340 results on '"NETCONF"'
Search Results
2. Automatic tactical network node configuration with XML and SNMP
- Author
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Marek Małowidzki and Przemysław Bereziński
- Subjects
network management ,network configuration ,tactical network ,SNMP ,NETCONF ,Telecommunication ,TK5101-6720 ,Information technology ,T58.5-58.64 - Abstract
In the paper, we describe a “plug-and-play” configuration of nodes of a tactical network on the basis of XML configuration templates and a network plan, developed during the network planning process. We present the concept of a configuration repository, an XML-based database that stores network structure and configuration data, and describe how the Simple Network Management Protocol is used to apply the settings to network devices. We also comment on a possible us a task.
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- 2023
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3. Felsökning av nätverksenheter : En metod för effektivare felsökning av Cisco Nexus 3000 switch
- Author
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Khajo, Aboud, Razai, Mattias, Khajo, Aboud, and Razai, Mattias
- Abstract
Denna rapport syftar till att hitta en metod för effektivare felsökning av Cisco Nexus 3000 switchar. Företag utvecklas ständigt och behovet av flera nätverksenheter ökar, dock har metoder för felsökningen av nätverksenheter inte standardiserats. Den gamla metoden genom kommandorad där enskilda nätverksenheter granskas en i taget är inte längre lämplig i dagens IT-företag när antalet nätverksenheter uppgår till flera tiotusen. Rapporten görs i samarbete med IT-företaget Conscia. Metoden baseras på en simulering och en testuppkoppling med hjälp av nätverkshanteringsprotokollet NETCONF genom Python-biblioteket Ncclient. Resultatet bestod av flera parametrar och faktorer som kan indikera en förändring i nätverksenheten. Detta har resulterat i en metod som ger information om olika parametervärden och faktorer, vilket ger nätverksadministratören en klarare bild kring switchens tillstånd. Metoden har lett till effektivare felsökning av Cisco Nexus 3000 vid inträffandet av nätverksincidenter., This report aims to find a method for more efficient troubleshooting of Cisco Nexus 3000 switches. Companies are constantly developing and the need for multiple network devices is increasing, however, methods for troubleshooting network devices have not been standardized. The old method through the command line interface where individual network devices are reviewed one at a time is no longer suitable in today's IT companies when the number of network devices amounts to several tens of thousands. The report is made in collaboration with the IT company Conscia. The method is based on a simulation and a test connection using the network management protocol NETCONF through the Python library Ncclient. The result consisted of several parameters and factors that may indicate a change in the network device. This has resulted in a method that provides information on various parameter values and factors, which gives the network administrator a clearer picture of the state of the switch. The method has led to more efficient troubleshooting of the Cisco Nexus 3000 when network incidents occur.
- Published
- 2024
4. Software-Defined Reconfigurability, White Boxes, and Abstraction
- Author
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Sambo, Nicola, Giorgetti, Alessio, Sgambelluri, Andrea, Castoldi, Piero, Valcarenghi, Luca, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Tzanakaki, Anna, editor, Varvarigos, Manos, editor, Muñoz, Raul, editor, Nejabati, Reza, editor, Yoshikane, Noboru, editor, Anastasopoulos, Markos, editor, and Marquez-Barja, Johann, editor
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- 2020
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5. Enabling Delegation of Control Plane Functionalities for Time Sensitive Networks
- Author
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Nicola Sambo, Silvia Fichera, Andrea Sgambelluri, Giuseppe Fioccola, Piero Castoldi, and Kostas Katsalis
- Subjects
TSN ,time sensitive networking ,IEEE 802.1 ,SDN ,NETCONF ,YANG ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
This paper proposes a new paradigm for control plane in Time Sensitive Networks (TSN). An SDN controller proactively instructs network elements on the reconfigurations to perform locally if some specific events occur (e.g., failures, performance degradations). Instructions are given in the form of Finite State Machines (FSMs), which store information related to the actions that each network element should execute to react against a specific event. Thus, if such event occurs, the SDN controller is by-passed reducing reaction (e.g., recovery) time. Such an approach is here implemented for recovery upon failures in TSN. Experiments of failure recovery are carried out and measurements are presented comparing the FSM-based solution with a fully-centralized reactive restoration. Moreover, the proposed approach is compared through simulations against Frame Replication and Elimination for Reliability. Results will show how proactive FSM manipulation can strongly reduce recovery time in SDN-based TSN networks without overloading the network with frame replicas.
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- 2021
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6. Building a Truly Dynamic Filterless Metro Network by Reusing a Commercial PON's Data-Plane and a Novel SDN-Enabled Control-Plane.
- Author
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Kosmatos, Evangelos, Uzunidis, Dimitris, Matrakidis, Chris, Stavdas, Alexandros, Horlitz, Sebastian, Pfeiffer, Thomas, and Lord, Andrew
- Abstract
The migration of DataCenters into Metropolitan Area Networks creates new challenges which include the need for rapid service provisioning and recovery and new, cost-effective, connectivity schemes. Here we propose and demonstrate a truly dynamic transportation platform tailored for a metro network. The novelty of the proposed architecture is that the dynamic data-plane exploits available commercial PON technology while the dynamic control-plane is SDN-enabled using OpenFlow/Netconf. The dynamic operation of the platform in several interesting scenarios is demonstrated on an experimental test-bed. [ABSTRACT FROM AUTHOR]
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- 2019
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7. Performance Evaluation of NETCONF Protocol in MANET Using Emulation
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Gao, Weichao, Nguyen, James, Ku, Daniel, Zhang, Hanlin, Yu, Wei, Kacprzyk, Janusz, Series editor, and Lee, Roger, editor
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- 2016
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8. Implementation av Python via NETCONFoch RESTCONF : En jämförelsestudie
- Author
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Ekström, Philip and Ekström, Philip
- Abstract
Det går att hantera nätverksenheter och nätverk på olika sätt. Två av dessa sätt är RESTCONF och NETCONF. Denna undersöknings syfte är att ta reda på vilken av dessa två protokoll som är snabbast och om storlek på nätverket har påverkan på vilket att dessa protokoll som bör användas. Resultatet visar att RESTCONF är snabbare än NETCONF på ett nät med tre routrar och två switchrar. RESTCONF är även snabbare än NETCONF på ett nätverk som består av 17 routrar och fem switchrar. Både NETCONF och RESTCONF tar längre tid i nätverket med fler nätverksenheter än i nätverket med färre nätverksenheter.
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- 2023
9. X.509 Certificate-Based Authentication for NETCONF and RESTCONF : Design Evaluation between Native and External Implementation
- Author
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Li, Qi and Li, Qi
- Abstract
The Network Service Ochestrator (NSO) is a network automation system provided by Cisco that is used to automate large network changes with the ability to roll back in case of errors. It provides a rich northbound interface to communicate with the user and a southbound interface to orchestrate network devices securely. On these northbound and southbound interfaces, NSO supports NETCONF and RESTCONF, which is an IETF standard for network automation. NSO native implementation of NETCONF and RESTCONF lacks support for Public-Key Infrastructure (X.509) (PKIX) infrastructure and SSH and SSL/TLS as transport. Instead, Cisco suggests that customers use external relay agents such as PKIX-SSH for SSH and GNUTLS for TLS for NETCONF. The certificates and keys are saved on the hard drive and loaded for every connection via RESTCONF. This workaround solution provides authentication and authorization without audit logging within NSO. In this work, a native implementation of the X509 certification with PKIX infrastructure on SSH and SSL/TLS for NETCONF and RESTCONF is investigated. The project evaluates design alternatives with respect to security, computational complexity, maintainability, and user-friendliness, and concludes by highlighting the pros and cons of both native and workaround implementation., Ciscos NSO är en nätverksorkestreringsplatform som används för att automatisera stora ändringar i nätverk med egenheten att ändringarna kan backas tillbaka om inte samtliga kan kan utföras. NSO tillhandahåller användare gränssnitt (northbound) för att säkert kommunicera (southbound) med nätverksenheterna. Gränssnitten stödjer de standardiserade protokollen Netconf och Restconf. Båda dessa protokoll saknar inbyggts stöd för PKIX över SSH, SSL och TSL. När detta önskas rekommenderar Cisco sina kunder att externa klienter som PKIX-SSH eller GNUTLS. När detta görs sparas certifikat och nyklar lokalt för varje Restconf koppel och ingen läggning av flödet kommer att ske i NSO. I detta arbete presenteras ett inbyggt stöd för X509 certifiering med PKIX för SSH, SSL, och TLS. Stödet kan användas för Netconf och Restconf. Olikheter mellan dagens tillgängliga stöd och det inbyggda stödet med avseende på säkerhet, komplexitet, underhållbarhet, och användarvänlighet jämförs. Avslutningsvis belyses för- respektive nackdelar med de olika implementateringarna.
