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Information and communication industry (ICT) is primarily based on two aspects that are computation and network. In past few decades there is huge improvement in data processing technology with development of processors, but networks are not converged so far. For implementing industry 4.0, in which large number of IoT devices will be sharing the data with each other making true machine to machine communication. Management of these devices is not suitable as current network provide distributed management resulting congestion because of poor resource management. This project suggests use of Software Defined Network (SDN) approach, it separates Control and data plane of network devices. This separation will provide more agility, stability and cost reduction. Various protocols like OpenFlow and NetConf are used for discovery and configuration of remote devices. Centralize management is achieved using controller, improving monitoring, diagnosis and reconfiguration.

Network infrastructure both intra and inter datacenter continues to increase in scale with the growing demand for bandwidth and the target performance goals for 5G networks. However the scalability of current Dense Wavelength Division Multiplexing (DWDM) systems is threatened by poor control system flexibility, requiring progressively more complex management systems as optical network infrastructure expands. It is therefore important to have software systems that are capable of managing such networks very efficiently on a large scale. The ability to use tunable wavelength optical transceivers in a DWDM network greatly improves its flexibility and bandwidth efficiency. This paper details the creation of a software system capable of controlling tunable optical transceivers using the network configuration protocol NETCONF and its associated data model, Yet Another Next Generation (YANG). This approach can be beneficial versus other configuration protocols such as OpenFlow, as it can be implemented without disrupting existing routes in the network. The YANG module developed is capable of controlling the wavelength of tunable transceivers. This is a new method of interacting with these transceivers in a Software Defined Network (SDN). The addition of another south-bound API allows for greater flexibility in an SDN DWDM network. The system developed can successfully tune the wavelength of the transceivers via NETCONF with the results verified using optical spectrum analysis.

One particular challenge in the Internet of Things is the management of many heterogeneous things. The things are typically constrained devices with limited memory, power, network and processing capacity. Configuring every device manually is a tedious task. We propose an interoperable way to configure an IoT network automatically using existing standards. The proposed NETCONF-MQTT bridge intermediates between the constrained devices (speaking MQTT) and the network management standard NETCONF. The NETCONF-MQTT bridge generates dynamically YANG data models from the semantic description of the device capabilities based on the oneM2M ontology. We evaluate the approach for two use cases, i.e. describing an actuator and a sensor scenario.

Internet of Things (IoT) is a paradigm where devices are connected to the Internet and can interact with them, performing a machine-to-machine (M2M) communication. One of the challenges of IoT is related to the heterogeneity of devices given their different characteristics, like processing capacity and communication technologies. It demands a dynamic and a context-aware configuration management system that meets the requirements of the networks and their various functionalities. This paper focuses on the performance evaluation of the simple network management protocol (SNMP) and NETCONF in a real environment using an IoT-based smart lighting system. Among the available IoT network management open source platforms, OpenDayLight was chosen because it supports both SNMP and NETCONF. The following performance metrics are used: average response time, user request errors, throughput, and data rate. It was observed that NETCONF performs better than SNMP in the studied scenario. It was concluded that NETCONF becomes more viable in a scenario that requires high IoT network management traffic (non-real time) because it takes less time to get response messages with higher throughput. But in a scenario that needs real-time management and energy savings, SNMP performs better because its frames contain fewer bytes than NETCONF turning it a more straightforward protocol.

We demonstrate the first SDN-enabled sliceable SDM-WDM transceiver providing multiple spectral-spatial super-channels spanning different cores and modes over a 11-km 6-mode 19-core fiber. We define an open API based on YANG/NETCONF for disaggregated optical networks., Grant numbers : Work supported by the Spanish DESTELLO (TEC2015-69256-R) projects.© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Datastores are a fundamental concept binding the data models written in the YANG data modeling language to network management protocols such as the Network Configuration Protocol (NETCONF) and RESTCONF. This document defines an architectural framework for datastores based on the experience gained with the initial simpler model, addressing requirements that were not well supported in the initial model. This document updates RFC 7950.

