Achim Autenrieth

Achim Autenrieth
Adtran

Dr.-Ing.

About

145
Publications
25,178
Reads
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2,201
Citations
Additional affiliations
March 2016 - present
ADVA Optical Networking SE
Position
  • Managing Director
June 2010 - February 2016
ADVA Optical Networking SE
Position
  • Principal Engineer Advanced Technology
April 2007 - May 2010
Nokia
Position
  • Head of BCS R&D Innovations

Publications

Publications (145)
Article
We investigate the techno-economic benefits of a novel optical transport network (OTN) architecture that meets the transport requirements of 6G systems in the Metro/Core network segments. The proposed solution is based on the disaggregation of the monolithic chassis-based node architecture that is used today to deploy OTN networks. The disaggregati...
Conference Paper
It is essential to be able to identify hidden anomalies in order to fully automate optical networks. This requires specific features from the application programming interfaces (APIs) used by the control plane and network monitoring solution. One of the solutions, Transport API (TAPI), utilizes advanced techniques in telemetry streaming. The update...
Article
Full-text available
Flexible-grid elastic optical networks (EONs) have recently been widely deployed to support the growing demand for bandwidth-intensive applications. For cost-efficient scaling of the network capacity, multi-band systems are a promising solution. Optimized utilization of EONs is required to delay cost-extensive network upgrades and to lower cost and...
Conference Paper
We demonstrate a TAPI-based telemetry streaming framework for automated service provisioning and monitoring in multi-domain optical networks. The demo show-cases ML-based anomaly detection and network management across domains adhering to recommended YANG and protocol standards.
Conference Paper
We propose a novel framework that enables data ecosystem and regulated telemetry streaming in open and disaggregated optical networks. We review its requirements, present its architecture, and discuss two demonstrated use-cases in our testbeds.
Conference Paper
We investigate buffer-aware demand-routing of key-consumption demands in QKD networks and implement a measurement-based framework for path selection. The proposed ML-based algorithm outperforms state-of-the-art heuristics by 22 % and 92 % for networks under test.
Conference Paper
This demonstration showcases how TeraFlowSDN provides support for hierarchical control of multiple heterogeneous SDN domains (through IP, microwave and optical technologies). Different transport slices are offered with multiple SLAs and grouped to optimize resources.
Conference Paper
We demonstrate a novel and modular telemetry broker that allows remote collection and exchange of telemetry data. Our proposal enforces data sovereignty principles powered by International Data Spaces components and enables unprecedented data ownership control.
Conference Paper
A distributed telemetry system integrating optical measurement and event data collection is demonstrated. Measurements of optical spectra from Nokia Bell Labs, of optical transponders from ADVA and SDN controller events from CTTC will be showcased.
Conference Paper
Diverse network solutions in Optical Transport Networks require a suitable platform for assessment. Digital Twin (DT) paradigm is proposed, and evaluation is conducted between simulators, emulators, and DT to understand the capabilities of different platforms.
Article
Full-text available
As long-haul network operators upgrade core optical networks to support 5G services, research and standardization efforts for 6G have begun. Keeping in mind the ever-growing demand for high-bandwidth services, our work proposes a novel core-network traffic model which exploits the network’s graph and population metric to estimate demands. We furthe...
Preprint
The H2020 METRO-HAUL European project has architected a latency-aware, cost-effective, agile, and programmable optical metro network. This includes the design of semidisaggregated metro nodes with compute and storage capabilities, which interface effectively with both 5G access and multi-Tbit/s elastic optical networks in the core. In this paper, w...
Preprint
Full-text available
This paper addresses the transmission-aware transceiver allocation problem of flexible optical networks for a multi-period planning. The proposed approach aims at assigning the best configuration of bandwidth variable transceivers (BVTRX) considering the amplifier noise and nonlinear channel interferences using the incoherent Extended Gaussian Nois...
Article
Full-text available
The H2020 METRO-HAUL European project has architected a latency-aware, cost-effective, agile, and programmable optical metro network. This includes the design of semidisaggregated metro nodes with compute and storage capabilities, which interface effectively with both 5G access and multi-Tbit/s elastic optical networks in the core. In this paper, w...
Preprint
We report the automated deployment of 5G services across a latency-aware, semidisaggregated, and virtualized metro network. We summarize the key findings in a detailed analysis of end-to-end latency, service setup time, and soft-failure detection time.
Conference Paper
Full-text available
With the recent advances in elastic optical networks, a significant increase in throughput is promised with the use of bandwidth variable transponders. These transponders support different lightpath configurations, in terms of data rate, modulation format, and bandwidth. Considering the ever-increasing traffic in the core optical networks, routing,...
Conference Paper
Full-text available
We propose a network reconfiguration heuristic, incorporating provisioning, upgrading, and rerouting of lightpaths for multi-period planning. Using the same physical network infrastructure, we achieve up to 33% increase in network throughput compared to the state-of-the-art.
Conference Paper
We report the automated deployment of 5G services across a latency-aware, semi-disaggregated, and virtualized metro network. We summarize the key findings in a detailed analysis of end-to-end latency, service setup time, and soft-failure detection time.
Preprint
Full-text available