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- 2023
10. IMPLEMENTING NETCONF AND YANG ON CUSTOM EMBEDDED SYSTEMS
- Author
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Georges, Krister, Jahnstedt, Per, Georges, Krister, and Jahnstedt, Per
- Abstract
Simple Network Management Protocol (SNMP) has been the traditional approach for configuring and monitoring network devices, but its limitations in security and automation have driven the exploration of alternative solutions. The Network Configuration Protocol (NETCONF) and Yet Another Next Generation (YANG) data modeling language significantly improve security and automation capabilities. This thesis aims to investigate the feasibility of implementing a NETCONF server on the Anybus CompactCom (ABCC) Industrial Internet of Things (IIoT) Security module, an embedded device with limited processing power and memory, running on a custom operating system, and using open source projects with MbedTLS as the cryptographic primitive library. The project will assess implementing a YANG model to describe the ABCC’s configurable interface, connecting with a NETCONF client to exchange capabilities, monitoring specific attributes or interfaces on the device, and invoking remote procedure call (RPC) commands to configure the ABCC settings. The goal is to provide a proof of concept and contribute to the growing trend of adopting NETCONF and YANG in the industry, particularly for the Industrial Internet of Things (IIoT) platform of Hardware Meets Software (HMS).
- Published
- 2023
11. Network Configuration in OpenFlow Networks
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Zaalouk, Adel, Pentikousis, Kostas, Akan, Ozgur, Series editor, Bellavista, Paolo, Series editor, Cao, Jiannong, Series editor, Coulson, Geoffrey, Series editor, Dressler, Falko, Series editor, Ferrari, Domenico, Series editor, Gerla, Mario, Series editor, Kobayashi, Hisashi, Series editor, Palazzo, Sergio, Series editor, Sahni, Sartaj, Series editor, Shen, Xuemin (Sherman), Series editor, Stan, Mircea, Series editor, Xiaohua, Jia, Series editor, Zomaya, Albert, Series editor, Agüero, Ramón, editor, Zinner, Thomas, editor, Goleva, Rossitza, editor, Timm-Giel, Andreas, editor, and Tran-Gia, Phuoc, editor
- Published
- 2015
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12. Optimizing the Operation Layer Algorithm of NETCONF Protocol
- Author
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Lee, YangMin, Lee, JaeKee, Park, James J. (Jong Hyuk), editor, Chen, Shu-Ching, editor, Gil, Joon-Min, editor, and Yen, Neil Y., editor
- Published
- 2014
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13. Field Trial: Demonstrating Automatic Reconfiguration of Optical Networks Based on Finite State Machine.
- Author
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Sambo, Nicola, Christodoulopoulos, Kostas, Argyris, Nikos, Giardina, Pietro, Delezoide, Camille, Roccato, Diego, Percelsi, Alessandro, Morro, Roberto, Sgambelluri, Andrea, Kretsis, Aristotelis, Kanakis, Giannis, Bernini, Giacomo, Varvarigos, Emmanuel, and Castoldi, Piero
- Abstract
Optical networks are evolving toward self-adaptation exploiting self-observation of network conditions (e.g., through monitoring at the physical layer). Thus, according to monitoring information, reconfiguration of network devices including switches and transponders (e.g., transmission parameters) is acted. Typically, the network is thought as centralized, where a central software defined networking (SDN) controller holds the overall view of network topology and resources and, upon connection request, it decides for routing and spectrum assignment, and, then, it configures accordingly the data plane. Similarly, the central controller receives notifications when failures occur and (re)acts by reconfiguring the data plane. However, centralized solutions can suffer from scalability and responsiveness issues, translating in delays during provisioning and recovery. In this paper, we report the demonstration in a field trial of an automatic and self-reconfigurable network. We leverage a novel control paradigm based on programmable finite state machine where each state is associated to a specific network condition and a state transition implies network reconfiguration. Thanks to this approach the central controller can instruct (pre-program) network devices making them aware of the proper reconfiguration settings associated to the network conditions. Then, the reconfiguration is triggered locally, thus increasing scalability and response speed. Two successful experiments will be shown: first, local transmission parameter adaption according to physical layer conditions; second, connection central frequency optimization mitigating filtering effects and distortions. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
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14. Hybrid Networking SDN y SD-WAN: Interoperabilidad de Arquitecturas de Redes Tradicionales y Redes definidas por Software en la era de la digitalización
- Author
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Salazar Chacón, Gustavo David
- Subjects
RESTCONF ,Redes Definidas por Software (SDN) ,Modelo de Datos (YANG) ,Pruebas de Concepto (PoCs) ,Ciencias Informáticas ,P4 ,SDLC ,SDWAN ,Controladores SDN (ODL, ONOS, RYU) ,REST-APIs ,Viptela ,NETCONF ,Ansible ,Napalm, Netmiko ,SD-Access ,OpenFlow ,LISP ,NetDevOps ,Formato de Datos (JSON, XML, YAML) ,Open Networking ,Segment-Routing ,VXLAN - Abstract
Desde hace una década, las redes de datos empresariales han experimentado una evolución vertiginosa dada por la adopción de modelos basados en la nube, contenedores y microservicios, primordialmente por que entregan mayor flexibilidad, efectividad y reducción de costos en cuanto a Tecnologías de la Información se refiere. Las redes de datos permiten que la información transmitida pueda llegar en cualquier momento a cualquier lugar, sin embargo, los requerimientos de usuarios y empresas actuales exigen cada vez una mejor respuesta de la infraestructura de telecomunicaciones. Esos requerimientos fueron más evidentes durante la época de pandemia COVID-19, llevándonos a una “Era de Datos y Sabiduría”, virtualidad y Transformación Digital, ya que la mayor parte de las actividades humanas y económicas dependen de una adecuada y segura transferencia de información sustentada por las redes de datos. Es así como los datos se convirtieron en el bien intangible más importante del siglo XXI. A medida que más dispositivos móviles 4G/5G-WiFi6E ingresan a la red, así como aplicaciones y servicios novedosos entran en funcionamiento, una mayor carga de envío y procesamiento se añade a la red, generando dificultades tanto en la administración y monitoreo, como en la configuración y restablecimiento en caso de fallas. Software-Defined Networking (o SDN por sus siglas en inglés), desde su creación y posterior adopción, ha prometido ser la solución a los problemas mencionados a través del uso de técnicas como programabilidad, Hardware Abierto con capacidades programáticas con P4, agilidad extrema, además del empleo de Interfaces Gráficas seguras que otorgan visibilidad total de la infraestructura. La presente tesis da un vistazo a la evolución de las redes de datos hacia el paradigma SDN y sus diversas adopciones (SD-Access, SDData Center y SD-WAN) con el fin de comprobar su facilidad de implementación, para lo cual se aborda los fundamentos de dichas tecnologías, partiendo de lo que implica el desacoplamiento del Plano de Control del Plano de Datos en equipos de red, hasta el concepto de cambio cultural y tecnológico denominado NetDevOps, imprescindible para que el ecosistema ágil SDN funcione de forma adecuada, atravesando por el análisis de protocolos estandarizados de próxima generación que permiten la implementación de estos entornos en redes reales: LISP, VXLAN, OMP y Segment-Routing, desarrollando a la par pruebas de concepto (PoCs) en ambientes de emulación y con equipos físicos, cerrando de esa manera el proceso investigativo que da validez a la integración de SDN basadas en programabilidad con redes tradicionales, siendo esa justamente la mayor contribución entregada por esta tesis., Tesis doctoral de la Universidad Nacional de La Plata. Grado alcanzado: Doctor en Ciencias Informáticas. Director de tesis: Luis Armando Marrone. La tesis, presentada en el año 2021, obtuvo el Premio "Dr. Raúl Gallard" en el 2022., Editorial de la Universidad Nacional de La Plata
- Published
- 2023
15. OWL-Based Node Capability Parameter Configuration
- Author
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Thongtra, Patcharee, Aagesen, Finn Arve, Dittawit, Kornschnok, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Szabó, Róbert, editor, and Vidács, Attila, editor
- Published
- 2012
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16. Enhancing Learning Efficiency of Brain Storm Optimization via Orthogonal Learning Design
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Yuhui Shi, Shi Cheng, and Lianbo Ma
- Subjects
