The GÉANT Plus service is offered on the GÉANT network to all GÉANT National Research and Education Networks (NRENs). The service allows NRENs to request point-to-point Ethernet circuits between end points at GÉANT European points-of-presence (PoPs), and to North America and other destinations, on request. The NRENs then provide onward connectivity within their regional network to the required destinations.
Many performance-critical services require network performance levels that cannot be easily met by shared IP services. For example, data-centre backup and replication, real-time mission-critical services and broadcast-quality video need the guaranteed bandwidth and low latency that dedicated circuits offer. It is also very useful for projects with participants in multiple locations, who wish to co-operate as if they were working on the same local network.
Multi-national circuits are typically expensive, have long lead times for delivery and tie the user into lengthy service contracts. The GÉANT Plus service enables user access to point-to-point circuits of between 100Mbps and 10Gbps across an existing, pre-provisioned network that is quick to configure.
Although built on common infrastructure, GÉANT Plus looks like a dedicated service to users. This combines the privacy and availability advantages of a private circuit with the efficiency gains of a shared network.
Technical Description of the Service
Infrastructure
GÉANT Plus offers point-to-point Layer 2 connectivity across GÉANT IP interfaces. It is delivered over dedicated VLANs on the NREN interface.
The standard physical interface to access the GÉANT network can be either 10GE or 100GE. Currently, 100Gbps interfaces are only available for NRENs on GÉANT dark fibre.
Figure 1: Representation of the VLANs within the physical access
Implementation
The GÉANT Plus service appears as a point-to-point connection which NRENs delivereall the way to their users at the NREN campuses.
Figure 2: Full mesh of Labelled-Switched Paths supporting the GEANT Plus service
In the GÉANT backbone, the service is supported by a full mesh of Labelled-Switched Paths (LSPs), ensuring resilience across the entire GÉANT footprint. This dynamic infrastructure allows for a self-healing service, where faults in the backbone are automatically handled by the underlying Interior Gateway Protocol (IGP).
Demarcation Points
The management demarcation point between DANTE and the NREN is a port on the Optical Distribution Frame (ODF) rack, as described in Figure 3, below.
The exact port will be specified at the time of the connection. The responsibility of the GÉANT Operations Centre (OC) ends at the declared demarcation point, patching beyond that point is the responsibility of the ordering NREN.
Figure 3: Illustration of the management demarcation point
Circuits to Destinations Outside of Europe
The primary focus of the GÉANT Plus service is to offer European NRENs the ability to quickly and flexibly provision point-to-point connections. It is also possible to extend the network reach by connecting to non-European links. As GÉANT Plus leverages the IP infrastructure, an NREN connected to the GÉANT network can reach Internet2 and ESnet in the US, and Canarie in Canada.
Requests concerning non-European NRENs can be discussed on a case-by-case basis, as the remote end of the connection needs to be able to accept circuits. For further information please contact the GÉANT Partner Relations Team (partner-relations@geant.net).
Access to Bespoke Solutions
If the requirement for a point-to-point connection does not fit in the current description of the service, the GÉANT Partner Relations Team can be contacted to evaluate the feasibility of a bespoke implementation. Such implementation may incur extra cost.
Please liaise with the GÉANT Partner Relations Team as listed above to discuss possible solutions.