A lightpath configuration algorithm considering a multi-period traffic model is presented and evaluated to a realistic German core network study. Strategically exploiting BVT excess capacity, we show that offered traffic can be carried up to an additional five years in all traffic growth scenarios. Introduction With 5G deployment becoming a reality...
Conference Paper
We report a method for correcting packet delay variation (PDV) of high priority express traffic due to frame preemption. Zero PDV with low additional deterministic delay is achieved for high priority express traffic, improving synchronization in time sensitive networks.
Conference Paper
A lightpath configuration algorithm considering a multi-period traffic model is presented and evaluated to a realistic German core network study. Strategically exploiting BVT excess capacity, we show that offered traffic can be carried up to an additional five years in all traffic growth scenarios.
Preprint
We report on the EU H2020 project METRO-HAUL use-case demonstration, including flexible allocation of storage and computing resources in different network locations and deployment of a network slice instance through a programmable multi-layer optical network.
Preprint
Full-text available
We present a transceiver configuration selection heuristic combining Enhanced Gaussian Noise (EGN) models, which shows a 40\% increase in throughput and 87\% decrease in execution time, compared to only approximate EGN and Full-Form EGN respectively.
Conference Paper
We report on the EU H2020 project METRO-HAUL use-case demonstration, including flexible allocation of storage and computing resources in different network locations and deployment of a network slice instance through a programmable multi-layer optical network.
Conference Paper
Full-text available
We present a transceiver configuration selection heuristic combining Enhanced Gaussian Noise (EGN) models, which shows a 40% increase in throughput and 87% decrease in execution time, compared to only approximate EGN and Full-Form EGN respectively.
Conference Paper
Full-text available
We present and demonstrate the alarm correlation capability executed as an SDN application in an open, partially disaggregated multi-vendor optical network. This SDN application reconciles device alarms from Open Terminals with service alarms from an Open Line System controller to perform fault isolation, alarm correlation, and optical restoration.
Conference Paper
We demonstrate automated network service provisioning and virtual network function orchestration with P4-based VNF acceleration. Zero-touch provisioning of distributed computing resources at the edge and central office is validated with a video analytics use case.
Conference Paper
Full-text available
The development of 5G wireless technology is in progress looking to cope with the increasing demands for high capacity, low latency, and ubiquitous mobile access. Cloud/Centralized Radio Access Networks (C-RAN) has been proposed as a promising approach to address the 5G benchmarks. C-RAN is a rising mobile network architecture based on the centrali...
Preprint
Growing traffic demands and increasing security awareness are driving the need for secure services. Current solutions require manual configuration and deployment based on the customer's requirements. In this work, we present an architecture for an automatic intent-based provisioning of a secure service in a multilayer - IP, Ethernet, and optical -...
Article
Full-text available
Growing traffic demands and increasing security awareness are driving the need for secure services. Current solutions require manual configuration and deployment based on the customer’s requirements. In this work, we present an architecture for an automatic intent-based provisioning of a secure service in a multilayer—IP, Ethernet, and optical—netw...
Preprint
Full-text available
Software-defined networking is finding its way into optical networks. Here, it promises a simplification and unification of network management for optical networks allowing automation of operational tasks despite the highly diverse and vendor-specific commercial systems and the complexity and analog nature of optical transmission. A fundamental com...
Article
Full-text available
In this work we demonstrate an automatic intent-based encryption layer selection and configuration for a multilayer network covering IP and optical utilizing an open source SDN orchestrator. Results indicate that the processing impact of a secure channel creation is negligible.
Preprint
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.
Preprint
Datacenter operators and internet content providers require optical network programmability to efficiently interconnect distributed datacenters. This paper describes the requirements, applications and use cases for optical network programmability. Based on application scenarios, open northbound APIs with different levels of control and abstraction...
Conference Paper
We propose an SDN-integrated framework for distributed cognitive fault discovery and diagnosis across end-to-end network infrastructure. The approach is evaluated on a real-world use-case and proactively identifies root cause of autonomously-detected optical power level anomalies.
Article
In face of staggering traffic growth driven by cloud-based platforms, modern optical networks -forming the backbone of such connectivity- are faced with increasing requirements in terms of operational reliability. The challenge is that of cognition-driven learning and fault management workflows, cost-effectively assuring the next-generation network...
Article
Full-text available
Today’s networks are quickly evolving toward more dynamic and flexible infrastructures and architectures. This software-based evolution has seen its peak with the development of the software-defined networking (SDN) and network functions virtualization (NFV) paradigms. These new concepts allow operators to automate the setup of services, thus reduc...
Article
Full-text available
Software-defined networking is finding its way into optical networks. Here, it promises a simplification and unification of network management for optical networks allowing automation of operational tasks despite the highly diverse and vendor-specific commercial systems and the complexity and analog nature of optical transmission. Common abstractio...
Presentation
Full-text available