NETCONF ,education.field_of_study ,Association rule learning ,computer.internet_protocol ,Population ,020206 networking & telecommunications ,02 engineering and technology ,computer.software_genre ,Computer Science Applications ,Human-Computer Interaction ,Set (abstract data type) ,Transmission (telecommunications) ,Control and Systems Engineering ,0202 electrical engineering, electronic engineering, information engineering ,020201 artificial intelligence & image processing ,Data mining ,Electrical and Electronic Engineering ,Cluster analysis ,education ,computer ,Software ,Learning design - Abstract
In brain storm optimization (BSO), the convergent operation utilizes a clustering strategy to group the population into multiple clusters, and the divergent operation uses this cluster information to generate new individuals. However, this mechanism is inefficient to regulate the exploration and exploitation search. This article first analyzes the main factors that influence the performance of BSO and then proposes an orthogonal learning framework to improve its learning mechanism. In this framework, two orthogonal design (OD) engines (i.e., exploration OD engine and exploitation OD engine) are introduced to discover and utilize useful search experiences for performance improvements. In addition, a pool of auxiliary transmission vectors with different features is maintained and their biases are also balanced by the OD decision mechanism. Finally, the proposed algorithm is verified on a set of benchmarks and is adopted to resolve the quantitative association rule mining problem considering the support, confidence, comprehensibility, and netconf. The experimental results show that the proposed approach is very powerful in optimizing complex functions. It not only outperforms previous versions of the BSO algorithm but also outperforms several famous OD-based algorithms.
- Published
- 2021
17. The Design of the Network Configuration Management Based on NETCONF Protocol
- Author
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Cui, Jianqun, Jia, Keming, Wu, Libing, Chen, Chuanhe, Lai, Mincai, and Zeng, Dehuai, editor
- Published
- 2011
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18. Experimental demonstration of a lightpath management procedure based on a hierarchical architecture.
- Author
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Giardina, P., Sambo, N., Dallaglio, M., Bernini, G., Carrozzo, G., Cugini, F., and Castoldi, P.
- Abstract
System margin reduction, performance prediction, and multi-vendor interoperability in future optical networks will require proper and effective monitoring functionalities of optical network services. This interest in monitoring features is driving new investigations on the management plane and procedures, and also targeting emerging protocols such as network configuration (NETCONF), which natively supports management functionalities. This paper presents the experimental demonstration of a management procedure for lightpaths in optical networks based on a hierarchical management plane. NETCONF is adopted for subscription to alarms and for alarm notification at the different layers in the hierarchy. YANG models are presented to configure monitoring entities in the network. The proposed system can be applied to both single- and multi-domain networks. The proposed solution is experimentally demonstrated in a control plane testbed including a hierarchical management plane. [ABSTRACT FROM PUBLISHER]
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- 2018
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19. Virtual network function deployment and service automation to provide end-to-end quantum encryption.
- Author
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Aguado, Alejandro, Lopez, Victor, Martinez-Mateo, Jesus, Peev, Momtchil, Lopez, Diego, and Martin, Vicente
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The nature of network services has drastically changed in recent years. New demands require new capabilities, forcing the infrastructure to dynamically adapt to new scenarios. Novel network paradigms, such as softwaredefined networking (SDN) and network functions virtualization, have appeared to provide flexibility for network management and services. The reliance on software and commoditized hardware of these new paradigms introduces new security threats and, consequently, one of the most desired capabilities is a strengthened security layer when connecting remote premises. On the other hand, traditional cryptographic protocols are based on computational complexity assumptions. They rely on certain mathematical problems (e.g., integer factorization, discrete logarithms, or elliptic curves) that cannot be efficiently solved using conventional computing. This general assumption is being revisited because of quantum computing. The creation of a quantum computer would put these protocols at risk and force a general overhaul of network security. Quantum key distribution (QKD) is a novel technique for providing synchronized sources of symmetric keys between two separated domains. Its security is based on the fundamental laws of quantum physics, which makes it impossible to copy the quantum states exchanged between both endpoints. Therefore, if implemented properly, QKD generates highly secure keys, immune to any algorithmic cryptanalysis. This work proposes a node design to provide QKD-enhanced security in end-to-end services and analyze the control plane requirements for service provisioning in transport networks. We define and demonstrate the necessary workflows and protocol extensions in different SDN scenarios, integrating the proposed solution into a virtual router providing QKD-enhanced IPsec sessions. [ABSTRACT FROM PUBLISHER]
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- 2018
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20. Sliceable Transponders: Pre-Programmed OAM,Control, and Management.
- Author
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Sambo, Nicola, Giorgetti, Alessio, Cugini, Filippo, and Castoldi, Piero
- Abstract
Sliceable transponders (S-BVTs) are expected to increase flexibility of elastic optical networks by providing multiple independent optical flows that can be routed based on operators needs and traffic. The support of several transmission modes (e.g., modulation format, coding, baud rate) also enables to adapt the transmission to the physical layer characteristics. Thus, a proper control of the S-BVT configuration is mandatory, as well as the monitoring of optical flows and the management of monitoring information. NETCONF, based on YANG modeling language, is emerging as a software defined networking protocol supporting configurationmessages as well asmessages to exchangemonitoring information within the management system. This paper presents control and management of sliceable transponders through NETCONF and YANG. Three operation, administration, and maintenance (OAM) procedures are presented to guarantee the maintenance of services in the presence of faults or physical layer degradations: centralized, hierarchical, and a scheme based on preprogrammed OAM. A YANG model enabling the preprogrammed OAMis proposed. Simulations show that hierarchical and preprogrammed OAM provide faster reaction time to degradations. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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21. NCClient: A Python Library for NETCONF Client Applications
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Bhushan, Shikhar, Tran, Ha Manh, Schönwälder, Jürgen, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Nunzi, Giorgio, editor, Scoglio, Caterina, editor, and Li, Xing, editor
- Published
- 2009
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22. NETCONF-Based Network Management System Collaborating with Aggregated Flow Mining
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Iijima, Tomoyuki, Shomura, Yusuke, Watanabe, Yoshinori, Ikeda, Naoya, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Hong, Choong Seon, editor, Tonouchi, Toshio, editor, Ma, Yan, editor, and Chao, Chi-Shih, editor
- Published
- 2009
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23. NETCONF Interoperability Testing
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Tran, Ha Manh, Tumar, Iyad, Schönwälder, Jürgen, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Sadre, Ramin, editor, and Pras, Aiko, editor
- Published
- 2009
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24. Avtomatizacija upravljanja omrežnih naprav prek aplikacijskih programskih vmesnikov
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GAZIČ, JAKOB and Kos, Andrej
- Subjects
RESTCONF ,YANG ,Automation ,API ,NSO ,Avtomatizacija ,NETCONF ,Python - Abstract