The standardization of network configuration interfaces for use with the Network Configuration Protocol (NETCONF) or the RESTCONF protocol requires a structured and secure operating environment that promotes human usability and multi-vendor interoperability. There is a need for standard mechanisms to restrict NETCONF or RESTCONF protocol access for particular users to a preconfigured subset of all available NETCONF or RESTCONF protocol operations and content. This document defines such an access control model. This document obsoletes RFC 6536.

Disaggregated optical technologies have the potential to provide cost-effective and vendor-neutral optical node solutions especially suitable for metro networks. Differently from the conventional proprietary networks, specific design, modelling, control and management operations have to be carefully defined and standardized. This paper first presents the most relevant disaggregated optical devices such as transponders, reconfigurable optical add-drop multiplexers (ROADMs), and amplifiers, and it discusses the corresponding vendor-neutral YANG models and NETCONF control. Then, the implementation of the related software agents is presented, along with a Software Defined Networking (SDN) controller based on the ONOS open-source framework. The implementations are validated in a disaggregated optical network testbed, showing successful interoperability and experimentally demonstrating transmission with optical power configurations.

White boxes, originally introduced in data centers, are expected to soon also penetrate the market of wide area networks, since operators see them as a way to drive down capital expenditure. Indeed, white boxes can be composed of modules from different vendors, removing the traditional vendor lock-in and creating more competition in the market, thus reducing hardware costs. In this paper, we describe the experimental demonstration of a fully disaggregated white box, composed of two different types of transponders, monitors (including filtering effect parameter monitors), add-drop multiplexers, and switches. Toward this end, we developed an appropriate control and management plane for the white box based on NETCONF and YANG. Using that, we demonstrated the automatic reconfiguration of the white box so as to maintain the service in the presence of multiple unexpected degradations: signal-to-noise ratio decrease and filtering distortion. We also demonstrated and presented here a vendor-neutral procedure to compute the thresholds used for raising alarms in response to physical layer degradations.

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 centralization and pooling of baseband processing elements, with the scope of increasing resource utilization efficiency and air-interface performance gains with fast scaling multi-cell coordination. In this paper we focus on proposing and evaluating a flexible low-latency cross-connect (XC) switch that allows a dynamic scheduling of networking resources between baseband units (BBUs) and remote radio heads (RRHs) in C-RAN deployments. On the one hand, we develop a control plane mechanism for manipulating the XC configuration and state data based on a custom YANG model and Network Configuration (NTCONF) protocol. Using a standard open NETCONF interface, automation of heterogeneous C-RAN resource assignment can be facilitated for 5G architectures. Secondly, we evaluate the performance of our XC in relation to the C-RAN stringent requirements and show that the latency and jitter introduced have negligible influence compared to radio interface limits. The impact of switching delay on the performance of a live system has yet to be tested however, a measured average switching time of 252 ms could still disrupt the ongoing connections.

The creation of a truly dynamic transportation platform tailored for a Metro network is elaborated. The dynamic data-plane exploits PON technology while the dynamic control-plane is SDN-enabled using OpenFlow/Netconf; the dynamic operation of the platform is demonstrated on a testbed.

Internet of things (IoT) is surrounded by heterogeneous entities such as sensors, mobile devices and actuators in a constrained environment which are running on very low power and lossy networks. These entities are also of very small memory and can handle small computational overhead. To this end, complete IoT system and different devices which are working in home network management system will be presented in this paper. Applications for home network are considered under different architectures and their designs are discussed. Conventional simple network management protocol (SNMP) is generally applied for network management but it is not optimal due to lack of flexibility in configuring devices and lack of capabilities in managing operations in an IoT network. A design of smart washing machine device using the IoT design methodology is being discussed using network configuration protocol (NETCONF) and yet another next generation (YANG) data modeling language to illustrate how it would be a better alternative for managing home network.

In Associative Classification, building a classifier based on Class Association Rules (CARs) consists in finding an ordered CAR list by applying a rule ordering strategy, and selecting a satisfaction mechanism to determine the class of unseen transactions. In this paper, we introduce four novel hybrid rule ordering strategies; the first three combine the Netconf measure with different Support-Confidence based rule ordering strategies. The fourth strategy combines the Netconf measure with a rule ordering strategy based on the CAR's size. Additionally, we combine the proposed strategies with a novel "Dynamic K" satisfaction mechanism. Experiments over several datasets show that the proposed rule ordering strategies jointly with the "Dynamic K" satisfaction mechanism allow improving the performance of CAR-based classifiers.

