Now showing items 1-20 of 29

  • An Approach to a Fault Tolerance LISP Architecture 

    Martínez Manzanilla, Anny Gabriela; Ramírez, Wilson; Germán Duarte, Martín; Serral Gracià, René; Marín Tordera, Eva; Yannuzzi, Marcelo; Masip Bruin, Xavier (Springer Verlag, 2011)
    Conference report
    Open Access
    Next Generation Internet points out the challenge of addressing "things" on both a network with (wired) and without (wireless) infrastructure. In this scenario, new efficient and scalable addressing and routing schemes ...
  • A New Parametric Regenerator Allocation Scheme taking into account Inaccurate Physical Information 

    Marín Tordera, Eva; Yannuzzi, Marcelo; Serral Gracià, René; Masip Bruin, Xavier; Sánchez López, Sergio (2010-06-08)
    Conference report
    Open Access
    Regenerator allocation consists on selecting which of the already installed regenerators in a translucent network may be used according to the dynamic traffic requests in order to maximize the quality of the optical ...
  • An overview of quality of experience measurement challenges for video applications in IP Networks 

    Serral Gracià, René; Cerqueira, E; Curado, Marilia; Yannuzzi, Marcelo; Monteiro, Edmundo; Masip Bruin, Xavier (Springer, 2010-06-01)
    Conference report
    Open Access
    The increase in multimedia content on the Internet has created a renewed interest in quality assessment. There is however a main difference from the traditional quality assessment approaches, as now, the focus relies on ...
  • A study of packet losses in the EuQoS network 

    Jakab, Lorand; Serral Gracià, René; Domingo Pascual, Jordi (2006)
    Conference report
    Open Access
    As Internet usage grows, more efforts are put into analyzing its internal performance, usually such analysis comes through simulation using different models. While simulation can provide a good approximation of network ...
  • A survey and taxonomy of ID/Locator Split Architectures 

    Ramirez Almonte, Wilson; Masip Bruin, Xavier; Yannuzzi, Marcelo; Serral Gracià, René; Martínez Manzanilla, Anny Gabriela; Siddiqui, Muhammad Shuaib (2014-02-26)
    Article
    Restricted access - publisher's policy
    The IP-based addressing scheme currently supporting the whole routing architecture embeds some well-known limitations that may significantly hinder the deployment of new applications and services on the Internet. Indeed, ...
  • A survey on the recent efforts of the Internet standardization body for securing inter-domain routing 

    Siddiqui, Muhammad Shuaib; Montero Banegas, Diego Teodoro; Serral Gracià, René; Masip Bruin, Xavier; Yannuzzi, Marcelo (2015-04-07)
    Article
    Open Access
    The Border Gateway Protocol (BGP) is the de facto inter-domain routing protocol in the Internet, thus it plays a crucial role in current communications. Unfortunately, it was conceived without any internal security mechanism, ...
  • Cross-layer multimedia quality enforcement through user aware information in wireless networks 

    Serral Gracià, René; Yannuzzi, Marcelo; Marín Tordera, Eva; Masip Bruin, Xavier; Sánchez López, Sergio (2010-06-14)
    Conference report
    Open Access
    Quality assessment of multimedia traffic is a hot topic. In this paper we present a Multimedia Management System, which can be used on-line to assess and guarantee the quality of multimedia traffic in a wired and wireless ...
  • Cross-talk effects on the Regenerator Allocation optimization 

    Marín Tordera, Eva; Masip Bruin, Xavier; Yannuzzi, Marcelo; Serral Gracià, René; Sánchez López, Sergio (2011)
    Conference report
    Open Access
    This paper studies the impact of considering crosstalk effects in the IA-RWA process and in the regenerator allocation algorithms. First of all, we evaluate if the regenerator allocation optimization is still useful when ...
  • Diagnosis of route leaks among autonomous systems in the Internet 

    Siddiqui, Muhammad Shuaib; Montero Banegas, Diego Teodoro; Yannuzzi, Marcelo; Serral Gracià, René; Masip Bruin, Xavier (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    Border Gateway Protocol (BGP) is the defacto inter-domain routing protocol in the Internet. It was designed without an inherent security mechanism and hence is prone to a number of vulnerabilities which can cause large ...
  • Distributed Sampling for On-line SLA Assessment 

    Serral Gracià, René; Barlet Ros, Pere; Domingo Pascual, Jordi (IEEE Communications Society, 2008-09-30)
    Conference report
    Open Access
    New business infrastructures over the Internet pose a new set of traffic constraints. In particular, multimedia and interactive contents require guarantees of bandwidth and delivery time. The broad deployment and real-time ...
  • Effcient network performance assessment using Inter-Packet Arrival Times 