Komunikacijska omrežja dandanes postajajo vse bolj kompleksna. Vključujejo veliko število omrežnih naprav ter podpirajo različne storitve. Ker je taka omrežja težko učinkovito upravljati ročno, prek ukaznih vrstic na vsaki napravi posebej, je industrija začela iskati rešitve, ki omogočajo avtomatizacijo. V tem magistrskem delu sem obravnaval avtomatizacijo upravljanja omrežnih naprav prek aplikacijskih programskih vmesnikov, ki so jih v zadnjem času različni proizvajalci začeli implementirati na svojih napravah. V želji po enotnem načinu upravljanja naprav, je industrija standardizirala protokol imenovan NETCONF, ki omogoča nadzorovanje naprav prek aplikacijskih programskih vmesnikov. Zaradi vse večje popularnosti vmesnikov, ki sledijo principom REST, je bil standardiziran tudi protokol RESTCONF, ki omogoča enake funkcionalnosti kot NETCONF, vendar deluje po principih REST. Oba protokola sta primerna za avtomatizacijo upravljanja naprav, saj se ju da uporabiti v različnih programskih jezikih. V tej nalogi sem uporabil in primerjal oba protokola, ter vrednotil prednosti, ki jih prinašata v primerjavi z upravljanjem prek ukazne vrstice. Oba protokola sem najprej uporablil s pomočjo programskega jezika Python. Poleg pisanja lastnih skript sem obravnaval tudi orodja, ki nam poenostavijo uporabo aplikacijskih programskih vmesnikov. Osredotočil sem se na orodje Cisco NSO, ki omogoča centraliziran pogled na vse naprave v omrežju in poenostavi konfiguracijo kompleksnih storitev. V tej nalogi sem preizkusil prednosti uporabe tega orodja na primeru konfiguracije protokola OSPF v omrežju, ki ga sestavljajo štirje usmerjevalniki. Nowadays, computer networks are getting increasingly complex. Often they include a large number of devices, and they support many different services. Because it's hard to manage such networks manually, through the Command Line Interface (CLI) on each device, the industry has begun to look for solutions that enable automation. This thesis discussed the automation of network device management through application programming interfaces, which various vendors have recently implemented on their devices. In a desire for a unified way to manage devices, the industry has standardized a protocol called NETCONF, which allows control of devices through application programming interfaces. Due to the growing popularity of interfaces that follow the REST principles, the RESTCONF protocol has also been standardized, enabling NETCONF functionalities but working according to REST principles. Both protocols can be used to automate device management, as they can be used in different programming languages. In this paper, I used and compared both protocols and discussed the benefits compared to managing devices through Command Line Interface. First, I used both protocols in the Python programming language. In addition to writing our own scripts, I also looked at tools that make it easier for us to use application programming interfaces. I focused on the Cisco NSO tool, which provides a centralized view of all devices on the network and simplifies the configuration of complex services. In this paper, I tested the benefits of using this tool, in the case of the OSPF configuration, in a network consisting of four routers.
- Published
- 2022
25. A NetConf Network Management Suite: ENSUITE
- Author
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Cridlig, Vincent, Abdelnur, H., Bourdellon, J., State, Radu, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Magedanz, Thomas, editor, Madeira, Edmundo R. M., editor, and Dini, Petre, editor
- Published
- 2005
- Full Text
- View/download PDF
26. OFaaS: OpenFlow Switch as a Service for Multi Tenant Slicing in SD-CDN
- Author
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Muge Erel-Ozcevik and Berk Canberk
- Subjects
NETCONF ,OpenFlow ,Service (systems architecture) ,Edge device ,Computer Networks and Communications ,business.industry ,computer.internet_protocol ,Computer science ,Software as a service ,Quality of service ,020206 networking & telecommunications ,Throughput ,02 engineering and technology ,Service level ,0202 electrical engineering, electronic engineering, information engineering ,Electrical and Electronic Engineering ,business ,computer ,Computer network - Abstract
In Software Defined-Content Delivery Networks (SD-CDN), the policies of tenants such as Youtube, Netflix, Office 365, etc. are not the same due to having different 5G traffic requirements for such contents as enhanced Mobile Broadband (eMBB), ultra-reliable low-latency (URLLC) and massive machine-type communication (mMTC). This leads SD-CDN multi-tenant slicing to provide different services with limited network resources, where each tenant can functionally manage their own virtual slice of a physical component according to service level agreements (SLAs). However, they are not permitted to dynamically configure their own components. Therefore, the physical end-to-end configuration of all edge devices causes extra hardware and bandwidth costs. Although software as a service (SaaS) is more preferred to handle cost-efficiency on a switch configuration that increases forwarding throughput (Mbps) with a less number of physical components in SD-CDN, the edge devices can be only served as infrastructure as a service (IaaS) currently. This motivation leads us to serve the switch as a service that includes both IaaS and SaaS characteristics. Therefore, we propose an OpenFlow as a service (OFaaS) design where each tenant has flow management and switch configuration permissions on their own virtual slice. In flow management, we define a novel Service Oriented Architecture (SOA) to orchestrate OFaaS driven topology by isolating each tenant from physical complexity. Here, each tenant can dynamically alter QoS on a flow and load balance between a sub-set of contents via OpenFlow protocol. In switch configuration; a novel OFaaS Management Algorithm for a multi-tenant slicing increases the number of tenants served per OpenFlow switch thanks to OFaaS design. It enables an end-to-end configuration via the NETCONF protocol with a novel YANG model of OFaaS. According to performance evaluation; OFaaS has the same forwarding throughput as conventional IaaS based OpenFlow switch for a homogenous content, whereas it has 71% more forwarding throughput (Mbps) and it has 40% more cost-efficient than conventional one for a heterogeneous content with $17 savings per tenant.
- Published
- 2021
27. SDN Augmented Network Management For Future Avionics Communications Network
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Doanh-Kim Luong, Muhammad Ali, Kanaan Abdo, Yim Fun Hu, and Rameez Asif
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NETCONF ,Network architecture ,business.industry ,computer.internet_protocol ,Network packet ,Computer science ,Simple Network Management Protocol ,Networking hardware ,Network management ,Forwarding plane ,business ,Software-defined networking ,computer ,Computer network - Abstract
The process of network management has always been complicated and challenging in traditional networks. Network operators in traditional networks have to cope with unavoidable constraints of low level vendor specific configurations to implement network policies on different networking devices from multiple vendors. Despite many previous proposals to make networks easier to manage, there were still several complicated and scalability issues remained unresolved particularly in scenarios where multivendor networking devices are deployed over large networks. This rigid behavior of vendor specific underlying infrastructure devices configuration and maintenance results in very few possibilities for innovation, enhancement, and improvement since the networking devices have generally been closed and proprietary. This lack of coherence in different vendor specific networking infrastructure devices was acting as a point of main hindrance in making the network management process a simple and easy to operate for network operators. The future avionics communications network being heterogeneous wireless communications network as presented in Future Communications Infrastructure (FCI) document also foresees similar network management issues.The paradigm of Software Defined Networking (SDN) proposes an effective way of tackling the issues in network management by separating the control and management plane from the data plane. The core idea of SDN is to keep networking devices i.e. switches and routers in the forwarding or data plane, responsible for simply forwarding data packets. A logically centralized software program i.e. SDN controller will be responsible of all the intelligent work of control plane operations. It also allows the network to be more flexible and programable. Using this paradigm, the SDN introduces new routes of innovations and opportunities for network management and configuration methods. In this paper an SDN based network management architecture is presented for future avionics communication network based on FCI. This paper also presents a comparison of network management process in traditional and SDN based architecture with the underlying configuration and management protocols i.e. SNMP, OF-Config, NetConf, RestConf and Yang model. The issues in the state-of-the-art network management such as configurations and scalability issues are highlighted with alternative solutions in SDN based architecture. The SDN based network management functions are applied to future avionics communications network architecture. Some example scenarios have also been demonstrated for network management functions such as configuration/reconfiguration of infrastructure layers devices using SDN controller with a global view of network.
