B5GEMINI: AI-driven Network Digital Twin

  • Alberto Mozo
  • Amit Karamchandani
  • Sandra Gómez-Canaval
  • Mario Sanz
  • José Ignacio Moreno
  • Antonio Pastor
Sensors 2022, 22, 4106

End-to-End Network Slice Stitching using Blockchain-based Peer-to-Peer Network Slice Managers and Transport SDN Controllers

  • Pol Alemany
  • Ricard Vilalta
  • Raul Muñoz
  • Ramon Casellas and
  • Ricardo Martínez
2021 Optical Fiber Communications Conference and Exhibition (OFC)
This paper presents and experimentally validates a Blockchain-based architecture to manage End-to-End Network Slice Deployment by stitching Network Slice Subnets in edge/cloud computing domains connected through packet/optical transport networks domains managed by different operators.

Synthetic flow-based cryptomining attack generation through Generative Adversarial Networks

  • Alberto Mozo
  • Ángel González-Prieto
  • Antonio Pastor
  • Sandra Gómez-Canaval
  • Edgar Talavera
Scientific Reports volume 12, Article number: 2091 (2022)

Experimental Demonstration of End-to-end NFV Orchestration on Top of the ADRENALINE Testbed

  • Lluis Gifre
  • Carlos Manso
  • Ramon Casellas
  • Ricardo Martine
  • Ricard Vilalta
  • Raul Muñoz
IEEE International Conference on Network Softwarization (NetSoft2022)

QoS-Aware Inter-Domain Connectivity: Control Plane Design and Operational Considerations

  • Stanislav Lange
  • Jane Frances Pajo
  • Thomas Zinner
  • Håkon Lønsethagen
  • Min Xie
IFIP/IEEE FlexNGIA Workshop 2022
Abstract: Scenarios related to 5G and beyond give rise to a high degree of heterogeneity in terms of applications, services, and user expectations as well as more demanding QoS requirements with an end-to-end scope that can cover multiple operator domains.

Demo Track Paper: Demonstrating QoE-aware 5G Network Slicing Emulated with HTB in OMNeT++

  • Marija Gajic
  • Marcin Bosk
  • Susanna Schwarzmann
  • Stanislav Lange
  • Thomas Zinner
IEEE International Conference on Computer Communications 2022

Evaluation of the abstraction of optical topology models in blockchain-based data center interconnection

  • Pol Alemany
  • Ricard Vilalta
  • Raul Munoz
  • Ramon Casellas
  • Ricardo Martinez
Journal of Optical Communications and Networking (Volume: 14, Issue: 4, April 2022)
Data center (DC) interconnection allows us to have optical transmissions between DCs directly connected to optical networks, avoiding the use of a packet-based infrastructure.

Demonstration of Zero-touch Device and L3-VPN Service Management using the TeraFlow Cloud-native SDN Controller

  • Ll. Gifre
  • C. Natalino
  • S. Gonzalez-Diaz
  • F. Soldatos
  • S. Barguil
  • C. Aslanoglou
  • F. J. Moreno-Muro
  • A. N. Quispe Cornelio
  • L. Cepeda, R. Martinez
  • C. Manso
  • V. Apostolopoulos
  • S. Petteri Valiviita
  • O. Gonzalez de Dios
  • J. Rodriguez
  • R. Casellas
  • P. Monti
  • G. P. Katsikas
  • R. Munoz
  • R. Vilalta
The Optical Networking and Communication Conference & Exhibition - OFC2022

Architecture to Deploy and Operate a Digital Twin Optical Network

  • R. Vilalta
  • R. Casellas
  • Ll. Gifre
  • R. Muñoz
  • R. Martínez
  • A. Pastor
  • D. Lopez
  • J.P. Fernandez-Palacios
The Optical Networking and Communication Conference & Exhibition - OFC2022

Microservice-Based Unsupervised Anomaly Detection Loop for Optical Networks

  • Carlos Natalino
  • Carlos Manso
  • Lluis Gifre
  • Raul Muñoz
  • Ricard Vilalta
  • Marija Furdek
  • Paolo Monti
The Optical Networking and Communication Conference & Exhibition - OFC2022

Dynamic Reconfiguration of WDM Virtual Network Topology over SDM Networks for Spatial Channel Failure Recovery with gRPC Telemetry

