios.

  • 19.
    Tomkos, Ioannis
    et al.
    Athens Information Technology, Greece.
    Rozic, Ciril
    Athens Information Technology, Greece.
    Savi, Marco
    FBK-CREATE-NET, Italy.
    Sköldström, Pontus
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Lopez, Victor
    Telefonica I+D/GCTO, Spain.
    Chamania, Mohit
    ADVA Optical Networking, Germany.
    Siracusa, Domenico
    FBK-CREATE-NET, Italy.
    Matrakidis, Chris
    Athens Information Technology, Greece.
    Klonidis, Dimitrios
    Athens Information Technology, Greece.
    Gerstel, Ori
    Sedona Systems, Israel.
    Application Aware Multilayer Control and Optimization of Elastic WDM Switched Optical Networks2018In: 2018 Optical Fiber Communications Conference and Exposition (OFC), 2018, p. 1-3Conference paper (Refereed)
    Abstract [en]

    In dynamic networks with diverse application requirements, Software Defined Networking (SDN) principles enable application-aware in-operation planning. Project ACINO built a network orchestrator as the connecting component between network applications and the underlying network infrastructure.

  • 20.
    Van Rossem, Steven
    et al.
    Ghent University, Belgium.
    Cai, Xuejun
    Ericsson Research, Sweden.
    Cerrato, Ivano
    Politecnico di Torino, Italy.
    Danielsson, Per
    RISE - Research Institutes of Sweden, ICT, SICS.
    Németh, Feliciano
    Budapest University of Technology and Economics, Hungary.
    Pechenot, Bertrand
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Pelle, Istvan
    Ghent University, Belgium.
    Risso, Fulvio
    Politecnico di Torino, Italy.
    Sharma, Sachin
    Ghent University, Belgium.
    Sköldström, Pontus
    RISE - Research Institutes of Sweden, ICT, Acreo.
    John, Wolfgang
    Ericsson Research, Sweden.
    NFV service dynamicity with a DevOps approach: Insights from a use-case realization2017In: Proceedings of the IM 2017 - 2017 IFIP/IEEE International Symposium on Integrated Network and Service Management, 2017, p. 674-679Conference paper (Refereed)
    Abstract [en]

    This experience paper describes the process of leveraging the NFV orchestration platform built in the EU FP7 project UNIFY to deploy a dynamic network service exemplified by an elastic router. Elasticity is realized by scaling dataplane resources as a function of traffic load. To achieve this, the service includes a custom scaling logic and monitoring capabilities. An automated monitoring framework not only triggers elastic scaling, but also a troubleshooting process which detects and analyzes anomalies, pro-actively aiding both dev and ops personnel. Such a DevOps-inspired approach enables a shorter update cycle to the running service. We highlight multiple learnings yielded throughout the prototype realization, focussing on the functional areas of service decomposition and scaling; programmable monitoring; and automated troubleshooting. Such practical insights will contribute to solving challenges such as agile deployment and efficient resource usage in future NFV platforms.

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