Now showing items 1-19 of 19

    • A distributed algorithm for topology discovery in software-defined networks 

      Ochoa Aday, Leonardo; Cervelló Pastor, Cristina; Fernández Fernández, Adriana (Springer, 2016)
      Conference report
      Restricted access - publisher's policy
      To ensure a proficient topology discovery service in Software-Defined Networks (SDN), we propose a simple agents-based mechanism to improve the efficiency of the topology discovery process. In this work, an algorithm for ...
    • A distributed algorithm for topology discovery in Software-Defined Networks 

      Ochoa Aday, Leonardo; Cervelló Pastor, Cristina; Fernández Fernández, Adriana (Springer, 2016-06-07)
      Part of book or chapter of book
      Restricted access - publisher's policy
      To ensure a proficient topology discovery service in Software-Defined Networks (SDN), we propose a simple agents-based mechanism to improve the efficiency of the topology discovery process. In this work, an algorithm for ...
    • A distributed energy-aware routing algorithm in Software-Defined Networks 

      Fernández Fernández, Adriana; Cervelló Pastor, Cristina; Ochoa Aday, Leonardo (Springer, 2016-06-07)
      Part of book or chapter of book
      Restricted access - publisher's policy
      In this paper we address the issue of designing a novel distributed routing algorithm that optimizes the power consumption in large scale software-defined networks (SDN) with multiple domains. The solution proposed, called ...
    • A distributed energy-aware routing algorithm in software-defined networks 

      Fernández Fernández, Adriana; Cervelló Pastor, Cristina; Ochoa Aday, Leonardo (2016)
      Conference report
      Restricted access - publisher's policy
      In this paper we address the issue of designing a novel distributed routing algorithm that optimizes the power consumption in large scale software-defined networks (SDN) with multiple domains. The solution proposed, called ...
    • A multi-objective routing strategy for QoS and energy awareness in software-defined networks 

      Fernández Fernández, Adriana; Cervelló Pastor, Cristina; Ochoa Aday, Leonardo (2017-08-21)
      Article
      Open Access
      Energy consumption is a key concern in the deployment and operation of current data networks, for which Software-Defined Networks (SDN) have become a promising alternative. Although several works have been proposed to ...
    • Achieving energy efficiency: an energy-aware approach in SDN 

      Fernández Fernández, Adriana; Cervelló Pastor, Cristina; Ochoa Aday, Leonardo (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      Achieving energy efficiency has recently become an essential aim of networking research due to the ever increasing power consumption and CO2 emissions generated by large data networks. For this problem, the emerging paradigm ...
    • An online algorithm for dynamic NFV placement in cloud-based autonomous response networks 

      Ochoa Aday, Leonardo; Cervelló Pastor, Cristina; Fernández Fernández, Adriana; Grosso, P. (2018-05-15)
      Article
      Open Access
      Autonomous response networks are becoming a reality thanks to recent advances in cloud computing, Network Function Virtualization (NFV) and Software-Defined Networking (SDN) technologies. These enhanced networks fully ...
    • An online power-aware routing in SDN with congestion-avoidance traffic reallocation 

      Fernández Fernández, Adriana; Cervelló Pastor, Cristina; Ochoa Aday, Leonardo; Grosso, P. (2018)
      Conference report
      Restricted access - publisher's policy
      Software-Defined Networks (SDN) can be seen as a promising alternative to achieve the long-awaited power efficiency in current communications systems. In these programmable networks a power-aware mechanism could be easily ...
    • Contributions to topology discovery, self-healing and VNF placement in software-defined and virtualized networks 

      Ochoa Aday, Leonardo (Universitat Politècnica de Catalunya, 2019-01-30)
      Doctoral thesis
      Open Access
      The evolution of information and communication technologies (e.g. cloud computing, the Internet of Things (IoT) and 5G, among others) has enabled a large market of applications and network services for a massive number of ...
    • Current Trends of Topology Discovery in OpenFlow-based Software Defined Networks 