  • Raul Munoz
  • Carlos Manso
  • Filippos Balasis
  • Ramon Casellas
  • Ricard Vilalta
  • Cen Wang
  • Noboru Yoshikane
  • Takehiro Tsuritani
  • Itsuro Morita
The Optical Networking and Communication Conference & Exhibition - OFC22

SDN Control Architectures for WDM over SDM (WDMoSDM) Networks

  • R. Muñoz
  • N. Yoshikane
  • C. Manso
  • R. Casellas
  • R. Vilalta
  • R. Martínez
  • F. Balasis
  • C. Wang
  • T. Tsuritani
  • I. Morita
Proceedings of Photonics in Switching and Computing Conference, 27 - 29 September 2021, virtual event.
We provide an overview of SDN control architectures for WDM over SDM (WDMoSDM) optical networks. We address dynamic management of end-to-end connec- tivity services and WDM virtual network topologies (VNTs) for partially disaggregated multi-domain WDMoSDM networks.

HTBQueue: A Hierarchical Token Bucket Implementation for the OMNeT++/INET Framework

  • Marcin Bosk
  • Marija Gajic
  • Susanna Schwarzmann
  • Stanislav Lange
  • Thomas Zinner
8th OMNET++ community summit, 2021
The hierarchical token bucket (HTB) algorithm allows to specify per-flow bitrate guarantees and enables excess bandwidth sharing between flows of the same class. Additionally, it provides capabilities to prioritize the traffic of specific flows, potentially considering their delay demands.

Role of monitoring and analytics in next-generation optical networks

  • Lluis Gifre Renom
  • Fabien Boitier
2021 European Conference on Optical Communication (ECOC)
We study the requirements that Control, Orchestration, and Management (COM) systems for optical networks should fulfil, present a minimal set of components they should implement, and propose our research point of view regarding the future needs for COM systems for optical networks.

Advances in SDN control for Beyond 100G disaggregated optical networks

  • Ramon Casellas
  • Ricardo Martínez
  • Ricard Vilalta
  • Raúl Muñoz
  • Alfredo González-Muñiz
  • Oscar González de Dios
  • Juan Pedro Fernández-Palacios
2021 European Conference on Optical Communication (ECOC)
This tutorial considers the evolution of SDN control for optical transport networks in disaggregated scenarios, focusing on its requirements and challenges when applied to "beyond 100G" networks - term that jointly refers to the use of coherent technology, data rates beyond 100G and the evolution

Demo paper: Scalable and Resilient Network Traffic Engineering Using Erlang-based Path Computation Element

  • Sebastien Merle
  • Juan Pedro Fernández-Palacios
  • Oscar González de Dios
  • Lluís Gifre
  • Ricard Vilalta
  • Peer Stritzinger
VII IEEE Conference on Network Function Virtualization and Software Defined Networks (IEEE NFV-SDN 2021)

Using 5G QoS Mechanisms to Achieve QoE-Aware Resource Allocation

  • Marcin Bosk
  • Marija Gajić
  • Susanna Schwarzmann
  • Stanislav Lange
  • Riccardo Trivisonno
  • Clarissa Cassales Marquezan
  • Thomas Zinner
17th International Conference on Network and Service Management
Abstract: Network operators generally aim at providing a good level of satisfaction to their customers. Diverse application demands require the usage of beyond best-effort resource allocation mechanisms, particularly in resource-constrained environments.

Packet Optical Transport Network Slicing with Hard and Soft Isolation

  • Samier Barguil
  • Victor Lopez Alvarez
  • Luis Miguel Contreras Murillo
  • Oscar Gonzalez de Dios
  • Alejandro Alcala Alvarez
  • Carlos Manso
  • Pol Alemany
  • Ramon Casellas
  • Ricardo Martinez
  • David Gonzalez-Perez
  • Xufeng Liu
  • Jose-Miguel Pulido
  • Juan Pedro Fernandez-Palacios
  • Raul Muñoz
  • Ricard Vilalta
Applied Sciences 2021, 11(13), 6219
Network operators have been dealing with the necessity of a dynamic network resources allocation to provide a new generation of customer-tailored applications.

