Now showing items 1-19 of 19

  • A grid-enabled control plane architecture: the PHOSPHORUS approach 

    Simeonidou, Dimitra; Escalona, E.; Zervas, G.; Nejabati, R.; Spadaro, Salvatore; Binczewski, A.; Carrozzo, G.; Ciulli, N. (Optical Society of America, 2008)
    Conference report
    Open Access
    This paper presents the architecture of the Phosphorus Grid-enabled GMPLS (G2MPLS) Network Control Plane that implements the concept of Grid Network Services provisioning through a set of seamlessly integrated procedures.
  • A novel SDN enabled hybrid optical packet/circuit switched data centre network: the LIGHTNESS approach 

    Peng, Shuping; Simeonidou, Dimitra; Zervas, George; Spadaro, Salvatore; Perelló Muntan, Jordi; Agraz Bujan, Fernando; Careglio, Davide; Becerra Fontal, Yolanda; Farreras Esclusa, Montserrat (2014)
    Conference report
    Restricted access - publisher's policy
    Current over-provisioned and multi-tier data centre networks (DCN) deploy rigid control and management platforms, which are not able to accommodate the ever-growing workload driven by the increasing demand of ...
  • Demonstration of C/S based hardware accelerated QoT estimation tool in dynamic impairment-aware optical network 

    Simeonidou, Dimitra; Nejabati, Reza; Qin, Yixuan; Cheng, Kevin C.S.; Triay Marquès, Joan; Escalona, Eduard; Zervas, Georgios S.; Zarris, George; Amaya González, Norberto; Cervelló Pastor, Cristina (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
    Conference report
    Open Access
    An enhanced version of hardware accelerated QoT estimation tool in impairment-aware optical network is demonstrated and evaluated against the different number of lightpaths and wavelengths per link. It outperforms the ...
  • Demonstration of reconfigurable virtual data center networks enabled by OPS with QoS guarantees 

    Miao, Wang; Peng, Shuping; Spadaro, Salvatore; Bernini, Giacomo; Agraz Bujan, Fernando; Ferrer Ferré, Àlex; Perelló Muntan, Jordi; Zervas, Georgios; Nejabati, Reza; Ciulli, Nicola; Simeonidou, Dimitra; Dorren, Harm; Calabretta, Nicola (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    We demonstrate a reconfigurable virtual datacenter network by utilizing statistical multiplexing offered by scalable and flow-controlled optical switching system. Results show QoS guarantees by the priority assignment and ...
  • Enabling multi-tenancy in hybrid optical packet/circuit switched data center networks 

    Peng, Shuping; Nejabati, Reza; Guo, Bingli; Shu, Yan; Zervas, Georgios; Spadaro, Salvatore; Pagès Cruz, Albert; Simeonidou, Dimitra (2014)
    Conference report
    Restricted access - publisher's policy
    In a flattened optical data center network employing hybrid technologies, multi-tenancy is enabled by a new virtual data center embedding method that is equipped with network-aware VM placement exploiting the advanced but ...
  • Experimental assessment of an SDN-based control of OPS switching nodes for intra-data center interconnect 

    Agraz Bujan, Fernando; Miao, Wang; Ferrer Delgado, Alejandro; Bernini, Giacomo; Dorren, Harm; Calabretta, Nicola; Ciulli, Nicola; Perelló Muntan, Jordi; Peng, Shuping; Zervas, Georgios; Simeonidou, Dimitra; Junyent Giralt, Gabriel; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    An SDN-based control framework for OPS switches is experimentally assessed. The OpenFlow messages enabling control communication between SDN controller and OPS switch are validated. Dynamic OPS virtual network slices for ...
  • Experimental demonstration of a novel QoS-aware hybrid optical network 

    Simeonidou, Dimitra; Escalona, Eduard; Qin, Yixuan; Zervas, Georgios; Triay Marquès, Joan; Zarris, George; Amaya González, Norberto; Nejabati, Reza; Cervelló Pastor, Cristina (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
    Conference report
    Open Access
    This paper presents a hybrid optical test-bed controlled by a hardware-accelerated control plane capable of dynamically provisioning the most suitable route according to the requirements of the client technology and the ...
  • Experimental demonstration of a self-optimised multi-bit-rate optical network 

    Simeonidou, Dimitra; Zervas, Georgios S.; Zarris, George; Amaya González, Norberto; Triay Marquès, Joan; Escalona, Eduard; Qin, Yixuan; Cervelló Pastor, Cristina; Nejabati, Reza (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
    Conference report
    Open Access
    This paper proposes an innovative self-managed optical network architecture for heterogenous transparent optical networks. A self-optimized dynamic network testbed that comprises multiple multi bit-rate ligthpaths on a ...
  • GMPLS/PCE/OBST architectures for guaranteed sub-wavelength mesh metro network services 

    Triay Marquès, Joan; Zervas, Georgios S.; Cervelló Pastor, Cristina; Simeonidou, Dimitra (2011)
    Conference lecture
    Open Access
    This paper presents three innovative GMPLS/PCE/OBST interworking architectures for mesh metro networks which deliver guaranteed contention-free sub-wavelength services with enhanced channel utilization, yet enabling ...
  • ICT BONE views on the network of the future: the role of optical networking 

    Pattavina, Achille; Vlachos, Kyriakos; Petropoulos, Periklis; Callegati, Franco; Spadaro, Salvatore; Castoldi, Piero; Mitchell, John; Franzl, Gerald; Politi, Tanya; Tzanakaki, Anna; O'Mahony, Michael; Katrinis, Kostas; Van Daele, Peter; Pickavet, Mario; Simeonidou, Dimitra; Stavdas, Alexandros (2010)
    Conference report
    Open Access
    Part of the activities of the ICT EU Network of Excellence “Building the future Optical Network in Europe” (BONE) project is the development of the European Roadmap on Optical Networking in the context of the “Network ...
  • MANTICORE II: IP Network as a Service Pilots at HEAnet, NORDUnet and RedIRIS 

