YANG modeling of network elements for the management and monitoring of Elastic Optical Networks

Akhtar, Jobaida

doi:10.1109/ictp.2015.7427931

Cited by 5 publications

(3 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Academic initiatives to control optical components recently proposed open YANG models for elastic optical networks (EONs) [21], with focus on the monitoring functionalities [23] and specific models to manage sliceable transponders [24]. Optical network failure issues are addressed in [25].…”

Section: A Optical-layer Transport Controlmentioning

confidence: 99%

Open-Source Network Optimization Software in the Open SDN/NFV Transport Ecosystem

Garrich

Moreno-Muro

Bueno-Delgado

et al. 2019

J. Lightwave Technol.

View full text Add to dashboard Cite

Transport ecosystems that combine Software Defined Networking (SDN) and Network Function Virtualization (NFV) are characterized by an unprecedented network control and resource dynamicity. Manual optimization is unmanageable. In this context, open systems that manage and orchestrate SDN/NFV-enabled networks offer programming frameworks that abstract the low-level particularities in the data-plane forwarding devices and in the hardware appliances that provide the IT resources. Although these open systems present notable complexity, their programming abstractions promote a client layer where third-party applications can provide different functionalities thus enabling Optimization-as-a-Service (OaaS) business opportunities. In this paper, we cover open-source optimization software initiatives for offline planning and online provisioning and orchestration of SDN/NFV networks. With this goal in mind, we first focus on open software (and framework) initiatives through a set of realistic use cases that require optimization in multi-layer optical transport scenarios and ecosystems that combine transport with IT resources. The importance of a joint optimization of both network and IT domains is emphasized, a new paradigm triggered by SDN/NFV technologies. We discuss the theoretical limits to algorithm performances, and review available open-source frameworks for problem modelling that enable the interaction with solvers. Finally we focus on the Net2Plan open-source network planning tool, a Java-based software that suitably embraces the multiple features required in the optimization of joint transport network and IT resource SDN/NFV ecosystems. Recent works based on Net2Plan are reviewed to illustrate its suitability for rapid algorithm prototyping, and for interaction with SDN/NFV-enabled networks.

show abstract

Section: A Optical-layer Transport Controlmentioning

confidence: 99%

Open-Source Network Optimization Software in the Open SDN/NFV Transport Ecosystem

Garrich

Moreno-Muro

Bueno-Delgado

et al. 2019

J. Lightwave Technol.

View full text Add to dashboard Cite

show abstract

“…In this context, academic initiatives to control optical components propose open YANG models [22] for EON [23], including monitoring functionalities [24] and management of sliceable transponders [25]. On the industrial side, the recent OpenROADM standardization initiative [8], proposes an interface for multi-vendor ROADM access and configuration.…”

Section: A Open and Disaggregated Optical Networkmentioning

confidence: 99%

OSNR Aware Composition of an Open and Disaggregated Optical Node and Network

Liu

Peters

Garrich

et al. 2017

J. Opt. Commun. Netw.

View full text Add to dashboard Cite

Function Programmable Optical Network has been recently proposed to enhance flexibility on optical transport based on Architectureon-Demand (AoD). The flexible synthesis of optical node architectures provided by AoD enables an open and disaggregated optical layer thanks to the available deep programmability. However, previous studies focus on how to synthesize a single node out of switching function blocks neglecting the optical signal-to-noise ratio (OSNR) impact, power imbalance effects due to diverse set of devices traversed per input-output configuration and network-wide implications. In this work, we present Optical Network-wide Function Synthesis (ONetFuS), an algorithm to compose AoD nodes that considers placement and configuration of both switches and amplifiers. ONeFuS minimizes OSNR degradation and deviation across channels and offers enhanced power balance performance. Moreover, ONetFuS addresses multiple-node scenarios to investigate cascading, transmission distance, and networking effects. We compare the number of optical crossconnections computed by our proposal against solutions in the literature. Results in network scenarios including number of components, power balance, OSNR variations and OSNR penalty reductions, prove the suitability of our proposed ONetFuS for Open and Function Programmable Optical Networks.

show abstract

“…In particular, academic initiatives to control optical components recently proposed open YANG models [12] for EON [13]. In this research direction, YANG models have been proposed for monitoring functionalities in EONs [14] and specific models to manage sliceable transponders [15]. More recently, specific NETCONF protocol features and YANG models have also been proposed to address optical network failure issues [16].…”

Section: Introductionmentioning

confidence: 99%

Experimental Validation of Time-Synchronized Operations for Software-Defined Elastic Optical Networks

Bravalheri

Alabarce

Muqaddas

et al. 2017

J. Opt. Commun. Netw.

View full text Add to dashboard Cite

Elastic Optical Networks (EON) have been proposed as a solution to efficiently exploit the spectrum resources in the physical layer of optical networks. Moreover, by centralizing legacy Generalized Multi-Protocol Label Switching (GMPLS) control-plane functionalities and providing a global network view, Software Defined Networking (SDN) enables advanced network programmability valuable to control and configure the technological breakthroughs of EON. In this paper, we review our recent proposal [1] of time-synchronized operations (TSO) to minimize disruption time during lightpath reassignment in EON. TSO have been recently standardized in SDN and here we discuss its implementation using NETCONF and OpenFlow in optical networks. Subsequently, we update our analytical model considering an experimental characterization of the WSS operation time. Then, we extend our previous work with an experimental validation of TSO for lightpath reassignment in a five-node metropolitan optical network test-bed. Results validate the convenience of our TSO-based approach against a traditional asynchronous technique given its reduction of disruption time while both techniques maintain a similar network performance in terms of optical signal-to-noise ratio (OSNR) and optical power budget.

show abstract

YANG modeling of network elements for the management and monitoring of Elastic Optical Networks

Cited by 5 publications

References 9 publications

Open-Source Network Optimization Software in the Open SDN/NFV Transport Ecosystem

Open-Source Network Optimization Software in the Open SDN/NFV Transport Ecosystem

OSNR Aware Composition of an Open and Disaggregated Optical Node and Network

Experimental Validation of Time-Synchronized Operations for Software-Defined Elastic Optical Networks

Contact Info

Product

Resources

About