The Contribution of MDA in Software-Defined Network: A Survey

The Contribution of MDA in Software-Defined Network: A Survey

Adra Hammoud (Ibn Tofail University, Morocco), Mohamed Lahmer (Moulay Ismail University, Morocco), Samir Mbarki (Ibn Tofail University, Morocco) and Fatima Sifou (Mohamed V University, Morocco)
Copyright: © 2021 |Pages: 17
DOI: 10.4018/978-1-7998-3661-2.ch007
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Software-defined networking is changing the way we design and manage networks. This prominent paradigm based on the separation of control and management plane is highly heterogeneous with different devices from various technologies and leads to an incredible growing of materials. As SDN expands in size of devices and complexity, it faces greater administrative and management challenges. The paradigm of MDA was introduced using NETCONF/YANG as a way to model in order to deal with these management challenges and soften the development of SDN applications. The researchers joined the MDA and its related concepts as model-driven engineering to SDN to implement a platform called model-driven networking increasing the level of abstraction on development. This chapter presents a comprehensive survey of the research relating to MDN paradigm. It starts by introducing the basic concepts of SDN. Next, it presents the concepts related to MDA, and the YANG which is a modeling language. Last, it highlights the studies introducing the MDN paradigm and its benefits in SDN applications.
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The key idea of SDN is to decouple the control plane from the data plane and allow flexible and efficient management and operation of the network via software programs. Nevertheless, the application development in this context is still complex for such recent technology. Moreover, there is a strong need for methodologies and tools exploring the abstraction levels potentials supported by SDN. In the move to this architecture, model-driven templating plays a pivotal role in helping develop and deliver new services more quickly(Abel Tong, 2016). In this context, many researches have been proposed using the Model-Driven Architecture and its concepts to ease the application development within the new paradigm. A novel Software-Defined Networking (SDN) Controller architecture that is founded on Model-Driven Software Engineering (MDSE) concepts was presented (Jan Medved et al., 2014). It supports both the “classic” OpenFlow-based approach to SDN and emerging model-driven network management/programmability technologies, such as NETCONF/YANG. (Felipe A. Lopes et al.,2015)introduced a new approach based on the Model-Driven Engineering (MDE) paradigm, called Model Driven Networking (MDN). MDN relies on a Domain-Specific Modelling Language (DSML) to create SDN applications. This proposal increases the level of abstraction on development, therefore reduces the complexity to implement SDN applications. These applications should be built in a more customized fashion, and seamless integrated with existing SDN infrastructure and control. (JoãoEurípedes Pereira Júnioretal., 2019) proposed a Model-Driven Development (MDD) approach to SDN application development and integration so as to ensure high-quality network services. The suggested method is based on the use of ontology-driven conceptual modeling to understand the behavior of existing and to improve the network architecture’s elements in order to optimally interface and integrate into models. These models are transformed into source code that respects the requirements of existing components and enforce the requirements of SDN applications been developed leading to higher continuity and lower time to market and maintenance cost of SDN services. These models also promote communication and learning improvements in developer community accelerating the development process and minimizing risks. (Clemm. A, et al., 2017) Defined an abstract (generic) YANG data model for network/service topologies and inventories. The data model serves as a base model which is augmented with technology-specific details in other, more specific topology and inventory data models. In case of facing a new network controller, developers are forced to re-implement their solution. Although Openflow is the interface between the controller and the network infrastructure, the interoperability between different controllers and network devices is crowded and the closed ecosystems are increasing.

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