    Cabello, Isidro; Simeonidou, Dimitra; Lonvich, Chris; Uze, Jean Marc; de Miguel, Tomas P.; Fischer, Lars; Wilson, Dave; Reijs, Victor; Grasa Gras, Eduard; Figuerola, Sergi; Barrera, Xavier; Ferrao, Laia; Baez, Carlos; Minoves, Pau; Hesselbach Serra, Xavier; Botero Vega, Juan Felipe (2010)
    Conference report
    Open Access
    MANTICORE II follows the Infrastructure as a Service (IaaS) paradigm to enable National Research and Education Networks (NRENs) and other e-infrastructure providers to enhance their service portfolio by building and piloting ...
  • Multi-service MAC-enabled OBS networks 

    Triay Marquès, Joan; Zervas, Georgios; Cervelló Pastor, Cristina; Nejabati, Reza; Simeonidou, Dimitra (2010-03)
    Conference lecture
    Restricted access - publisher's policy
    In this paper, a novel multi-service architectural solution based on a MAC protocol for mesh OBS networks is designed and the network performance among TDM services and connectionless burst transmissions is evaluated through ...
  • Multiservice QoS-enabled MAC for optical burst switching 

    Triay Marquès, Joan; Zervas, Georgios S.; Cervelló Pastor, Cristina; Simeonidou, Dimitra (IEEE Press. Institute of Electrical and Electronics Engineers, 2010-07-14)
    Article
    Open Access
    The emergence of a broad range of network-driven applications (e.g., multimedia, online gaming) brings in the need for a network environment able to provide multiservice capabilities with diverse quality-of-service (QoS) ...
  • Planning of dynamic virtual optical cloud infrastructures: the GEYSERS approach 

    Tzanakaki, Anna; Anastasopoulos, Markos; Landi, Giada; Bernini, Giacomo; Ciulli, Nicola; Riera, Jordi; Escalona Zorita, Eduard; García Espin, Joan Antoni; Hesselbach Serra, Xavier; Figuerola Fernández, Sergi; Peng, Shuping; Nejabati, Reza; Simeonidou, Dimitra; Parniewicz, Damian; Belter, Bartosz (2014-01-01)
    Article
    Restricted access - publisher's policy
    This article focuses on planning and replanning of virtual infrastructures over optical cloud infrastructures comprising integrated optical network and IT resources. This concept has been developed in the context of the ...
  • QoS-Enabled distributed access on optical burst-switched networks 

    Triay Marquès, Joan; Zervas, Georgios; Cervelló Pastor, Cristina; Nejabati, Reza; Simeonidou, Dimitra (IEEE Press. Institute of Electrical and Electronics Engineers, 2010-01)
    Conference lecture
    Open Access
    Optical Burst Switching (OBS) has been proposed as an efficient technology to cope with the ever increasing bursty traffic on the Internet. The emergence of a broad range of network-driven applications (e.g. multimedia, ...
  • Research in optical burst switching within the e-Photon/ONe network of excellence 

    González de Dios, Óscar; Aracil Rico, Javier; Akar, Nail; Bjornstad, Steinar; Casoni, Maurizio; Christodoulopoulos, K.; Careglio, Davide; Fernández Palacios, Juan Pedro; Gauger, C.; Tosi Beleffi, Giorgio M.; Stol, Norvald; Simeonidou, Dimitra; Raffaelli, Carla; Overby, Harald; Nejabati, Reza; Morató, Daniel; Klinkowski, Miroslaw; Karasan, Ezhan; Hu, Guoqiang; Vlachos, K. (2007-02)
    Article
    Restricted access - publisher's policy
    This paper presents a summary of Optical Burst Switching (OBS) research within the VI framework program e-Photon/ONe network of excellence. The paper includes network aspects such as routing techniques, resilience and ...
  • Time Shared Optical Network (TSON): a novel metro architecture for flexible multi-granular services 

    Zervas, Georgios S.; Triay Marquès, Joan; Amaya, Norberto; Qin, Yixuan; Cervelló Pastor, Cristina; Simeonidou, Dimitra (2011-11-28)
    Article
    Open Access
    This paper presents the Time Shared Optical Network (TSON) as metro mesh network architecture for guaranteed, statistically-multiplexed services. TSON proposes a flexible and tunable time-wavelength assignment along with ...
  • Time shared optical network (TSON): A novel metro architecture for flexible multi-granular services 

    Zervas, Georgios S.; Triay Marquès, Joan; Amaya González, Norberto; Qin, Yixuan; Cervelló Pastor, Cristina; Simeonidou, Dimitra (2011)
    Conference lecture
    Open Access
    This paper presents the TSON metro mesh network architecture for guaranteed, statistically-multiplexed services. It proposes tunable time-wavelength assignment, one-way treebased reservation and node architecture. Results ...
  • Virtual Infrastructures as a service enabling converged optical networks and Data Centres 

    Ferrer Riera, Jordi; Tzanakaki, Anna; Antonescu, Alexandru-Florian; Anastasopoulos, Markos; García Espin, Joan Antoni; Escalona Zorita, Eduard; Peng, Shuping; Landi, Giada; Bernini, Giacomo; Belter, Bartosz; Parniewicz, Damian; Hesselbach Serra, Xavier; Figuerola Fernandez, Sergi; Simeonidou, Dimitra (2014-08)
    Article
    Restricted access - publisher's policy
    Cloud computing service emerged as an essential component of the Enterprise IT infrastructure. Migration towards a full range and large-scale convergence of Cloud and network services has become the current trend for ...