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BREN forums • View topic - GÈANT - state of the art

GÈANT - state of the art

Пан-Европейската Изследователска и Образователна Мрежа

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GÈANT - state of the art

Postby nina » 19 Mar 2009, 11:47

European research networking is state-of- the-art in providing advanced services to the research and educational community. Nowhere else in the world has services to the R&E community at this level of performance, flexibility and choice.

The unique advantages of GÉANT3 are:
- high performance compared to many commercial operators. A particular advantage is the easy and cost-efficient access to bandwidth (through new technologies).
- flexibility to provide innovative solutions at the different network layers of the network in a much shorter timescale
- specific focus on research and education support
- driven by its users as NRENs are well connected to their R&E user bases

Currently, the European networking environment offers the following from the GÈANT2 hybrid network and management services:

1. Full integration of all connected NRENs with a resilient IP network, offering IPv4 and IPv6 services, based predominantly on leased dark fibres (with an increasing preference for using NREN-owned cross-border fibres). In areas where dark fibre is not available or not cost-effective, connectivity is established using leased lines with up to 10 Gbps capacity.
Due to the fact that the leased dark fibers are lit using state-of-the-art DWDM equipment, wholly owned and operated by the GÉANT consortium, the GÉANT3 network can be sized in such a way that all demands from users can be served. It can therefore provide outstanding performance in terms of vital quality parameters, as, for example, availability, packet loss and one-way delay characteristics)).

On the IP network, innovative services are provided; next to best effort IPv4 unicast, including IPv4 unicast, multicast for both IPv4 and IPv6, and MPLS (MPLS was extensively used in the GÈANT1, but it is not heavily used anymore as usage has shifted to Virtual Private networks (VPNs)).

2. Users who are very demanding in terms of requirements use the dedicated links provided by the GÈANT2 infrastructure, together with the corresponding connectivity provided by the NRENs.

Success stories include radio astronomy (VLBI - Very Long Baseline Interferometry), connection of the European supercomputing centres (DEISA - Distributed European Infrastructure for Supercomputing Applications) and the data distribution network for the Large Hadron Collider, where data is sent from CERN to eleven Tier 1 academic institutions in Europe, Asia, and North America, over dedicated 10Gb/sec links, mainly based on the GÈANT and NREN infrastructure.

GÉANT3 can be flexibly configured to support new projects and is directly under the control of the European R&E networking community so can change its policies and operating procedures to meet the current and future R&E community needs. Having an infrastructure focused on R&E should offer a lot more flexibility and responsiveness to R & E.
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