In this paper, we described basic characteristics of NETCONF protocol, YANG language for modeling and environment for implementing the YANG module. A way to choose or create YANG module and process of its implementation using specific environment is also described. Explanation of communication process between server, client and data storage of the network device configurations is provided. All sections mentioned above are described using YANG module implementation.

Fog Computing is about to tremendously impact the industrial automation industry. While, today's industrial automation systems use proprietary technology to provide real-time and dependability guarantees, Fog Computing enables a paradigm shift from this proprietary operations technology (OT) to the usage of standard IT equipment and infrastructure. Thus, Fog Computing is one of the key elements of the Industrial Internet of Things and Industry 4.0. In particular, future Fog Computing will be enabled by: the increased usage of IP-protocols, e.g., standardized Deterministic Ethernet solutions from IEEE Time-Sensitive Networking (TSN) Task Group, upcoming 5G wireless standards, and interoperability standards such as OPC Unified Architecture (OPC UA). In this paper, we address the runtime reconfiguration of TSN-based Fog Computing platforms. We assume that the Fog Computing platform is composed of several heterogeneous Fog Nodes interconnected using TSN. The applications consist of hard real-time control tasks, which have strict timing requirements expressed as hard deadlines. For time-critical traffic, TSN uses the scheduled traffic type, which relies on Gate-Control Lists (GCLs) at each outgoing port of a network switch to decide the transmission of scheduled frames. We propose a heuristic algorithm to determine the GCLs at runtime such that the deadlines are satisfied and the queue usage is minimized, to accommodate non-critical traffic. The scheduling algorithm is part of a configuration agent that reacts to network changes and reconfigures the GCLs using the NETCONF network configuration protocol. Our experimental evaluation shows that the scheduling heuristic is able to quickly find good-quality GCLs.

Distributed Denial of Service (DDoS) attack has been bringing serious security concerns on banks, finance incorporation, public institutions, and data centers. Also, the emerging wave of Internet of Things (IoT) raises new concerns on the smart devices. Software Defined Networking (SDN) and Network Functions Virtualization (NFV) have provided a new paradigm for network security. In this paper, we propose a new method to efficiently prevent DDoS attacks, based on a SDN/NFV framework. To resolve the problem that normal packets are blocked due to the inspection on suspicious packets, we developed a threshold-based method that provides a client with an efficient, fast DDoS attack mitigation. In addition, we use open source code to develop the security functions in order to implement our solution for SDN-based network security functions. The source code is based on NETCONF protocol [1] and YANG Data Model [2].

Trusted routing is a hot spot in network security. Lots of efforts have been made on trusted routing validation for Interior Gateway Protocols (IGP), e.g., using Public Key Infrastructure (PKI) to enhance the security of protocols, or routing monitoring systems. However, the former is limited by further deployment in the practical Internet, the latter depends on a complete, accurate, and fresh knowledge base–this is still a big challenge (Internet Service Providers (ISPs) are not willing to leak their routing policies). In this paper, inspired by the idea of centrally controlling in Software Defined Network (SDN), we propose a CENtrally Trusted Routing vAlidation framework, named CENTRA, which can automated collect routing information, centrally detect anomaly and deliver secure routing policy. We implement the proposed framework using NETCONF as the communication protocol and YANG as the data model. The experimental results reveal that CENTRA can detect and block anomalous routing in real time. Comparing to existing secure routing mechanism, CENTRA improves the detection efficiency and real-time significantly.

SDN technology has been applied to a range of different networks, ranging from Ethernet services to large cloud environments. More recently, interest has turned towards extending programmability of Optical Transport Networks (OTN). In the SDN architecture, SBIs are used to communicate between the SDN controller and the switches or routers in the network. In this paper, we deploy OpenFlow and NETCONF as SBIs in managing BoD across interconnected data centers over OTN. More specifically, we use these protocols to communicate between an OpenDayLight controller and two BTI7800 network elements that interconnect the data centers. We present experimental results for both BTI's YANG-based NETCONF implementation and our port of OpenFlow for a number of use cases. Our results show that NETCONF is faster and requires fewer control message. However, OpenFlow offers better bandwidth utilization over the interconnecting link.

