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Circuit-Related Services:

Monitoring:

Early in the GÉANT2 project it has been recognized that new tools were needed to monitor end-

to-end layer 1 and layer 2 circuits composed from multiple domains. An end-to-end monitoring

concept (E2EMON) has been created. This has been adapted to the GÉANT2 perfSONAR

monitoring framework. It now serves - among others - the LHC optical private network.

Recently, a customized version of the perfSONAR MDM service has been proposed to monitor

the IP operations of the LHC Optical private Network (LHCOPN).

Provisioning:

Looking to the future of international user-dedicated circuits, GÉANT2's AutoBAHN research

activity is developing a multi-domain system to provision on-demand point-to-point circuits.

Bandwidth on Demand (BoD) balances use of the network by highly demanding applications, and

priorities traffic so a faster and better level of service is received. The network supplies the ability

to transfer large amounts of information quickly and effectively, with the capacity available

whenever needed.

AutoBAHN has as its primary objective to provide automatic bandwidth management for

heterogeneous European NRENs' infrastructures. The network technologies initially targeted by

AutoBAHN are Ethernet and SDH, which are the most common among potential system users.

The AutoBAHN system is based on the Inter-Domain Manager (IDM), which is responsible for

inter-domain aspects of circuit reservation. This includes inter-domain communication, resource

negotiation among domains, resource scheduling, and topology advertisements.

GÉANT2 International Connectivity:

As with previous generations of European Backbone, GÉANT2 provides a significant number of

connections to counterpart research and education networks beyond Europe.

Connectivity to the US is provided on four 10Gbps links, two dedicated to the IP layer and two

via diverse suppliers (London-New York and Paris-New York) dedicated to point-to-point

connections (offering space for up to eighteen 1 Gbps Ethernet circuits). The first two 1 Gbps

circuits have been provisioned and are operational serving the HEP community between IN2P3 in

France and Fermilab in the US.

GEANT2 and ESnet cooperate closely to carry transatlantic traffic among the LHC Tier 1 centers

in the US and the Tier 2 centers in Europe (where the bandwidth between New York and

Amsterdam is provided by US LHCNet).

Japan's SuperSinet network peers directly with GÉANT2 in New York, whilst India is connected

to Europe through a 45 Mbps circuit to Milan (in the process of being upgraded to 155Mbps).

Main users of the connectivity between India and Europe are EuIndiaGrid and CERN/LHC. The

South African educational network, TENET, connects to GÉANT2 at 1 GigE via a connection

made available to the Ubuntunet Alliance, an alliance of NRENs in sub-Saharan Africa.

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