Now showing items 30-49 of 52

    • Mejoras en la identificación de tráfico de aplicación basado en firmas 

      Santolaya Bea, Néstor; Magaña Lizarrondo, Eduardo Upna; Izal Azcárate, Mikel Upna; Morató Osés, Daniel Upna (2008)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Traffic identification has been based traditionally on transport protocol ports, associating always the same ports with the same applications. Nowadays that assumption is not true and new methods like signature identification ...
    • Midiendo retardos y pérdidas en las redes móviles de alta velocidad 

      Prieto Suárez, Iria Upna; Izal Azcárate, Mikel Upna; Magaña Lizarrondo, Eduardo Upna; Morató Osés, Daniel Upna (2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Mobile networks are constantly evolving, but still, due to their nature, it is not trivial to analayse how they face up different kinds of traffic. On the Internet a wide range of services can be found. Usually the majority ...
    • Monitorización activa de altas prestaciones mediante la plataforma paneuropa ETOMIC 

      Magaña Lizarrondo, Eduardo Upna; Alonso Camaró, Ulisses Upna; Astiz Saldaña, Francisco Javier Upna; Morató Osés, Daniel Upna; Izal Azcárate, Mikel Upna; Naranjo Abad, Francisco José Upna; Aracil Rico, Javier Upna (2005)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper we present the first set of active measurements that we have made using the ETOMIC system. ETOMIC is a paneuropean traffic measurement infrastructure with GPS-synchronized monitoring nodes. Specific hardware ...
    • Multiresolution analysis of optical burst switching traffic 

      Aracil Rico, Javier Upna; Morató Osés, Daniel Upna; Magaña Lizarrondo, Eduardo Upna; Izal Azcárate, Mikel Upna (IEEE, 2003)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, a Multiresolution Analysis is conducted in order to study the self-similar features of Optical Burst Switching (OBS) traffi c. The scenario consists of an OBS backbone with input traffic from a large number ...
    • On fuzzy orderings of crisp and fuzzy intervals 

      Fuentes González, Ramón Upna; Burillo López, Pedro Upna; Mayor, Gaspar (EUSFLAT, 2001)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      First, fuzzy membership functions for the assertion '[x,y] is a positive interval' are proposed and characterized via non-decreasing real maps. Last, using those functions together with the intervaldifference and the ...
    • On linear prediction of Internet traffic for packet and burst switching networks 

      Morató Osés, Daniel Upna; Aracil Rico, Javier Upna; Díez, L. A. Upna; Izal Azcárate, Mikel Upna; Magaña Lizarrondo, Eduardo Upna (IEEE, 2001)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, we show that prediction algorithms in the least mean square error sense prove better in a burst rather than in a packet switching network. For the latter, further information about the packet arrival ...
    • On the nature of unused TCP connections in web traffic 

      Torres García, Luis Miguel Upna; Magaña Lizarrondo, Eduardo Upna; Izal Azcárate, Mikel Upna; Morató Osés, Daniel Upna (2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The popularity of the web and the requirements introduced by current web content have pushed for the development of new techniques that meet these challenges and improve the experience of the users. In particular, during ...
    • On the use of balking for estimation of the blocking probability for OBS routers with FDL lines 

      Morató Osés, Daniel Upna; Aracil Rico, Javier Upna (Springer Berlin Heidelberg, 2006)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper deals with estimation of blocking probabilities for OBS switches with Fiber Delay Lines (FDLs) and full wavelength conversion. An incoming burst that finds the wavelengths occupied is temporarily stored in a ...
    • Pamplona-traceroute: topology discovery and alias resolution to build router level Internet maps 

      García Jiménez, Santiago Upna; Magaña Lizarrondo, Eduardo Upna; Morató Osés, Daniel Upna; Izal Azcárate, Mikel Upna (IEEE, 2013)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      An Internet topology map at the router level not only needs to discover IP addresses in Internet paths (traceroute) but also needs to identify IP addresses belonging to the same router (IP aliases). Both processes, discovery ...
    • Planificación de la calidad de servicio para el acceso a Internet de las operadoras de cable 