We experimentally demonstrate the integration of 100-200Gb/s data plane with NETCONF agents, SDN-controllers, and management plane exploiting monitoring and QoT estimations. We report on successful experiments for provisioning and reliability in single- and multi-domains.

Configuration processes of real-time networks are costly both in terms of time and engineering effort and require the system to be shutdown during the reconfiguration phase thus resulting in significant down time as well. The convergence of IT/OT technologies is bringing a whole world of possibilities for the configuration and management of real-time networks for the automation industry. With software defined networking (SDN) features like the separation of the data and control plane and standards like IEEE 802.1 developed with the goal of adding deterministic capabilities to traditionally dynamic switched Ethernet networks, the plug and play paradigm is almost around the corner. In this paper, we go one step further and start looking into the self-configuration of real-time networks. To achieve that we propose to introduce a Configuration Agent in the network, an entity that continuously monitors the network to detect changes and automatically update the configuration to adapt to such changes while maintaining desired quality of service. We present here the complete framework for the Configuration Agent that will provide self-configuration capabilities to real-time networks. The proposed framework has IEEE 802.1 as its core, but also shows how the set of standards need to be extended in order to achieve the self-configuration requirements. Concretely we examine the role of existing communication protocols like NETCONF and OPC-UA and propose the essential ingredients (managed objects) for a YANG model for the learning aspects in the bridges, including different working modes.

This paper presents an experimental design/approach that allows the standardized management protocol NETCONF to handle dynamically changing networks found in the IoT and Home-Networking domain.Management of such networks is challenging, because they usually grow out of spontaneous device assemblies, rather than an engineering blueprint. Network membership may be highly dynamic and the devices might only possess very limited computation and communication budgets.It is our goal to develop methods and strategies for automatic device discovery and configuration maintenance in such networks. In our experiment we dynamically generate YANG data models and NETCONF RPCs from device profiles written in JSON and map these to configuration commands in the lightweight MQTT protocol.

Software Defined Networking (SDN) application development is a novel field that has emerged in the context of SDN. This new networking paradigm is intended to mitigate limitations that appeared in traditional networks, such as vendor dependency, complexity or the lack of agility. It gradually migrated through several types of networks, beginning from campus networks, to data centers, transport networks or even Internet exchange points. The SDN ecosystem is expanding, from the SDN controller perspective and both southbound and northbound, including the development of applications. This paper introduces part of the work that was done for the third Wireless Transport SDN Proof of Concept (PoC). The purpose of the PoC was demonstrating the utility of a common information model that would represent a wireless transport device, to be used for its management and configuration in the context of SDN. A simulator consisting of a NETCONF server implementation, that would emulate the management interface of a network element but only return default values for its corresponding YANG attributes (Default Values Mediator — DVM) was realized using the OpenYuma software framework. This eased the development and testing of SDN applications that were proposed and implemented for the use cases of the PoC.

Among the different options to instantiate overlays, the Locator/ID Separation Protocol (LISP) [7] has gained significant traction among industry and academia [5], [6], [8]–[11], [14], [15]. Interestingly, LISP offers a standard, inter-domain, and dynamic overlay that enables low capital expenditure (CAPEX) innovation at the network layer [8]. LISP follows a map-and-encap approach where overlay identifiers are mapped to underlay locators. Overlay traffic is encapsulated into locator-based packets and routed through the underlay. LISP leverages a public database to store overlay-to-underlay mappings and on a pull mechanism to retrieve those mappings on demand from the data plane. Therefore, LISP effectively decouples the control and data planes, since control plane policies are pushed to the database rather than to the data plane. Forwarding elements reflect control policies on the data plane by pulling them from the database. In that sense, LISP can be used as an SDN southbound protocol to enable programmable overlay networks [5].