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- 2021
28. SDN-Enabled THz wireless X-Haul for B5G
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Abraham Afriyie, Karasoula Eleni, Kritharidis Dimitrios, Eduardo Yusta Padilla, Chartsias Panteleimon Konstantinos, Jose Costa-Requena, Nicola Carapellese, Network Security and Trust, Department of Communications and Networking, Intracom Telecom, SIAE Microelettronica, Telefonica, Aalto-yliopisto, and Aalto University
- Subjects
NETCONF ,computer.internet_protocol ,Computer science ,business.industry ,Optoelectronics SDN ,Terahertz ,Broadband ,Network Automation ,7. Clean energy ,Software ,Open Interfaces ,Wireless broadband ,Computer architecture ,Wideband ,Cellular network ,Radio management ,Wireless ,Mobile telephony ,business ,computer ,5G ,Yang models - Abstract
Funding Information: The authors would like to thank the support and contributions from all colleagues from TERAWAY project. TERAWAY is EU funded project part of H2020 with grant No 871668 and it is an initiative of the Photonics Public Private Partnership. Publisher Copyright: © 2021 IEEE. | openaire: EC/H2020/871668/EU//TERAWAY With the explosive data growth of user traffic in wireless communications, Terahertz (THz) frequency band is envisioned as a promising candidate to support ultra-broadband for beyond fifth generation (5G) networks. Software based networking is being adopted in mobile communications to improve efficiency and reduce operational costs. This paper presents the design of a comprehensive SDN management architecture for joint optimization of radio and network resources. The proposed architecture obtains the most added value out of use of THz technology integrated with software managed networking for mobile network beyond 5G. In this paper, leveraging optical concepts and photonic integration techniques for an ultrawideband and broadband wireless system is presented.
- Published
- 2021
29. Packet Optical Transport Network Slicing with Hard and Soft Isolation
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Alejandro Alcala Alvarez, Juan Pedro Fernandez-Palacios, Ramon Casellas, Ricard Vilalta, Pol Alemany, Ricardo Martinez, Carlos Manso, Victor Lopez Alvarez, Luis Miguel Contreras Murillo, Oscar Gonzalez de Dios, Samier Barguil, Raul Munoz, Xufeng Liu, David Gonzalez-Perez, and Jose-Miguel Pulido
- Subjects
NETCONF ,Technology ,Dynamic network analysis ,network slicing ,computer.internet_protocol ,Computer science ,Software Defined Networking ,QH301-705.5 ,Distributed computing ,QC1-999 ,Transport network ,02 engineering and technology ,01 natural sciences ,L3VPN ,Optical Transport Network ,0202 electrical engineering, electronic engineering, information engineering ,General Materials Science ,Biology (General) ,Instrumentation ,QD1-999 ,Fluid Flow and Transfer Processes ,Network packet ,business.industry ,Process Chemistry and Technology ,Physics ,010401 analytical chemistry ,General Engineering ,020206 networking & telecommunications ,Engineering (General). Civil engineering (General) ,Automation ,0104 chemical sciences ,Computer Science Applications ,network automation ,Chemistry ,NO KEYWORDS ,TA1-2040 ,business ,Software-defined networking ,Communications protocol ,computer ,5G - Abstract
Network Operators has been dealing with the necessity of a dynamic network resources 2 allocation to provide a new generation of customer-tailored applications. In that sense, Telecom 3 providers have to migrate their BSS/OSS systems and network infrastructure to more modern 4 solutions to introduce end-to-end automation and support the new use cases derived from the 5 5G adoption and transport network slices. In general, there is a joint agreement on making this 6 transition to an architecture defined by programmable interfaces and standard protocols. Hence, 7 this paper uses the iFusion architecture to control and program the network infrastructure. The 8 work presents an experimental validation of the network slicing instantiation in an IP/Optical 9 environment using a set of standard protocols and interfaces. The work provides results of the 10 creation, modification and deletion of the network slices. Furthermore, it demonstrates the usage 11 of standard communication protocols (Netconf and Restconf) in combination with standard YANG 12 data models.
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- 2021
30. LiONv2: An Experimental Network Construction Tool Considering Disaggregation of Network Configuration and Device Configuration
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Yuki Nagai, Fumio Teraoka, Hiroki Watanabe, and Takao Kondo
- Subjects
NETCONF ,computer.internet_protocol ,business.industry ,Computer science ,Node (networking) ,Virtualization ,computer.software_genre ,Network topology ,Networking hardware ,Software deployment ,business ,computer ,Virtual network ,Protocol (object-oriented programming) ,Computer network - Abstract
An experimental network environment plays an important role to examine new systems and protocols. We have developed an experimental network construction tool called LiONv1 (Lightweight On-Demand Networking, ver.1). LiONv1 satisfies the following four requirements: programmer-friendly configuration file based on Infrastructure as Code, multiple virtualization technologies for virtual nodes, physical topology conscious virtual node placement, and L3 protocol agnostic virtual networks. None of existing experimental network environments satisfy all the four requirements. In this paper, we develop LiONv2 which satisfies three more requirements: diversity of available network devices, Internet-scale deployment, and disaggregation of network configuration and device configuration. LiONv2 employs NETCONF and YANG to achieve diversity of available network devices and Internet-scale deployment. LiONv2 also defines two YANG models which disaggregate network configuration and device configuration. LiONv2 is implemented in Go and C languages with public libraries for Go. Measurement results show that construction time of a virtual network is irrelevant to the number of virtual nodes if a single virtual node is created per physical node.
- Published
- 2021
31. Plataforma para la configuración y monitorización remota de redes TSN
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Vázquez, Víctor, Megías-Núñez, Carlos, Ros, Eduardo, and Díaz, Javier
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YANG ,Time-Sensitive Networking ,gPTP ,NETCONF - Abstract
En Time-Sensitive Networking (TSN), la configuración de la red es muy importante. Debe ser óptima para que ésta pueda cumplir con las restricciones impuestas por el dominio del problema, para lo que se necesita conocer toda la información posible de la misma. Además, el proceso de configuración es costoso, requiriendo el apagado de la red para la introducción de los nuevos parámetros. Las herramientas actuales no son suficientes para conseguir un modelo de configuración en línea debido a su heterogeneidad, que dificulta la monitorización y el trabajo con la red al completo. En este artículo, se presenta una arquitectura basada en estándares y tecnologías abiertas para la interacción con dispositivos TSN, mostrando un caso de uso concreto con la monitorización de la sincronización entre sistemas., El presente trabajo ha sido financiado en parte por la concesión RTI2018-096228-B-C3 del proyecto AMIGA-7.
- Published
- 2021
- Full Text
- View/download PDF
32. On Control and Data Plane Programmability for Data-Driven Networking
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Flavio Esposito, Alessio Sacco, and Guido Marchetto
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NETCONF ,control plane ,network programmability ,machine learning ,OpenFlow ,Process state ,business.industry ,computer.internet_protocol ,Computer science ,Distributed computing ,Automation ,Data-driven ,Network management ,Forwarding plane ,Process control ,business ,computer - Abstract
The soaring complexity of networks has led to more and more complex methods to manage and orchestrate efficiently the multitude of network environments. Several solutions exist, such as OpenFlow, NetConf, P4, DPDK, etc., that allow net-work programmability at both control and data plane level, driving innovation in many focused high-performance networked applications. However, with the increase of strict requirements in critical applications, also the networking architecture and its operations should be redesigned. In particular, recent advances in machine learning have opened new opportunities to the automation of network management, exploiting existing advances in software-defined infrastructures. We argue that the design of effective data-driven network management solutions needs to collect, merge, and process states from both data and control planes. This paper sheds light upon the benefits of utilizing such an approach to support feature extraction and data collection for network automation.
- Published
- 2021
33. Babel Information Model
- Author
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Mahesh Jethanandani and Barbara Stark
- Subjects
NETCONF ,business.industry ,computer.internet_protocol ,Programming language ,Computer science ,computer.software_genre ,Data modeling ,Information model ,The Internet ,Data mining ,State (computer science) ,business ,Protocol (object-oriented programming) ,computer - Abstract
This Babel Information Model can be used to create data models under various data modeling regimes (e.g., YANG). It allows a Babel implementation (via a management protocol such as netconf) to report on its current state and may allow some limited configuration of protocol constants.
