Demo paper: “Demonstration of a Scalable and Efficient Pipeline for ML-based Optical Monitoring”
Conference: OFC 2023, San Diego, USA
We demonstrate a scalable processing of OPM data using ML to detect anomalies in optical services at run time. A dashboard will show operational SDN controller metrics, raw OPM data, and the ML assessment result.
Intent-Driven Management for Multi-Vertical End-to-End Network Slicing Services
2022 IEEE Globecom Workshops (GC Wkshps)
Moving forward from 5G to 6G, one critical open challenge is customer-driven and autonomous networks management. To enable autonomy in a large-scale, it is important to separate the customer-centric requirements from the detailed network-and resource-centric operations.
P4-based Telemetry Processing for Fast Soft Failure Recovery in Packet-Optical Networks
OFC 2023, San Diego, USA
A novel framework for in-network P4 processing of distributed telemetry data is presented, enabling effective soft failure detection and recovery strategies enforced in just few microseconds.
Dynamic bypass of wavelength switching in SDN-enabled WDM VNTs over SDM Networks with high bit-rate optical channels
OFC 2023, San Diego, USA
We experimentally demonstrate an SDN architecture for WDM VNTs to offload pass-through high bit-rate optical channels from overloaded ROADMs by provisioning spatial channels between the source and destination ROADM’s add-drop stages, and rerouting the optical channels.
End-to-End Inter-domain Transport Network Slice Management Using DLT-enabled Cloud-based SDN Controllers (invited paper)
OFC 2023, San Diego, USA
This paper discusses the advantages and challenges of multiple architectures that consider the negotiation of inter-domain transport network slices using blockchain technologies. To this end, we present results obtained using cloud-native ETSI TeraFlowSDN controller.
Towards Assessing Effects of Isolation on Determinism in Multi-Application Scenarios
FIRA '22: Proceedings of the ACM SIGCOMM Workshop on Future of Internet Routing & Addressing
In addition to the already present heterogeneity in the network service and application ecosystem, new challenges come in the form of emerging applications which require deterministic delay performance characteristics that go beyond traditional SLAs.
Providing More Than ‘Just’ Reachability Through Semantic Networking
FIRA '22: Proceedings of the ACM SIGCOMM Workshop on Future of Internet Routing & Addressing
The Internet has been constantly evolving beyond its original purpose to ensure the reachability between endpoints wherever they may be located.
Practical Mitigation of Smart Contract Bugs
Under review (preprint)
In spite of their popularity, developing secure smart contracts remains a challenging task. Existing solutions are either impractical as they do not support many complex real-world contracts or leave the burden to developers for fixing bugs.
On the Storage Overhead of Proof-of-Work Blockchains
Proceedings of the IEEE Blockchain Conference (IEEE Blockchain), 2022 (to appear)
Abstract: Permissionless blockchains such as Bitcoin have long been criticized for their high computational and storage overhead.
MITOSIS: Practically Scaling Permissioned Blockchains
In this work, we address this problem and present MITOSIS, a novel approach to practically improve scalability of permissioned blockchains
Improving the quality of generative models through Smirnov transformation
Solving the convergence issues of Generative Adversarial Networks (GANs) is one of the most outstanding problems in generative models. In this work, we propose a novel activation function to be used as output of the generator agent.
B5GEMINI: AI-driven Network Digital Twin
Sensors 2022, 22, 4106
Network Digital Twin (NDT) is a new technology that builds on the concept of Digital Twins (DT) to create a virtual representation of the physical objects of a telecommunications network.
End-to-End Interdomain Transport Network Slice Management Using Cloud-based SDN Controllers
2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC)
In spite of their popularity, developing secure smart contracts remains a challenging task. Existing solutions are either impractical as they do not support many complex real-world contracts or leave the burden to developers for fixing bugs.
Synthetic flow-based cryptomining attack generation through Generative Adversarial Networks
Scientific Reports volume 12, Article number: 2091 (2022)
Due to the growing rise of cyber attacks in the Internet, the demand of accurate intrusion detection systems (IDS) to prevent these vulnerabilities is increasing. To this aim, Machine Learning (ML) components have been proposed as an efficient and effective solution.
Experimental Demonstration of End-to-end NFV Orchestration on Top of the ADRENALINE Testbed
IEEE International Conference on Network Softwarization (NetSoft2022)
This demonstration will showcase the end-to-end orchestration of virtual network functions in the full-fledged ADRENALINE Testbed Cloud Platform expanding from the edge to the cloud.
QoS-Aware Inter-Domain Connectivity: Control Plane Design and Operational Considerations
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++
IEEE International Conference on Computer Communications 2022
Today's networks support a great variety of services with different bandwidth and latency requirements. To maintain high user satisfaction and efficient resource utilization, providers employ traffic shaping.
Evaluation of the abstraction of optical topology models in blockchain-based data center interconnection
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
The Optical Networking and Communication Conference & Exhibition - OFC2022
We demonstrate zero-touch device bootstrapping, monitoring, and L3-VPN service management using the novel TeraFlow OS SDN controller prototype.
Architecture to Deploy and Operate a Digital Twin Optical Network
The Optical Networking and Communication Conference & Exhibition - OFC2022
Microservice-Based Unsupervised Anomaly Detection Loop for Optical Networks
The Optical Networking and Communication Conference & Exhibition - OFC2022
Unsupervised learning (UL) is a technique to detect previously unseen anomalies without needing labeled datasets. We propose the integration of a scalable UL-based inference component in the monitoring loop of an SDN-controlled optical network.
Dynamic Reconfiguration of WDM Virtual Network Topology over SDM Networks for Spatial Channel Failure Recovery with gRPC Telemetry
The Optical Networking and Communication Conference & Exhibition - OFC22
We experimentally demonstrate the dynamic reconfiguration of WDM VNTs in response to SDM spatial channel failures. We present an SDN control architecture with gRPC-telemetry and analytics to detect failures and restore failed virtual WDM links.
SDN Control Architectures for WDM over SDM (WDMoSDM) Networks
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
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
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.