Računalništvo, ki je vse bolj samopostrežno naravnano, od storitev zahteva, da se prilagajajo uporabniku. S tem so se spremenile tudi zahteve za upravljanje in nastavljanje omrežne infrastrukture. Upravljalci so zaradi pogostih sprememb v omrežjih postavljeni pred izziv, kako čimbolj učinkovito preiti na programsko upravljanje računalniških omrežij in storitev. V magistrskem delu smo preučili področje upravljanja in nastavljanja računalniških omrežij in storitev. Pri tem se osredotočili na pristope k upravljanju, protokole za upravljanje omrežnih elementov ter jezike za modeliranje podatkov o njihovih nastavitvah in operativnem stanju. Raziskali smo obstoječe rešitve za upravljanje in jih razdelili v štiri skupine. Za vpeljavo programskega upravljanja ter nastavljanja omrežnih naprav in storitev smo predlagali arhitekturo enovite infrastrukture. Arhitekturo smo implementirali in preizkusili na laboratorijskem omrežju. Na dveh primerih, s katerima se srečujejo upravljalci omrežij, smo demonstrirali uporabnost predlagane infrastrukture za nastavljanje omrežnih naprav in storitev ter za avtomatsko odzivanje na težave v omrežju. Today computer landscape is service orientated and services need to adapt to user’s wishes. This has also changed the requirements for management and configuration of the network infrastructure. Due to frequent changes in the network operators are faced with the challenge of how to most effectively implement programmatic management of computer networks and services. In this master thesis, we studied management and configuration of computer networks and services. We put emphasis on different approaches and protocols for managing network elements and languages used to model their configuration and operating state. We surveyed existing solutions for network management and placed them into four groups. We proposed architecture for uniform network device and service management and configuration. We implemented and tested proposed architecture in our laboratory test bed network. We used two common use cases network managers face today to demonstrate its usefulness. In doing so we showed how network devices and services could be configured and how problems in the network could be remediated using the proposed uniform infrastructure.

Chapter 7 introduces new technology models which have become important in the realm of SDN in the last few years, examining new uses of protocols, new controller models, and new application emphases. In the area of protocols, we examine the use of NETCONF, originally used only for network management, as a mechanism for implementing SDN-based control of the network. We also examine the use of BGP, BGP-LS, and PCE-P to implement routing changes in a dynamic manner. New controllers such as ONOS and OpenDaylight have come to dominate many, if not most, SDN controller discussions, and we examine the capabilities and strengths of each. Early SDN applications often involved reactive OpenFlow responses to PACKET_IN events handled by internal SDN applications, but recent real-world SDN needs have increased interest in external, proactive applications.

We demonstrate a software-defined reconfigurable VCSEL-based transponder for intra-data centers. NETCONF messages are reported for control and management in uncooled and cooled scenarios together with performance at varying environment conditions.

Chapter 6 commences with an inventory of the drawbacks most commonly cited about Open SDN. For each, we attempt to assess whether there are reasonable means to address these drawbacks. In some cases, some of the disadvantages of Open SDN have been addressed by proposed alternative SDN solutions that do not exhibit these flaws. In Chapter 6 we provide details of the two alternative SDN approaches we introduced in Chapter 4, SDN via Existing APIs and SDN via Hypervisor-Based Overlays. We go deeper in our examination of SDN via Existing APIs, as this particular category of SDN has increased in importance in the past few years, pulling in protocols such as NETCONF and the new BGP-LS/PCE-P plug-in for OpenDayliglht. In addition, we introduce a third alternative, SDN via Opening up the Device. We discuss another class of networking solutions, known collectively as Network Functions Virtualization (NFV). NFV is frequently associated with SDN, but it is distinct and should not be considered as yet another SDN alternative. There is overlap, though, between SDN and NFV, which we explain in this chapter. We offer a reasonably objective means of evaluating to what degree each of these alternatives is a true SDN solution. Some of the criteria that we use are the five fundamental traits of Open SDN that we defined in earlier chapters. To make this ranking mechanism fairer, we include whether each alternative suffers the same drawbacks as those of Open SDN. Admittedly, this remains a bit subjective, as our litmus test is not absolute. The ranking is made somewhat more difficult because of a lack of agreement in the industry about the exact definitions of the alternate categories and by the fact that in some cases, the different alternatives overlap. Without providing any absolute judgment about winners or losers, our hope is that this SDN report card will help others make decisions about which, if any, SDN technology is appropriate for their needs.