- Published
- 2021
34. IPv6 Address Assignment and Management Mechanism for Heterogeneous Industrial Networks
- Author
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Dong Yang and Mingyu Wang
- Subjects
NETCONF ,021103 operations research ,IPv6 address ,Dynamic Host Configuration Protocol ,Computer science ,business.industry ,computer.internet_protocol ,Distributed computing ,020208 electrical & electronic engineering ,0211 other engineering and technologies ,02 engineering and technology ,IPv6 ,Server ,0202 electrical engineering, electronic engineering, information engineering ,The Internet ,Resource management ,business ,computer ,Heterogeneous network - Abstract
The new manufacturing production model puts forward the demand for the integration of industrial IT networks and OT networks. The proposal of TSN and DetNet standards makes it possible to converge IT and OT. In the future, TSN and DetNet will combine to become a new industrial network paradigm, making industrial heterogeneous networks a converged and interconnected IP-supporting network. Therefore, it is necessary to perform unified addressing on industrial heterogeneous networks to support indiscriminate addressing and communication between devices. Since DHCP is not suitable for industrial network scenarios, this paper proposes an IPv6 address assignment and management mechanism, which assigns specific IPv6 addresses to industrial network devices based on their characteristic information, and uses the NETCONF protocol to uniformly manage the configuration information during the address assignment process. The mechanism proposed in this paper assigns IPv6 addresses for industrial IP networks and non-IP networks uniformly, achieving IPv6-based undifferentiated addressing and laying a foundation for the seamless integration and fusion of industrial networks and the Internet.
- Published
- 2021
35. Advanced solution of SIP communication server with a new approach to management.
- Author
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Voznak, Miroslav, Slachta, Jiri, Macura, Lukas, and Tomala, Karel
- Subjects
SESSION Initiation Protocol (Computer network protocol) ,INTERNET servers ,EMBEDDED computer systems ,INTERNET telephony ,COMPUTER security - Abstract
The paper deals with the development of an advanced solution for a SIP communication server. Works were carried out within the scope of Bright Embedded Solution for IP Telephony (BESIP) project. The output of the project should be a modular architecture with additional functionality such as speech quality monitoring and security of IP telephony. We sought to unify the configuration of individual components based on the NETCONF protocol. In order to be able to implement the idea into OpenWrt, we had to integrate a complex support for the NETCONF configuration protocol. Our modifications of OpenWrt in respect of NETCONF were accepted by the OpenWrt community and have been included in OpenWrt/Trunk branch. The paper explains and describes the whole concept of the BESIP project and its individual modules. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
36. Hacia un entorno de código abierto para emular conjuntamente el plano de control y datos de redes ópticas desagregadas
- Author
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Pavón Mariño, Pablo, Garrich Alabarce, Miquel, Tecnologías de la Información y las Comunicaciones, Iglesias Castreño, Ignacio, Pavón Mariño, Pablo, Garrich Alabarce, Miquel, Tecnologías de la Información y las Comunicaciones, and Iglesias Castreño, Ignacio
- Published
- 2020
37. Software-Defined Networking in Access Networks: Opportunities, Challenges, and Choices.
- Author
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Chen Tian, Jie Wu, and Haibin Song
- Subjects
SOFTWARE-defined networking ,OPENFLOW (Computer network protocol) ,QUALITY of service ,TELECOMMUNICATION systems ,DIGITAL subscriber lines ,PASSIVE optical networks - Abstract
Software-Defined Networking proposes to fundamentally change the current practice of network control. The two basic ideas are Centralized State Control and Uniform Device Abstraction, which support the Software-Defined promise. SDN has made significant progress. The opportunities of SDN in carrier access networks have been largely ignored by both industry and academia. In access networks, Quality-of-Service (QoS) oriented bandwidth management is more critical; the flexible QoS provisioning could be the most important opportunity for SDN. In this position paper, the authors show that the unique characteristics of access networks pose significant challenges to the two basic ideas. Contrary to the common agreement on "match-action" abstraction, the authors argue that the object-oriented abstraction might be a better choice for access networks to make a better software-defined implementation. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
38. Automatización de redes informáticas con Python
- Author
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Conde Gil, Adrián Manuel and Mendoza Flores, Manuel Jesús
- Subjects
RESTCONF ,GNS3 ,networking ,automatización ,NETCONF ,Computer networks -- TFG ,xarxes ,YANG ,redes ,automatització ,computer networks ,Ordinadors, Xarxes d' -- TFG ,Redes de ordenador -- TFG ,Python ,automation - Abstract
Debido a la velocidad a la que la industria informática avanza, la tecnología que en un momento puede llegarse a considerar como innovadora, se puede convertir en obsoleta al poco tiempo. En cierto modo, se podría decir que, hasta hace pocos años, esto no era tan aplicable a la administración de redes informáticas, donde los conocimientos de diferentes protocolos de red, junto al manejo de la interfaz de línea de comandos (CLI) han sido más que suficientes. Sin embargo, debido al avance de la tecnología y a una cada vez mayor dependencia a Internet, donde incluso la interrupción más mínima del servicio puede provocar grandes pérdidas a la organización, los roles del administrador de redes se tornan obsoletos a la par que la provisión manual del servicio, así como la resolución de incidentes, se vuelven inviables cuando la velocidad es un factor crucial. Por lo que es de vital importancia que los profesionales adapten esta nueva metodología para adaptarse a las exigencias de la industria. Este cambio de paradigma no viene sin dificultades, debido a la irrupción de tantas herramientas nuevas, al final de las cuales solamente un conjunto de ellas se adopta en la industria. Debido a ello, este proyecto pretende realizar un análisis del contexto actual y sus precedentes, además de realizar una prueba de concepto a través de Python, el cual es el lenguaje de programación más utilizado en la actualidad para automatizar redes informáticas. Due to the speed at which computer industry progresses, technology which, at a due moment may be considered as state-ofthe-art, can as well be determined obsolete in a short span of time. This was, in some sense, not that appliable to computer network administration, where network protocol and command line interface (CLI) knowledge has been considered more than sufficient, until now. However, due to technological progress and an ever-increasing reliance on the Internet, where even the slightest service interruption can cause heavy economical losses to the organization, former network administrator roles are becoming obsolete as manual service provision and problem resolution are not feasible when speed is of vital importance. Due to this, it is crucial that network professionals adopt this new methodology to comply to industry needs. This paradigm shift does not come without its own difficulties, due to the emergence of many new tools, which, in the end, only a few of them are adopted by the industry. Therefore, this project aims to research the current context and its precedents, as well as to provide proof of concept through Python, which is currently the most widely industry supported programming language for network automation. A causa de la velocitat en que la indústria informàtica avança, la tecnologia que en un moment pot arribar-se a considerar com innovadora, es pot convertir en obsoleta en poc temps. En certa manera, es podria dir que, fins fa pocs anys, això no era tan aplicable a l'administració de xarxes informàtiques, on els coneixements de diferents protocols de xarxa, al costat de l'ús de la interfície de línia d'ordres (CLI) han estat més que suficients. No obstant això, a causa de l'avanç de la tecnologia hi ha una major dependència a Internet, on fins i tot la interrupció més mínima del servei pot provocar grans pèrdues a l'organització, els rols de l'administrador de xarxes es tornen obsolets igual que la provisió manual del servei, així com la resolució d'incidents, es tornen inviables quan la velocitat és un factor crucial. Pel que és de vital importància que els professionals s'adaptin a aquesta nova metodologia per adaptar-se a les exigències de la indústria. Aquest canvi de paradigma no ve sense dificultats, a causa de la irrupció de tantes eines noves, a la fi de les quals només un conjunt d'elles s'adopta en la indústria. A causa d'això, aquest projecte pretén realitzar una anàlisi de l'context actual i els seus precedents, a més de realitzar una prova de concepte a través de Python, el qual és el llenguatge de programació més utilitzat en l'actualitat per automatitzar xarxes informàtiques.
