Flyers

in detail

VRVS - Virtual Rooms Videoconferencing System
Academic Videoconference System

VRVS is based on the Virtual Room concept. Several participants from different geographical places can have a conference (audio, video, shared applications) in a unique virtual area. We call this area a Virtual Room. This concept is implemented with two technologies: the “reflector” software to manage a video network on one hand and a unified user interface on the other hand. The VRVS user interface is Web-based. Thus, the interface is multi-platform, light and easy to use.

DataTAG - Research and Technological
Development for a Transatlantic Grid

Abstract: The main idea behind the DataTAG project was to strengthen the collaboration between, Globus middleware based, Grid projects in Europe and in the USA by providing a common dedicated testbed, in order to facilitate the deployment of a “transparent” Grid infrastructure allowing access to the massively distributed computing infrastructure that is needed to meet the challenges of modern high energy physics experiments such as the data intensive LHC (Large Hadron Collider at CERN) applications.

Cern iCAIR - StarLight, TransLight, OMINet: CERN-iCAIR
Advanced Optical Networking Demonstrations at WSIS 2003

For WSIS 2003, CERN and the International Center for Advanced Internet Research (iCAIR) designed several demonstrations of next generation high performance networking, based on next-generation, intelligent optical networking technology and dynamic data services provisioning. These demonstrations indicate the potential for creating new global applications as traditional barriers to network optimization at multiple levels are removed.

Generic AAA - Generic AAA Based Provisioning of Network Elements

The concepts of Generic AAA are described in RFC2903 [1] (Generice AAA Architecture) and RFC2904 [2] (Authorization Framework). Several group members of the Advanced Internet Research Group at University of Amsterdam are researching the Generic AAA principles in both a formal and empirical way. The outcome of this research is aimed at developing an Open Grid Services Architecture (OGSA) based open source toolkit for a J2EE platform that will enable application developers to incorporate Generic AAA functions as part of their workflow management.

Project Results - Early Demos at iGRID2002
Internet2 Landspeed Records (I2LSR)

Thanks to the exceptional cooperation spirit between the European and North American teams involved in the DataTAG project, remarkable results have been achieved in a very short while, in the areas of: (1) Interoperability between, Globus based, European and US Grid projects as demonstrated during the IST2002, SC2002 and IST2003 conferences. (2) Grid related network research (i.e. High Performance Transport Protocols, Quality of Service (QoS),and Advance Bandwidth Reservation).

Internet2 LSRs - New Internet2 Land-Speed Record
Established by a Caltech-CERN Team

Internet2 Land Speed Record • I2LSR Contest Rules • Evolution of the I2LSR in Gigabit/second • High Performance Transport • Latest IPv4 & IPv6 I2LSR Records • The DataTAG test-bed and the extensions to the Caltech/CENIC PoP in Los Angeles • Evolution of the I2LSR using terabit-meters/second metrics • Relevance of these records to the HEP & Grid communities

Newest IPv4 LSR - Data Transfer
Internet2 Land Speed Record

From Starlight in Chicago (USA) to CERN in Geneva (Switzerland), 1.1 TeraByte of data has flown across 7’067 Km in less than half an hour, at the TCP rate of 5.44 Gbps i.e. 38,420.54 petabit-meters per second. This speed record is equivalent to: (1) Transferring a full 680 Mbytes CD in 1 second (i.e. 3600 CDs/hour); (2) Transferring 450 full length DVD movies in one hour (i.e. 1 DVD in 8 seconds)

LSR Cern/Caltech - Press Release [15.10.2003]
CERN and Caltech join forces to smash Internet speed record

CERN* and California Institute of Technology (Caltech) will tomorrow receive an award for transferring over a Terabyte of data across 7,000 km of network at 5.44 gigabits per second (Gbps), smashing the old record of 2.38 Gbps achieved in February between CERN in Geneva and Sunnyvale in California by a Caltech, CERN, Los Alamos National Laboratory and Stanford Linear Accelerator Center team.

IPv4 LSR Set-Up - IPv4 Record Set-Up

Internet2 Landspeed Record (category TCP/IPv4 single stream). Established on October 1 2003 by Caltech and CERN within the DataTAG project framework, using iperf. Distance: 7’067 Km of network - Geneva-Chicago. Throughput of 5.44 Gbits/sec (1.1 Terabyte of data transferred in 26 minutes). Results: 38’420.54 Terabit-meters/second.

IPv6 LSR Set-Up - IPv6 Record Set-Up

Internet2 Landspeed Record (category TCP/IPv6 single stream) By Caltech, CERN, within the DataTAG project framework Established on May 6, 2003 using iperf. Distance: 7’067 Km of network - Geneva-Chicago. Throughput of 983Mb/sec (412 Gigabytes transferred in one hour). Results: 6’947 Terabit-meters/second.

TestBed Generals - Trans-Atlantic Test-Bed
Main Technical Characteristics

Next generation optical transport networks with 40Gbps capabilities are expected to be based on the ITU’s G.709 standard also known as “digital wrapper”. Unlike today’s long distance telecommunications networks that are restricted to transporting SONET/SDH frames, these new networks will also have the capability to transport 1 Gigabit Ethernet, 10 Gigabit Ethernet and several other types of frames transparently. At the outset, the DataTAG project decided to build a multi-vendor testbed on top of a layer 2 Gigabit Ethernet transport network in order to get maximum flexibility and transparency.

TestBed Technical - Trans-Atlantic Test-Bed
Phase I (2.5Gbps) & Phase II (10Gbps)

Despite the existence of a 10Gigabit Ethernet standard (WAN-PHY) for transporting Ethernet frames over SONET/SDH framed circuits, there is a lack of commercial layer 1 products, likewise there was also a lack of proven commercial layer 2 products at the time the technical decision had to be made. Since then, the Force10 WAN-PHY solution has been demonstrated across the Global Crossing DWDM infrastructure between Geneva and Amsterdam. In order to meet DataTAG’s requirement to allow native 10GigE connections to the testbed, a layer 2 emulation solution based on Juniper T320 routers has therefore been deployed initially.

FAST Protocol - Fast TCP
California Institute of Technology

Current TCP Reno protocol has a number of design problems that leads to instability and low performance as networks continue to scale up in capacity and size. FAST tries to achieve high performance, fairness, and stability. Each FAST TCP connection has an explicit equilibrium state, enables it to achieve both stability and high performance. When FAST TCP is far away from this equilibrium, it rapidly converges toward the equilibrium, as shown in the figure above. As FAST TCP approaches the equilibrium, it slows down to avoid overshoot, hence maintaining stability and performance.

GRID Analysis - ICT-4D
Caltech/CERN Grid Analysis Demonstration

Description: Our demonstration will show an example LHC physics analysis, which makes use of several software and hardware components of the next-generation Data Grid being developed to support the work of scientists resident in many world regions who are working on LHC. Specifically, we will make use of a Web services portal architecture called Clarens, developed at the California Institute of Technology (Caltech) for scientific data and services. The Clarens dataserver includes Grid-based authentication and services for a range of clients that include server-class systems, through personal desktops, laptops, to handheld PDA devices.

MONALISA - MONitoring Agents
using A Large Integrated Services Architecture

The MonaLISA (Monitoring Agents in A Large Integrated Services Architecture) system provides a distributed monitoring service. MonaLISA is based on a scalable Dynamic Distributed Services Architecturew implemented using JAVA/JINI and Web Services technologies. The scalability of the system derives from the use of multi-threaded Station Servers to host a variety of loosely coupled self- describing dynamic services or agents and the ability of each service to register itself and then to be discovered and used by any other services, or clients that require such information.