TEN-155 at 5 Framework conference: most circuits have traffic nowEssen 16 Mar 99The MECCANO Project is the first user of the TEN-155 Managed Bandwidth Service. For the first time a group of European researchers benefited from dedicated bandwidth made available in the TEN-155 network. The migration of the national research networks from TEN-34 to TEN-155 continued in January and February. The link between the German and Nordic research networks was brought into service on 6 January. The French research network, RENATER, was connected on 15 January, as was the Czech research network CESnet. Greece was linked to TEN-155 after the line between the Netherlands and Greece passed acceptance testing on 21 January. On 3 February, the links between Austria and Germany, as well as between Italy and Germany came into service. The connection between Austria and Hungary became operational on 2 February. A link connecting the Polish research network POL-34 to the TEN-155 PoP in Frankfurt will become operational shortly. In January access port availability for seven of the then ten to TEN-155 connected national research networks was 99.99% or higher. RedIRIS, the Spanish research network, suffered some unscheduled connectivity loss due to various problems, including power failure, line and configuration faults. The bad weather which affected the satellite connection was still the main cause of a few long-period intermittent losses of connectivity for the Portuguese research network, resulting in a 99.12% connectivity. Immediately after TEN-155 succeeded TEN-34, DANTE's Network Planning and Engineering team carried out an analysis of the impact of providing more capacity to the European research community. The analysis compared inter-NRN traffic measurements on TEN-34 in November 1998 (the last month of full operation of TEN-34) and on TEN-155 in January 1999. The measurements (daytime averages expressed in Mbps) were derived from DANTE's inter-NRN statistics package, Purgatorio. The analysis emphasises that inter-NRN traffic had increased by almost 50% which outlines both the benefits and need for more bandwidth to support the European research community. It is expected that once all national research networks have migrated to TEN-155, the increase of inter-NRN traffic will be even more significant.
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