- Published
- 2021
39. Emulating software-defined disaggregated optical networks in a containerized framework
- Author
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Ignacio Iglesias-Castreño, Pablo Pavon-Marino, Safaa Zahir, F. J. Moreno-Muro, Miquel Garrich, Ministerio de Economía y Empresa, and Comisión Europea
- Subjects
NETCONF ,Optical network emulation ,Computer science ,computer.internet_protocol ,Distributed computing ,02 engineering and technology ,lcsh:Technology ,lcsh:Chemistry ,Software defined networking ,020210 optoelectronics & photonics ,Telecom infrastructure sharing ,0202 electrical engineering, electronic engineering, information engineering ,software defined networking ,General Materials Science ,Instrumentation ,Protocol (object-oriented programming) ,lcsh:QH301-705.5 ,Transponder ,Fluid Flow and Transfer Processes ,Ingeniería Telemática ,Emulation ,9. Industry and infrastructure ,lcsh:T ,Process Chemistry and Technology ,General Engineering ,020206 networking & telecommunications ,lcsh:QC1-999 ,Computer Science Applications ,disaggregated optical networks ,optical network emulation ,lcsh:Biology (General) ,lcsh:QD1-999 ,Software deployment ,lcsh:TA1-2040 ,Disaggregated optical networks ,Container (abstract data type) ,3325 Tecnología de las Telecomunicaciones ,Software-defined networking ,lcsh:Engineering (General). Civil engineering (General) ,computer ,lcsh:Physics - Abstract
Telecom operators’ infrastructure is undergoing high pressure to keep the pace with the traffic demand generated by the societal need of remote communications, bandwidth-hungry applications, and the fulfilment of 5G requirements. Software-defined networking (SDN) entered in scene decoupling the data-plane forwarding actions from the control-plane decisions, hence boosting network programmability and innovation. Optical networks are also capitalizing on SDN benefits jointly with a disaggregation trend that holds the promise of overcoming traditional vendor-locked island limitations. In this work, we present our framework for disaggregated optical networks that leverages on SDN and container-based management for a realistic emulation of deployment scenarios. Our proposal relies on Kubernetes for the containers’ control and management, while employing the NETCONF protocol for the interaction with the light-weight software entities, i.e., agents, which govern the emulated optical devices. Remarkably, our agents’ structure relies on components that offer high versatility for accommodating the wide variety of components and systems in the optical domain. We showcase our proposal with the emulation of an 18-node European topology employing Cassini-compliant optical models, i.e., a state-of-the-art optical transponder proposed in the Telecom Infrastructure Project. The combination of our versatile framework based on containerized entities, the automatic creation of agents and the optical-layer characteristics represents a novel approach suitable for operationally complex carrier-grade transport infrastructure with SDN-based disaggregated optical systems. This research was funded Spanish Government: ONOFRE-2 project under Grant TEC2017-84423-C3-2-P (MINECO/AEI/FEDER, UE) and the Go2Edge project under Grant RED2018-102585-T; and by the European Commission: METRO-HAUL project (G.A. 761727).
- Published
- 2021
40. 'Leveraging Raspberry Pi as a server for the integration of the NETCONF protocol within IoT systems based on YANG'
- Author
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Slobodan Lubura and Dalibor Đumić
- Subjects
Raspberry pi ,NETCONF ,Computer science ,computer.internet_protocol ,business.industry ,Internet of Things ,business ,computer ,Protocol (object-oriented programming) ,Computer network - Abstract
Herein the idea of leveraging Raspberry Pi as a server for the integration of an incipient network management protocol, the Network Configuration Protocol (NETCONF), within IoT systems based on YANG is presented. The practical realization of this idea requires the implementation of the NETCONF protocol together with REpresentational State Transfer web services (RESTful). Such an interesting and innovative practical realization like this opens new additional possibilities in domotics systems and these possibilities will be discussed in this paper.
- Published
- 2021
41. An SDN Emulation Platform for Converged Fiber-Wireless 5G Networks
- Author
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A. Kretsis, P. Soumplis, Emmanouel Varvarigos, and P. Kokkinos
- Subjects
NETCONF ,Emulation ,business.industry ,Computer science ,computer.internet_protocol ,Fiber (computer science) ,Networking hardware ,Network planning and design ,Wireless ,business ,computer ,Protocol (object-oriented programming) ,5G ,Computer network - Abstract
The design and operation of any network are complex processes that require the evaluation, utilization and configuration of a variety of usually expensive network devices. Through the use of an emulation platform, network operators are able to examine different scenarios and network parameters and benefit from multi-objective decision mechanisms. These enable the decrease of the network design phase duration and the optimal operation of the network under different well examined conditions. In this work, we present an emulation platform for SDN-enabled 5G integrated Fiber-Wireless networks that provides a transparent view of the 5G infrastructure to any SDN-based control plane. We present the overall architecture and design of the emulator, along with the implementation details of its main components. Network devices are described through YANG models and are emulated using containerized processes, configured and managed through the Network Configuration (NETCONF) protocol. Finally, a number of emulation scenarios are described and evaluated, utilizing a joint fiber and wireless resource allocation algorithm that drives the SDN-enabled devices.
- Published
- 2021
- Full Text
- View/download PDF
42. Experimental evaluation of control and monitoring protocols for optical SDN networks and equipment [Invited Tutorial]
- Author
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Takehiro Tsuritani, Itsuro Morita, Ricardo Martinez, Ramon Casellas, Raul Munoz, Carlos Manso, Ricard Vilalta, and Noboru Yoshikane
- Subjects
NETCONF ,Monitoring ,Computer Networks and Communications ,computer.internet_protocol ,Computer science ,Optical control ,Latency (audio) ,02 engineering and technology ,Network topology ,01 natural sciences ,Topology ,Data modeling ,010309 optics ,020210 optoelectronics & photonics ,Optical fiber networks ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Optical networking ,Overhead (computing) ,business.industry ,Data models ,Networking hardware ,Communications protocol ,business ,computer ,Protocols ,Computer network - Abstract
This paper presents an experimental evaluation of network protocols for control and management of optical networks and optical network equipment as seen in current trends. This paper presents the YANG data modeling language and its associated RESTCONF/NETCONF protocols. Later, it details multiple data models used in optical networks, such as IETF TEAS, ONF Transport API, OpenROADM, and OpenConfig. It also presents multiple protocols for telemetry (i.e., YANG PUSH, gRPC, and gNMI). Later, a zero-touch SDN controller architecture for multiple standard-defining organizations (SDOs) is presented, to support the usage of multiple protocols in a zero-touch optical network. Finally, the presented protocol implementations are experimentally evaluated and compared in terms of latency and overhead. The paper explores the use of these protocols (e.g., in research, demonstrations, and open-source optical networking projects) and provides results and recommendations for their integration in equipment and networks.
- Published
- 2021
- Full Text
- View/download PDF
43. Interoperability Test of NETCONF Capabilities
- Author
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D. Valencic and V. Pupovac
- Subjects
Routing protocol ,NETCONF ,computer.internet_protocol ,Computer science ,business.industry ,interoperability ,SDN ,network programmability ,automation ,Interoperability ,Networking hardware ,Server ,Software-defined networking ,business ,Virtual network ,computer ,Protocol (object-oriented programming) ,Computer network - Abstract
NETCONF is an important component of SDN (Software Defined Networking) architecture (as defined in RFC 7426) and network programmability and automation. ETF has defined the NETCONF (Network Configuration Protocol) standard in RFC 4741 in December 2006 and improved it in June 2011 in RFC 6241 (which is the currently active standard). NETCONF was created based on the requests of the network operators (defined in RFC 3535 in June 2002) for a standard protocol for the configuration of network devices. NETCONF defines the mechanisms of installing, manipulating, and deleting the network device configurations. NETCONF uses RPC messages, SSH for the transfer of messages between the server and the client ; it has its defined set of operations and it uses YANG for data modelling. NETCONF defines the initial basic set of operations and additional capabilities. Capabilities are additional functions of the NETCONF device (of client and server) that may but do not have to be implemented by the network devices. In this paper will be shown an overview of the capabilities of NETCONF protocol. The objective of this paper is to present the results of the interoperability lab where the support for NETCONF capabilities have been tested on router/switch (R/S) devices of major network equipment manufacturers. This paper describes the test environment and how the laboratory testing of the NETCONF capabilities of virtual network R/S devices was performed.