    Serral Gracià, René; Marín Tordera, Eva; Yannuzzi, Marcelo; Masip Bruin, Xavier; Sánchez López, Sergio (IEEE Computer Society Publications, 2010)
    Conference report
    Open Access
    Network performance measurements have been broadly used in order to debug and to assess the reliability of the network. In general performance measurement is a resource consuming process, which in practice derives in ...
  • Maximum Coverage at Minimum Cost for Multi-Domain IP/MPLS Networks 

    Yannuzzi, Marcelo; Masip Bruin, Xavier; Serral Gracià, René; Marín Tordera, Eva; Sprintson, Alex; Orda, Ariel (IEEE Computer Society Publications, 2008)
    Conference report
    Open Access
    At present, service providers have several incentives to extend the reach of long-lived MPLS paths across domains. Providers, however, will face a number of trade-offs while choosing the optimal set of MPLS paths to be ...
  • Modeling physical-layer impairments in multi-domain optical networks 

    Yannuzzi, Marcelo; Marín Tordera, Eva; Serral Gracià, René; Masip Bruin, Xavier; González de Dios, Óscar; Jimenez Chico, Javier; Verchere, Dominique (IEEE Computer Society Publications, 2011)
    Conference report
    Restricted access - publisher's policy
    The advantages of optical transparency are still confined to the boundaries of a domain, since the optical signals are subject to O/E/O conversions at the border nodes that separate two optical domains. The extension ...
  • Movilidad Ip: macromovilidad, micromovilidad, calidad de servicio y seguridad 

    Mangues Bafalluy, Josep; Cabellos Aparicio, Alberto; Serral Gracià, René; Domingo Pascual, Jordi; Gómez, A; Miguel, De T; Bagnulo, M; Garcia Olaverri, Alfredo Martin (Asociación de Técnicos de Informática, 2004-01)
    Article
    Open Access
    a actual tendencia hacia la provisión de conectvidad ubícua, independientemente del lugar, instante, aplicación utilizada, o tecnología de acceso ha contrbuÍdo a acuñar la expresión, "Always Best Connected" (ABC), para ...
  • Multi-domain optical routing: Is there life beyond extending BGP? 

    Marín Tordera, Eva; Masip Bruin, Xavier; Yannuzzi, Marcelo; Serral Gracià, René (2014-01-01)
    Article
    Open Access
    The design of new inter-domain optical routing protocols may start from scratch, or on the contrary exploits all the research already developed in IP networks with the Border Gateway Protocol (BGP). Even though the network ...
  • Offloading personal security applications to the Network Edge: a mobile user case scenario 

    Montero Banegas, Diego Teodoro; Serral Gracià, René (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Restricted access - publisher's policy
    This paper discusses some challenges that user mobility imposes over the user-centric protection model against security threats. This model is based on the idea of offloading the security applications from the end user ...
  • Ontology-based information extraction from the configuration command line of network routers 

    Martínez Manzanilla, Anny Gabriela; Yannuzzi, Marcelo; Serral Gracià, René; Ramirez Almonte, Wilson (Springer, 2014)
    Conference report
    Restricted access - publisher's policy
    Knowledge extraction is increasingly attracting the attention of researchers from different disciplines, as a means to automate complex tasks that rely on bulk textual resources. However, the configuration of many devices ...
  • Quality of experience aware multimedia provisioning with cross-layer network management 

    Serral Gracià, René; Marín Tordera, Eva; Yannuzzi, Marcelo; Masip Bruin, Xavier; Sánchez López, Sergio (2010)
    Conference report
    Open Access
    This paper presents a Cross-layer Network Management System (NMS) that allows Service Providers (SPs) to perform cost-effective network resource reservations with their Network Operators (NOs). The novelty of our NMS is ...
  • Quality of experience based provisioning for service providers 

    Serral Gracià, René; Marín Tordera, Eva; Yannuzzi, Marcelo; Masip Bruin, Xavier; Sánchez López, Sergio (2009-12-14)
    Conference report
    Open Access
    Nowadays Network Operators (NOs) are providing service guaranties to customers by largely overprovisioning their networks, but as the Internet keeps growing, this approach is unveiling important issues in terms of cost and ...
  • Quality of experience enforcement in wireless networks 

    Serral Gracià, René; Yannuzzi, Marcelo; Marín Tordera, Eva; Masip Bruin, Xavier; Sánchez López, Sergio (Springer, 2010-06-01)
    Conference report
    Open Access
    In this paper we present a Multimedia Wireless Management System, which can be used on-line to assess and guarantee the quality of multimedia traffic in a wireless network. The proposed platform uses both network and ...