Chapter 4 begins with a detailed explanation of the five fundamental traits of SDN we introduced in Chapter 3. We define the term Open SDN to mean an SDN network based on these five fundamental traits, based on the OpenFlow protocol. We then provide a high-level overview of the operation of an SDN network based on these traits. While this overview is generic, it is motivated by the principles behind OpenFlow. This overview includes definition of the three main components of such an SDN network, their respective roles, and how they interact with one another. These three components are the SDN controller, the SDN devices (switches), and SDN applications. Important OpenFlow terminology such as flow, flow entry, and flow table are introduced. As SDN has gained momentum, some networking vendors have responded with alternate definitions of SDN, which leverage existing protocols such as NETCONF and BGP-LS. We refer to this form of SDN as API-based, since it attempts to leverage existing APIs and protocols which exist on devices and on SDN controllers which include support for these legacy protocols, implemented as southbound plug-ins. The third type of SDN, SDN via Hypervisor-Based Overlay Networks, involves the use of network virtualization protocols such as VXLAN, NVGRE, and STT, to bypass the physical network altogether, providing SDN-type improvements implemented in the virtual switches present in hypervisors.

We propose and successfully implement a method to program resilience schemes (e.g., code adaptation) in a transponder controller. YANG models are proposed and demonstrated to configure actions and finite state machine in the transponder controller.

The continuous evolution of elastic optical networks (EONs) toward more efficient and flexible backbone networks has been enabled by the innovation of data and control plane technologies. Network Configuration Protocol (NETCONF) is emerging as a software-defined networking (SDN) protocol for the control of optical networks. Its relevance is due to the fact that, besides providing control functionalities (e.g., data plane device configuration), NETCONF also provides management functionalities (e.g., access to monitoring information). NETCONF may exploit the Yet Another Next Generation (YANG) data model to describe network elements to be controlled/managed. YANG and NETCONF are of interest for operators since they provide a standard way to control and manage network elements independently from the vendor. This paper presents and demonstrates a control and management plane for EONs, based on the NETCONF protocol and YANG. In particular, a YANG model describing optical transponders supporting sliceability, variable rate, and monitoring functionalities is proposed. NETCONF experimental demonstrations are carried out to validate the proposed model and to prove the control and management capabilities of these technologies when applied to EONs.

Līdz ar mākoņpakalpojumu sniedzēju un datortīklu skaita straujo pieaugumu, datortīklu prasības to projektēšanā un pārvaldībā kļūst aiz vien lielākas. Darbā tiek apskatītas programmatūras definētas tīklošanas darbības principi (SDN). Tas ir jauns tīkla dizaina princips, kura pamatdoma ir centralizēts kontrolieris kurš pārrauga tīkla darbību, kas tiek realizēts atdalot kontroles līmeni no datu līmeņa tradicionālajās tīkla iekārtās. Darbs sastāv no četrām nodaļām, kurās tiek apskatīta SDN daudzslāņu arhitektūra, iepazīti esošie SDN kontrolieru risinājumi, protokoli kādi tiek izmantoti un aprakstīts nepieciešamais minimums, lai izveidotu SDN tīklu mājas apstākļos., With the amount of Cloud Service providers increasing and networks growing every day, the demand for flexible networks is very high. This work describes workings of software-defined network technology (SDN). SDN is new network design that focuses on central controller that orchestrates network functionality, it is based on principle where the network device control plane is separated from its data plane. This work is divided in four chapters and it describes SDN multilayer architecture, different open source controllers, the protocols which enables SDN and describes what is necessary to begin designing and programming ones own SDN network.

• Automation and programmability is required these days • Data Modeling-driven set of APIs is key for automation • The key is the data models • YANG is the data modeling language for configuration and monitoring: a full, formal contract language with rich syntax and semantics to build applications on. • Many YANG data model developments • In different standard development organizations (but primarly at the IETF) • In opensource • NETCONF (XML) and RESTCONF (XML/JSON) • For follow-ups, you know how to contact us.