- Published
- 2021
44. Embedded multiplatform SIP server solution.
- Author
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Macura, Lukas, Voznak, Miroslav, Tomala, Karel, and Slachta, Jiri
- Abstract
This paper describes BESIP (Bright Embedded Solution for IP Telephony) project. It was developed by LipTel team supported by CESNET. Primary goal was to implement multiplatform embedded SIP communication server with unified configuration interface. The paper explains and describes the whole concept and individual modules, acquaints with the current state and with the future intents. SIP server is based on OpenWRT project core and, there is Asterisk and Kamailio inside as SIP engines. Kamailio was selected for security and reliability, Asterisk for PBX functions. Next to this, there is Web frontend for managing device, Kamailio and Asterisk. Last, but very important part, is NETCONF server which is part of image for unified management. [ABSTRACT FROM PUBLISHER]
- Published
- 2012
- Full Text
- View/download PDF
45. NETCONF agent for link state monitoring.
- Author
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Loureiro, Diogo, Goncalves, Pedro, and Nogueira, Antonio
- Abstract
Fault detection mechanisms have a major importance for network managers, allowing them to respond to system failures by resolving or mitigating their effects. Network and system management technologies should include fault detection mechanisms. NETCONF is a new technology that includes monitoring capabilities and defines a fault-detection mechanism based on sending notifications. This paper documents the development of a NETCONF agent for link-state monitoring and analyzes/evaluates the most important features and capabilities of this management protocol. Additionally, it also analyzes the encoding of the monitoring messages that is performed by NETCONF and evaluates the amount of overhead introduced by the gSOAP API. [ABSTRACT FROM PUBLISHER]
- Published
- 2012
- Full Text
- View/download PDF
46. Towards Semantic Web Services-based Network Configuration Management.
- Author
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Ziheng Liu, Chengling Zhao, Yanfeng Wang, and Hui Xu
- Subjects
SEMANTIC Web ,WEB services ,CONFIGURATION management ,INTERNET protocols ,INTERNET - Abstract
As the Internet continue to grow, the tasks of configuration management for IP network devices are becoming more and more difficult. Over the past few years, much effort has been given to improve the deficiency of SNMP in configuration management scope, only few have succeeded to be standardized, the famous one of which is Netconf developed by the IETF. Even the Netconf is still far from its aim to implement the automation of the network configuration. These days, Semantic Web services have become a promising technology and it seems that it may be used in configuration management scope. This paper first analyzes the Netconf approach and a promising Semantic Web services-based approach to configuration management for IP network devices is then introduced in the paper. To realize Semantic Web services-based configuration management, this paper provides the application of OWL-S, a semantic markup for Web services. [ABSTRACT FROM AUTHOR]
- Published
- 2008
47. GENERATING SKELETON CODE FOR NETCONF MODULES FROM SMI MIB MODULE DEFINITIONS.
- Author
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Klie, Torsten
- Subjects
SIMPLE Network Management Protocol (Computer network protocol) ,COMPUTER network protocols ,DATA transmission systems ,MANAGEMENT information systems - Abstract
Configuring network devices with the Simple Network Management Protocol (SNMP) has several drawbacks. Within the IETF, a new configuration protocol is being designed: NETCONF. NETCONF offers an XML based encoding and operations to install, to manipulate, and to delete configurations of network devices. Currently there are no standard data models for NETCONF comparable to those defined in SMI MIB modules within the SNMP framework. With Yenca from Madynes (Inria, France), a modular implementation of the (not yet standardized) protocol is available. This paper presents an approach of automatic generation of skeleton code for Yenca NETCONF modules from existing SMI MIB definitions. [ABSTRACT FROM AUTHOR]
- Published
- 2005
48. Secure Topology Detection in Software-Defined Networking with Network Configuration Protocol and Link Layer Discovery Protocol
- Author
-
Petar Cvjetkovic, Branislav M. Todorovic, Srdjan Popic, and Maksim Vuleta
- Subjects
Link Layer Discovery Protocol ,NETCONF ,computer.internet_protocol ,Computer science ,Network packet ,02 engineering and technology ,Network topology ,Topology ,01 natural sciences ,010309 optics ,020210 optoelectronics & photonics ,Network interface controller ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Forwarding plane ,Routing control plane ,Software-defined networking ,computer - Abstract
The security concerns are a very important aspect of the Software-Defined Networking (SDN) concept since the security is not a built-in feature in the architecture. The decoupling of the data plane from the control plane has created completely new loopholes specific to the SDN. Using Link Layer Discovery Protocol (LLDP) for topology detection in SDN brings some of these new specific vulnerabilities, such as link discovery attack in the southbound interface. The problem concerns every implementation that uses the LLDP-like packets for link discovery. Network Configuration Protocol (NETCONF) together with YANG (yet another new generation) modeling language, used as a southbound interface (SBI) in the SDN can help to defend off this attack. This paper proposes the specific usage of NETCONF protocol and modeling abilities of the YANG language. The given enhancement will enable the network controller to recognize the link discovery attack threats.
- Published
- 2020
49. Bringing deterministic industrial networking to the W3C web of things with TSN and OPC UA
- Author
-
Sushmit Bhattacharjee, Matthias Kovatsch, Luca Sciullo, Sciullo L., Bhattacharjee S., and Kovatsch M.
- Subjects
protocol binding ,NETCONF ,Ethernet ,IoT ,Computer science ,computer.internet_protocol ,02 engineering and technology ,01 natural sciences ,Web of Things ,WoT ,0202 electrical engineering, electronic engineering, information engineering ,IIoT ,Protocol (object-oriented programming) ,OPC UA ,TSN ,industrial network ,business.industry ,Quality of service ,010401 analytical chemistry ,020206 networking & telecommunications ,EtherCAT ,0104 chemical sciences ,FLC ,PROFINET ,deterministic networking ,ethernet ,Industrial Ethernet ,W3C ,business ,computer ,Computer network - Abstract
IoT is often associated with low-power wireless, where best-effort communication is sufficient for many of its applications. Yet, in particular in Industrial IoT, strict quality of service (QoS) guarantees are required to enable deterministic real-time applications. Hence, wired communications are still predominant here, with Ethernet having become the main media for the industrial fieldbuses such as PROFINET, EtherCAT, or the emerging Field-Level Communications (FLC) of OPC UA. With the addition of Time-Sensitive Networking (TSN), an IEEE standards family for deterministic networking over Ethernet, Information Technology (IT) and Operational Technology (OT) can converge even at the shopfloor, as TSN-enabled Ethernet allows for several traffic types to co-exist in the same network. This paper proposes an extension to the W3C Web of Things (WoT) for semantics-enabled connectivity, which allows to cover application QoS requirements and network configuration within the W3C WoT abstractions. We contribute a QoS vocabulary for the W3C WoT Thing Description as well as design and open-source implementation of protocol bindings for OPC UA and NETCONF. Moreover, we discuss the challenges and pitfalls when designing new protocol bindings for W3C WoT.
- Published
- 2020
50. Hacia un entorno de código abierto para emular conjuntamente el plano de control y datos de redes ópticas desagregadas
- Author
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Iglesias Castreño, Ignacio, Pavón Mariño, Pablo, Garrich Alabarce, Miquel, and Tecnologías de la Información y las Comunicaciones
- Subjects
SDN ,agentes de software ,Ingeniería Telemática ,SDON ,redes ópticas ,Cassini ,3325 Tecnología de las Telecomunicaciones ,optics networks ,OpenConfig ,ONOS ,NETCONF ,Sysrepo ,Netopeer2 - Abstract
Escuela Técnica Superior de Ingeniería de Telecomunicación Universidad Politécnica de Cartagena
- Published
- 2020
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