First Demonstration of Dynamic Deployment of SDN-enabled WDM Virtual Network Topologies (VNTs) over SDM networks

  • Carlos Manso
  • Raul Muñoz
  • Filippos Balasis
  • Ricard Vilalta
  • Ramon Casellas
  • Ricardo Martínez
  • Cen Wang
  • Noboru Yoshikane
  • Itsuro Morita
  • Takehiro Tsuritani
2021 European Conference on Optical Communication (ECOC)
We present the dynamic deployment of logical WDM VNTs by deploying virtual links between ROADM/OXC nodes using spatial channels provided by SDM networks.

Scalable Physical Layer Security Components for Microservice-Based Optical SDN Controllers

  • Natalino, Carlos
  • Manso, Carlos
  • Vilalta, Ricard
  • Monti, Paolo
  • Munoz, Raul
  • Furdek, Marija
2021 European Conference on Optical Communication (ECOC)
We propose and demonstrate a set of microservice-based security components able to perform physical layer security assessment and mitigation in optical networks. Results illustrate the scalability of the attack detection mechanism and the agility in mitigating attacks.

Optical Network Telemetry with Streaming Mechanisms using Transport API and Kafka

  • Ricard Vilalta
  • Ramon Casellas
  • Ricardo Martinez
  • Raul Muñoz
  • Alfredo González-Muñiz
  • Juan Pedro Fernández-Palacios
2021 European Conference on Optical Communication (ECOC)
We present a streaming mechanism for optical networks based on the Kafka architecture and protocols, to efficiently distribute state and network updates following the upcoming ONF Transport API streaming implementation agreement.

Workshop paper: “From 5G to 6G Automated and Intelligent SecuriTy: FAST. Cloud-Scale SDN Network Security in TeraFlow”

  • Alberto Mozo
  • Antonio Pastor
  • Carlos Natalino
  • Marija Furdek
  • Rahul Bobba
  • Raul Muñoz
  • Ramon Casellas
  • Ricardo Martinez ecomunicacions de Catalunya
  • Juan Pedro Fernández-Palacios
  • Ricard Vilalta
  • Stanislav Vakaruk
European Conference on Networks and Communications & 6G Summit (EuCNC 2021)
TeraFlow proposes a new type of secure, cloudnative Software Defined Networking controller that will radically advance the state-of-the-art in beyond 5G networks by introducing novel micro-services architecture and providing revolutionary features for flow management and optical/microwave network

Special session paper: “Autonomous Network Management towards 6G. Cloud-Native SDN Network Management for Beyond 5G Networks with TeraFlow”

  • Ricard Vilalta
  • Raul Munoz
  • Ramon Casellas
  • Ricardo Martínez
  • Juan-Pedro Fernandez-Palacios
  • Georgios P. Katsikas
  • Thomas Zinner
  • Harald Øverby
  • Sergio Gonzalez-Diaz
  • Hakon Lønsethagenk
  • Jose-Miguel Pulido
  • Daniel King
  • Nicola Carapellese
European Conference on Networks and Communications & 6G Summit (EuCNC 2021)
TeraFlow proposes a novel secured transport Software Defined Networking (SDN) controller based on a microservice architecture. The objective is to foster innovation around SDN controller and evolve them to be suitable for beyond 5G networks.

Field Trial of Programmable L3 VPN Service Deployment Using SDN-Based Multi-domain Service Provisioning over IP/Optical Networks

  • Samier Barguil
  • Victor Lopez
  • Cristyan Manta-Caro
  • Arturo Mayoral Lopez De Lerma
  • Oscar Gonzalez De Dios
  • Edward Echeverry
  • Juan Pedro Fernandez-Palacios
  • Janne Karvonen
  • Jutta Kemppainen
  • Natalia Maya
  • Ricard Vilalta
IEEE Network, Volume: 35, Issue: 6, November/December 2021
Network operators cannot change their footprint to upgrade the entire network to support SDN from scratch. Hence, network operators adapted the original SDN concept into a hybrid SDN approach to have a pragmatic, evolutionary, and economically viable solution.

Demo paper: “Scalable for Cloud-native Transport SDN Controller Using GNPy and Machine Learning techniques for QoT estimation”

  • Carlos Manso
  • Ricard Vilalta
  • Raul Muñoz
  • Ramon Casellas
  • Ricardo Martínez
2021 Optical Fiber Communications Conference and Exhibition (OFC)
This demo shows a cloud-native SDN controller that can estimate end-to-end QoT using both analytical (GNPy) and machine learning algorithms on WDM systems. This transport SDN controller is able to scale horizontally using custom metrics.