This demonstration is going to automate provisioning of multivendor optical platforms supporting API based configurations, using transport interfaces such as NETCONF or REST.

This paper presents control and management of sliceable transponders through NETCONF and YANG. Three OAM schemes are also presented and evaluated with simulations: centralized, hierarchical, and a scheme based on pre-instructions. Hierarchical and pre-instruction provide faster reaction time to degradations.

Software Defined Networking (SDN) is getting much attention for larger network implementation adding programmable feature in the network plane. Demand of wireless networking features is growing simultaneously. With increased network complexity and sizes, security has become an issue as vulnerabilities are still prominent for such complex network and needs to be monitored properly to provide early detection of security breaches and Denial of Service attack. Therefore, the communication protocols, an SDN architecture uses including OpenFlow, NETCONF, OpFlex and BGP etc. should be secure enough to manage such complex and large network. This paper analyzes mostly used protocols specifically for Software Defined Wireless Networking (SDWN): BGP, NETCONF, for underlying cloud or data center environment by applying Microsofts STRIDE security threat model. This work represents a comparative study among these most used protocols and holds appropriate network for their deployment.

Currently a number of managers exist to manage heterogeneous networks, in this situation, the NETCONF protocol for efficient network management has been proposed as a new protocol. However, the standard NETCONF protocol stack continuous improvement since the establishment but in four layers still have some problems. Especially in situations where there are multiple administrators, problems are more highlighted in operation layer. In this paper, we focus on these issues and the Operation layer has improved the efficiency and flexibility of operations among NETCONF four layers. Additionally, for the inefficiency of updates improved the device settings based on improved operation techniques. In addition, standard protocol NETCONF did not proposed content layer data structure and we propose standard technique of content layer that can generate configuration structure of devices. Improved the three techniques are applied appropriately to the NETCONF, the proposed method and the existing NETCONF was performed experiment to compare with experimental four factors. Compare key factor are four kind as maintaining the probability of network function, the reaction performance about command, the number of control packets, performance of data creation in content layer. Such factors after performing the experiment, the proposed method in this paper is superior to the existing NETCONF and there was confirmed by analysis Experimental results.

This paper presents hardware and software architecture based on Software-Defined Networking (SDN) paradigm and OpenFlow/NETCONF protocols for enabling topology management of hybrid electrical/optical switching data center networks. In particular, a development on top of SDN open-source controller OpenDaylight is presented to control an optical switching matrix based on Micro-Electro-Mechanical System (MEMS) technology.

International audience; Energy efficient policies are being applied to network protocols, devices and classical network management systems (NMS). Researchers have already studied in depth each of those fields, including for instance a long monitoring processes of various number of individual ICT equipment from where power models are constructed. With the development of smart intelligent meters and emerging protocols such as SNMP and NETCONF, currently there is an open field to couple the power models, translated to the expected behavior of the devices, with the real-time energy measurements. The goal is to derive a comparison on the power data between those parameters in the direction of detection for possible deviations on the expected results. The logical assumption is that a detected fault in the usage of a particular device will not only increase its own energy usage, but also may cause additional consumption on the other devices part of the network. This paper shows the opportunities to use power consumption monitoring of an ICT infrastructure as a substitute for the classical NMS. A platform is developed to monitor and analyze the retrieved power data of a simulated enterprise ICT infrastructure. Moreover, smart algorithms are developed which are aware of the different states that are occurring on each device during their typical use phase. Hence, the platform is able to detect and isolate possible anomalies, for instance improper use of the networking devices. The produced results are obtained and validated with the use of Cisco switches and routers, Dell Precision stations and Raritan PDU as part of the monitored infrastructure.

Recent technological advances in the telecommunications industry have led to discovering the limitations of traditional communication networks and, in this context, to the emergence of a new paradigm that tries to mitigate them, namely Software Defined Networking (SDN). When it appeared, it was associated only with the OpenFlow protocol, as a southbound interface. However, the recent trend in the industry is the adoption of NETCONF (Network Configuration) protocol, not for replacing OpenFlow, but rather as a complementary solution. This paper provides a comparison, based on hands-on experimentation, between three NETCONF Server open source implementations: Netopeer, OpenYuma and Netconf Testtool provided by Opendaylight. The objective of the paper is to help the researchers interested in developing or testing SDN applications that use the NETCONF protocol as an interface between the SDN controller and the network elements choose a framework for a NETCONF Server that is suited to their needs.