      Magaña Lizarrondo, Eduardo Upna; Villadangos Alonso, Jesús Upna; Izkue Mendi, Edurne Upna (2002)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, the data traffic generated by users of cablemodems is studied. This service must be guaranteed for accomplishing certain Quality of Service and limiting the maximum bandwidth per user. The analysis presents ...
    • A popularity-aware method for discovering server IP addresses related to websites 

      Torres García, Luis Miguel Upna; Magaña Lizarrondo, Eduardo Upna; Izal Azcárate, Mikel Upna; Morató Osés, Daniel Upna (IEEE, 2013)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The complexity of web traffic has grown in the past years as websites evolve and new services are provided over the HTTP protocol. When accessing a website, multiple connections to different servers are opened and it is ...
    • Predicción de tráfico de Internet and aplicaciones 

      Bernal, I.; Aracil Rico, Javier Upna; Morató Osés, Daniel Upna; Izal Azcárate, Mikel Upna; Magaña Lizarrondo, Eduardo Upna; Díez, L. A. Upna (2001)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper we focus on traffic prediction as a means to achieve dynamic bandwidth allocation in a generic Internet link. Our findings show that coarse prediction (bytes per interval) proves advantageous to perform dynamic ...
    • Preemption window for burst differentiation in OBS 

      Klinkowski, Miroslaw; Careglio, Davide; Morató Osés, Daniel Upna; Solé Pareta, Josep (IEEE, 2008)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper presents a novel control architecture for optical burst switching networks to efficiently apply burst preemption without the resources overbooking, which is specific to conventional OBS. Simulation results prove ...
    • A proposal of burst cloning for video quality improvement in optical burst switching networks 

      Espina Antolín, Félix Upna; Morató Osés, Daniel Upna; Izal Azcárate, Mikel Upna; Magaña Lizarrondo, Eduardo Upna (2013)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    • Resolución de alias para el cálculo de topologías 

      García Jiménez, Santiago Upna; Magaña Lizarrondo, Eduardo Upna; Izal Azcárate, Mikel Upna; Morató Osés, Daniel Upna (2007)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The network topology is a fundamental parameter for managers and researchers. The traditional methodology for discovering the topology of a network is based on the tool traceroute, used from several vantage points in ...
    • A simple passive method to estimate RTT in high bandwidth-delay networks 

      Prieto Suárez, Iria Upna; Izal Azcárate, Mikel Upna; Magaña Lizarrondo, Eduardo Upna; Morató Osés, Daniel Upna (IARIA, 2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper presents a simple passive algorithm to estimate the Round-Trip-Time (RTT) of a TCP connection in high bandwidth-delay network scenarios. In these scenarios, a passive RTT estimator that can be used on captured ...
    • Techniques for better alias resolution in Internet topology discovery 

      García Jiménez, Santiago Upna; Magaña Lizarrondo, Eduardo Upna; Morató Osés, Daniel Upna; Izal Azcárate, Mikel Upna (IEEE, 2009)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      One of the challenging problems related with network topology discovery in Internet is the process of IP address alias identification. Topology information is usually obtained from a set of traceroutes that provide IP ...
    • Técnicas eficientes de filtrado y análisis de tráfico para la monitorización continua de redes de comunicaciones 

      Ruiz, José Javier; Magaña Lizarrondo, Eduardo Upna; Aracil Rico, Javier Upna; Villadangos Alonso, Jesús Upna (1999)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper presents an efficient traffic filtering and analysis architecture for network monitoring. Opposed to the usual network monitoring architectures that provide simultaneous filters as requested by managers (packet ...
    • TNS research in progress 

      Izal Azcárate, Mikel Upna; Prieto Suárez, Iria Upna; Espina Antolín, Félix Upna; Morató Osés, Daniel Upna; Magaña Lizarrondo, Eduardo Upna (Universidad Politécnica de Cartagena, Servicio de Documentación, 2012)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper summarizes latest works of Telematic, Networks and Services research group (TNS) of Public University of Navarra in the topics of FIERRO thematic network. Last two papers sent to major conferences are ...
    • Traffic estimation in high-speed communication networks using fuzzy systems 

      Magaña Lizarrondo, Eduardo Upna; Villadangos Alonso, Jesús Upna; Astrain Escola, José Javier Upna (EUSFLAT, 2001)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We present a practical application of fuzzy systems in communication networks. In this case a fuzzy relational model is developed to estimate the bytes transferred every time unit over a communication link. Such estimation ...