We describe the approaches followed in H2020 EU project ACINO to enable application-centric service differentiation all the way down to the optical layer, by means of an open source modular SDN orchestrator enabling applications to program the IP/Optical transport network by means of high-level primitives.
Article
Full-text available
In the context of the fifth generation of mobile technology (5G), multiple technologies will converge into a unified end-to-end system. For this purpose, software defined networking (SDN) is proposed, as the control paradigm will integrate all network segments and heterogeneous optical and wireless network technologies together with massive storage...
Article
In this work, we experimentally demonstrate highly flexible and intelligent inter-domain coordinated actions based on adaptive software-defined networking (SDN) orchestration. An advanced multi-domain multi-technology testbed is implemented, which consists of a 400-Gb/s variable-capacity optical packet switching domain and a Tb/s-class flexi-grid w...
Article
Full-text available
Future 5G networks will bring important challenges to network operators, such as the traffic load increase mainly due to the proliferation of mobile broadband communications. This will force mobile network operators (MNOs) redesigning and investing in their infrastructures [e.g., new equipment for radio access network (RAN), backhaul] to cope with...
Conference Paper
Full-text available
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.
Conference Paper
Full-text available
In this work we demonstrate an automatic intent-based encryption layer selection and configuration for a multilayer network covering IP and optical utilizing an open source SDN orchestrator. Results indicate that the processing impact of a secure channel creation is negligible.
Conference Paper
Full-text available
Cloud Radio Access Network (C-RAN) and Fixed Mobile Convergence (FMC) receive a lot of attention recently because of the cost decrease and the performance improvement that they represent for telecommunications' operators. In this paper, a fixed/mobile convergent architecture is introduced based on the integration of fronthaul links with fiber acces...
Article
Network virtualization is an emerging technique that enables multiple tenants to share an underlying physical infrastructure, isolating the traffic running over different virtual infrastructures/tenants. This technique aims to improve network utilization, while reducing the complexities in terms of network management for operators. Applied to this...
Conference Paper
A common Transport API is proposed for joint cloud/network orchestration, allowing interworking of heterogeneous control planes to provide provisioning/recovery of QoS-aware E2E services. We present its first demonstration in a multi-partner testbed including data-plane monitoring. OCIS codes: (060.4256) Networks, network optimization; (060.4253) N...
Conference Paper
Cognitive SDN orchestration over 400-Gbps OPS and Tbps-class Flexi-WDM networks is demonstrated, where the SDN-controllable OFDM transponders and the extended transport API enable the congestion-aware provisioning of end-to-end real-time services.
Article
Full-text available
Software-defined networking (SDN) and network function virtualization (NFV) have emerged as the most promising candidates for improving network function and protocol programmability and dynamic adjustment of network resources. On the one hand, SDN is responsible for providing an abstraction of network resources through well-defined application prog...
Article
Full-text available
A virtualization architecture is presented for deploying multitenant virtual networks on top of multitechnology optical networks. A multidomain network hypervisor (MNH) and a multidomain SDN orchestrator (MSO) are introduced with this purpose. The MNH provides an abstract view of each virtual network and gives control of it to each independent cust...
Conference Paper
Datacenter operators and internet content providers require optical network programmability to efficiently interconnect distributed datacenters. This paper describes the requirements, applications and use cases for optical network programmability. Based on application scenarios, open northbound APIs with different levels of control and abstraction...
Conference Paper
Application-based Network Operations consists of existing components offering an application-driven network management. We validate its applicability to multi-tenant networks in multi-technology optical domains based on congestion detection and failure recovery by demonstrating fast reconfiguration, while keeping the upper layer unaware.
Conference Paper
Full-text available
The Control Orchestration Protocol (COP) abstracts a common set of control plane functions used by an various SDN controllers, allowing the interworking of heterogeneous control plane paradigms (i.e., OpenFlow, GMPLS/PCE). COP has been defined using YANG model language and can be transported using RESTconf, which is being incorporated by industry....
Article
Full-text available
A multidomain optical transport network composed of heterogeneous optical transport technologies (e.g., flexi/fixed-grid optical circuit switching and optical packet switching) and control plane technologies (e.g., centralized OpenFlow or distributed GMPLS) does not naturally interoperate, and a network orchestration mechanism is required. A networ...
Article
Software-Defined Networking and network virtualization are current topics in networks research. An increased flexibility on the optical layer and demands for more dynamic bandwidth control make them candidates to transform optical networking as well. This paper reviews the general concepts, recent progress and open issues toward SDN controlled flex...
Conference Paper
A network hypervisor is introduced to dynamically deploy multi-tenant virtual networks on top of multi-technology optical networks. It provides an abstract view of each virtual network and enables its control through an independent SDN controller.
Conference Paper
We propose to virtualize the SDN control functions and move them to the cloud. We experimentally evaluate the first SDN/NFV orchestration architecture to dynamically deploy independent SDN controller instances for each deployed virtual optical network.