      Ochoa Aday, Leonardo; Cervelló Pastor, Cristina; Fernández Fernández, Adriana (2015-09)
      External research report
      Open Access
      The explosion of Internet services such as video on demand, big data, server virtualization and cloud services is among the trends driving the networking industry to change traditional network architectures to more flexible ...
    • Despliegue de funciones de red virtualizadas en el cloud mediante ONAP 

      Martí Luque, Adrià; Toro Marín, Albert; Ochoa Aday, Leonardo; Fernández Fernández, Adriana; Oller Arcas, Antonio; Cervelló Pastor, Cristina; Alcober Segura, Jesús Ángel (Universidad de Zaragoza (UZA), 2019)
      Conference lecture
      Open Access
      En este documento se explica la experiencia del despliegue de funciones de red virtualizadas en una red cloud privada mediante ONAP, junto con la arquitectura empleada, las máquinas utilizadas y el software necesario. ONAP ...
    • Discovering the network topology: an efficient approach for SDN 

      Ochoa Aday, Leonardo; Cervelló Pastor, Cristina; Fernández Fernández, Adriana (2016-11)
      Article
      Open Access
      Network topology is a physical description of the overall resources in the network. Collecting this information using efficient mechanisms becomes a critical task for important network functions such as routing, network ...
    • Energy efficiency and network performance: A reality check in SDN-based 5G systems 

      Fernández Fernández, Adriana; Cervelló Pastor, Cristina; Ochoa Aday, Leonardo (2017-12-14)
      Article
      Open Access
      The increasing power consumption and related environmental implications currently generated by large data networks have become a major concern over the last decade. Given the drastic traffic increase expected in 5G dense ...
    • Energy-aware routing in multiple domains software defined networks 

      Fernández Fernández, Adriana; Cervelló Pastor, Cristina; Ochoa Aday, Leonardo (2016-12)
      Article
      Open Access
      The growing energy consumption of communication networks has attracted the attention of the networking researchers in the last decade. In this context, the new architecture of Software-Defined Networks (SDN) allows a ...
    • ETDP: enhanced topology discovery protocol for software-defined networks 

      Ochoa Aday, Leonardo; Cervelló Pastor, Cristina; Fernández Fernández, Adriana (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
      Article
      Open Access
      Discovering network elements in a dynamic and optimized manner and being able to contend with ever-growing traffic is a key requirement for current networking environments. In software-defined networks (SDNs), the controller ...
    • Evaluating the impact of energy-aware routing on Software-Defined Networking performance 

      Fernández Fernández, Adriana; Cervelló Pastor, Cristina; Ochoa Aday, Leonardo (Editorial Universitat Politècnica de València, 2017)
      Conference report
      Open Access
      Increasing power consumption and CO2 emissions generated by large data networks have become a major concern over the last decade. For this problem, the emerging paradigm of Software-Defined Networks (SDN) can be seen as ...
    • Improved energy-aware routing algorithm in software-defined networks 

      Fernández Fernández, Adriana; Cervelló Pastor, Cristina; Ochoa Aday, Leonardo (2016)
      Conference lecture
      Restricted access - publisher's policy
      The growing energy consumption of communication networks has attracted the attention of the networking researchers in the last decade. In this context, SDN allows a flexible programmability, suitable for the power-consumption ...
    • Self-healing and SDN: bridging the gap 

      Ochoa Aday, Leonardo; Cervelló Pastor, Cristina; Fernández Fernández, Adriana (2019-09-03)
      Article
      Open Access
      Achieving high programmability has become an essential aim of network research due to the ever-increasing internet traffic. Software-Defined Network (SDN) is an emerging architecture aimed to address this need. However, ...
    • Self-healing topology discovery protocol for software defined networks 

      Ochoa Aday, Leonardo; Cervelló Pastor, Cristina; Fernández Fernández, Adriana (2018-03-19)
      Article
      Open Access
      This letter presents the design of a self-healing protocol for automatic discovery and maintenance of the network topology in Software Defined Networks (SDN). The proposed protocol integrates two enhanced features (i.e. ...