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This configuration is the most resilient setup, with service availability of 99.999%, and the capability to deliver capacity up to 100Gbps per port.
Figure 1: NREN is connected to GÉANT through the Juniper MX
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This configuration is a highly resilient setup, with 99.99% service availability and delivered capacity up to 100Gbps per port.
Figure 2: Multi-Homed NRENs backup
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This configuration can be as resilient as required but availability figures will depend on the exact setup and the selected provider. Capacity up to 100Gbps per port is available on GÉANT equipment.
Figure 3: Example of long-haul connectivity
Load Sharing
When an NREN connects to more than one PoP, it is possible to request for the load to be shared across the number of accesses available, as seen below in Figure 4.
Figure 4: Example of load sharing on multiple PoPs
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When load sharing is enabled, the total volume of traffic across all the active accesses must remain within the NREN-subscribed 's primary IP capacity.
Routing Information
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The management demarcation point between GÉANT and the NREN network is a port on the Optical Distribution Frame (ODF) rack, as described in Figure 8, below. The exact port will be specified at the time of the connection.
Figure 5: Illustration of the management demarcation point
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The table below shows the three types of access available to connect to GÉANT, with their associated SLTs.
| Scope | MeasurementMaMSsdMeasurement | SLT |
|---|---|---|
| NRENs diverse connections to GÉANT routers | Service availability | 99.999%90% |
| Multi-homed NRENs connected to GÉANT with third-party managed circuits | Service availability | 99.9% 90% |
| Single-homed NRENs | Service availability | 99.4% 90% (may vary, depending on sub-providers) |
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| Scope | Measurement | SLT |
|---|---|---|
| ALL NRENs | Time to respond to a faultTimeTdffault | 15 minutes |
| GÉANT PoPs in Europe | Time to fix a fault | 5 hours 12 hours |
The GÉANT Operation Centre (OC) provides 24×7 support throughout the year. Notifications are issued to the affected partner within 15 minutes of incident detection by the central monitoring system.
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Any requirement for bespoke reporting mechanism for GÉANT IP traffic statistics and availability should be discussed with the GÉANT Partner Relations Team (partner-relations@geant.netorg).
Requesting additional GÉANT Access Capacity
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In case of a connection being provided over a managed wavelength, the lead time will vary from provider to provider. Delivery times will be confirmed on a case-by-case basis. Please contact the Partner Relations team for more information: partner-relations@geant.netorg
| Service | Delivery time |
|---|---|
| GÉANT IP upgrade | 10 days |
| GÉANT IP upgrade requiring further physical capacity | 10 weeks |
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Charges may apply to backhaul a backup circuit to a neighbouring PoP to increase the resilience required to reach 99.999% service availability.
A one-off charge applies for the backhaul of a backup circuit.
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For more information or questions, please email partner-relations@geant.netorg.