Different architectures of interactions between the objects in the Internet of Things have been proposed, based on direct exchange of data between the wireless devices or based on synchronization with fixed network devices or cloud infrastructure. We evaluated how the selection of the communication architecture influences the performance of the data exchange using discrete event simulation. The distribution of time needed to pass information between smart objects is calculated for three popular network management protocols: CoAP, SNMP and NETCONF. The evaluation is executed for 3 types of communication proposed in the fog computing paradigm: direct synchronization between devices, synchronization through the local gateway or synchronization via the cloud servers. The analysis shows that the communication via the cloud infrastructure requires up to the three times longer time than the data exchange through a local gateway and up to 6 times longer than the direct communication between the network nodes. Transmission through CoAP and SNMP introduces similar delay, considerably lower than NETCONF.

This paper proposes a YANG model to describe a sliceable transponder with variable rate, code, modulation formats, and monitoring capabilities. The model is introduced into NETCONF, which is experimentally demonstrated in a testbed.

This chapter introduces the notion of other relevant and useful standards efforts going on in the industry. In particular, we focus here on the Internet Engineering Task Force’s efforts in this space, both failed and current. Here we define and describe what the NETMOD, NETCONF, SFC and SPRING working groups are up to and why it matters to NFV and SFC technology.

This paper introduces OneClock, a generic approach for using time in networked applications. OneClock provides two basic time-triggered primitives: the ability to schedule an operation at a remote host or device, and the ability to receive feedback about the time at which an event occurred or an operation was executed at a remote host or device. We introduce a novel prediction-based scheduling approach that uses timing information collected at runtime to accurately schedule future operations. Our work includes an extension to the Network Configuration protocol (NETCONF), which enables OneClock in real-life systems. This extension has been published as an Internet Engineering Task Force (IETF) RFC, and a prototype of our NETCONF time extension is publicly available as open source. Experimental evaluation shows that our prediction-based approach allows accurate scheduling in diverse and heterogeneous environments, with various hardware capabilities and workloads. OneClock is a generic approach that can be applied to any managed device: sensors, actuators, Internet of Things (IoT) devices, routers, or toasters., Comment: This technical report is an extended version of "OneClock to Rule Them All: Using Time in Networked Applications", which was accepted to IEEE/IFIP NOMS 2016

TeraStream Design Principles; IPv6 infrastructure integrates IP-routing and optical design to optimize the balance between optical margins, L3-rerouting, component count capex, opex. Key is routers with 100GE/LH line-side interoperable coherent optics and Netconf/Yang.

NETCONF is emerging as Software Defined Networking (SDN) protocol for the control and management of optical networks. It enables data plane device configuration and access to monitoring information. NETCONF may exploit YANG data model to describe network elements to be controlled/managed. YANG and NETCONF are of interest for operators since they provide a standard way to control and manage network elements, independently from the vendor. This paper presents and demonstrates a management plane based on NETCONF protocol. In particular, a YANG model describing optical transponders supporting slice-ability, variable rate, and monitoring functionalities is proposed. NETCONF experimental demonstrations are carried out to validate the proposed model and to prove the control and management capabilities of these technologies applied to elastic optical networks (EONs).

In this paper, an accurate classifier based on Class Association Rules CARs, called CAR-NF, is proposed. CAR-NF introduces a new strategy for computing CARs, using the Netconf as measure of interest, that allows to prune the CAR search space for building specific rules with high Netconf. Moreover, we propose and prove a proposition that supports the use of a Netconf threshold value equal to 0.5 for mining the CARs. Additionally, a new way for ordering the set of CARs based on their rule sizes and Netconf values is introduced in CAR-NF. The ordering strategy together with the "Best K rules" satisfaction mechanism allows CAR-NF to have better accuracy than CBA, CMAR, CPAR, TFPC and HARMONY classifiers, the best classifiers based on CARs reported in the literature.