NET2- Network function virtualization and orchestration

Tuesday, 19 June 2018, 16:30-18:00, E2 hall
Session chair: Raul Munoz (Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Spain)


16:30 – Programmable and Flexible Management and Orchestration of Virtualized Network Functions

Hadi Razzaghi Kouchaksaraei, Sevil Dräxler, Manuel Peuster and Holger Karl (Paderborn University, Germany)
Supporting the vast variety of network services’ management and orchestration requirements is one of the main challenges that Network Function Virtualization (NFV) is dealing with. While general management requirements such as Virtual Network Function (VNF) resource requirements can be specified by the service developers using service descriptors, specific management operations like VNF-specific configuration cannot be performed by these descriptors. On the other hand, it is inefficient and also very challenging for Management and Orchestration (MANO) frameworks to provide all specific- management operations for every individual network service and their constituent VNFs. To mitigate this issue, we propose the use of service-specific programs called Specific Managers (SMs) that can customize management and orchestration of network services and also extend the capability of MANO frameworks to support per-service management and orchestration. The results of our evaluation show that the higher flexibility and programmability enabled by SMs improve service performance and also utilise the service provider resources more efficiently.



16:48 – A Pragmatic Approach of Determining Heavy-Hitter Traffic Thresholds

Sourav Maji, Xiaoyu Wang and Malathi Veeraraghavan (University of Virginia, USA); Jordi Ros-Giralt (Reservoir Labs, Inc., USA); Alan Commike (Reservoir Labs, USA)
Heavy-hitter flows or Cheetah Flows (CF), which are high-rate flows can result in increased packet losses and delay in general Internet traffic. A Cheetah Flow Traffic Engineering System (CFTES) is presented, which can dynamically compute a heavy-hitter or CF threshold using information from the general background traffic. The system works in conjunction with a Cheetah Flow Identification Network Function (CFINF) to detect CFs at high-link rates using an SDN controller for actions involving redirection of CFs to a lower priority scavenger queue.



17:06 – Policy Framework for the Next Generation Platform as a Service

Angelos Mimidis Kentis (DTU, Denmark); Eder Ollora Zaballa and Jose Soler (Technical University of Denmark, Denmark)
The Platform-as-a-Service (PaaS) model, allows service providers to build and deploy their services following streamlined work-flows. However platforms deployed through the PaaS model, can be very diverse in terms of technologies and involved subsystems (e.g. infrastructure, orchestration). Thus, the means for deploying and managing a service can significantly vary depending on the deployed platform. To address this issue, this paper proposes a policy-based framework designed for the Next Generation Platform-as-a-Service (NGPaaS). This framework allows service providers to define platform-wide and technology-agnostic policies to NGPaaS, by means of abstraction of the underlying platforms and the use of generic interfaces. The paper also presents a specific use case for the proposed framework, which targets network oriented policies.



17:24 – Enabling Vertical Industries Adoption of 5G Technologies: a Cartography of Evolving Solutions

Anastasios Zafeiropoulos (UBITECH & National Technical University of Athens, Greece); Panagiotis Gouvas (Ubitech, Greece); Eleni Fotopoulou and George Tsiolis (Ubitech Ltd, Greece); Thanos Xirofotos (UBITECH, Greece); Jose Bonnet (Altice Labs, Portugal); Gino Carrozzo (Nextworks s.r.l., Italy); Stamatia Rizou (Singular Logic, Greece); Anastasius Gavras and Maria Barros Weiss (Eurescom GmbH, Germany); Xavier Costa-Perez (NEC Laboratories Europe, Germany); Athul Prasad (Nokia Bell Labs, Finland); Marco Gramaglia (Universidad Carlos III de Madrid, Spain); Anna Tzanakaki and Dimitra Simeonidou (University of Bristol, United Kingdom (Great Britain)); John Cosmas (Brunel University, United Kingdom (Great Britain)); Mikael Fallgren (Ericsson Research, Sweden); Raul Muñoz (Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Spain); Ricard Vilalta (CTTC/CERCA, Spain)
5G network technologies are evolving in a tremendous pace, enhancing the potential for being adopted and exploited by vertical industries and serve advance networking requirements needs. Towards this direction, a set of 5G PPP projects are providing contributions for tackling aspects related to the overall lifecycle of 5G vertical applications design, development and deployment over 5G networks, including the activation and management of the appropriate network services. In this paper, a cartography of a set of novel solutions facilitating the adoption of 5G technologies by vertical industries is presented, aiming at identifying set of challenges and relevant solutions for tackling them as well as potential synergies among the related projects.



17:42 – BlueSPACE’s SDN/NFV Architecture for 5G SDM/WDM-enabled Fronthaul with Edge Computing

Raul Muñoz (Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Spain); Giada Landi (Nextworks, Italy); Ricard Vilalta (CTTC/CERCA, Spain); Josep M. Fabrega (Centre Tecnologic de Telecomunicacions de Catalunya, Spain); Marco Capitani (Nextworks, Italy); Laura Rogríguez (CTTC/CERCA, Spain); Ricardo Martinez and Ramon Casellas (Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Spain)
The BlueSPACE project proposes Spatial Division Multiplexing (SDM) as the key technology to overcome the capacity crunch that the conventional optical single-mode fibers (SMFs) are facing to accommodate the increasing bandwidth demands forecasted for 5G mobile communications in the fronthaul network. The combination of SDM with flexi-grid DWDM enables to exploit both dimensions (spectral and spatial resources) in combination with analog and digital Radio over Fiber (RoF) techniques. Additionally, BlueSPACE also considers the deployment of edge computing for MEC applications and VNFs. This paper presents the challenges and architectural solutions proposed to enhance the ETSI NFV MANO framework in order to meet the functionalities considered in BlueSPACE.