Ticket info
| Ticket number | 31833 |
| Context | NOC-NetworkServices |
| Ticket Status | Close |
| Ticket Source | GARR |
| Ticket Type | Incident |
| Ticket open time | 15/09/2025 08:06 |
| Ticket close time | 16/09/2025 14:01 |
| Affected Link | E2E ECMWF TC2 - CSCS lato ECMWF TC2 GEANT IP service backup [GARR AP2] - PoP Milano Lancetti backup GEANT MIL1 management - PoP Milano Lancetti GEANT Peering backup [IAS-bck] - PoP Milano Lancetti backup L3VPN LHCONE GEANT -- PoP Milano-Lancetti L3VPN LHCONE KIAE via AMS L3VPN LHCONE KIAE via MOS Peering KIAE via AMS e2e ExpressRoute 2 Uni-Milano Bicocca - lato GEANT e2e ExpressRoute 2 Uni-Milano Bicocca - lato MB00 e2e ExpressRoute 2 Uni-Roma2 - lato GEANT e2e ExpressRoute 2 Uni-Roma2 - lato RM4 e2e LHCOPN CERN link1 IPv4 e2e LHCOPN CERN link1 IPv6 |
| Affected Service | GEANT IAS GEANT IP service GEANT L3VPN LHCONE Peering KIAE Peering KIAE LHCONE e2e ECMWF - CSCS (Lugano) e2e ExpressRoute Uni-Milano Bicocca e2e ExpressRoute Uni-Milano Bicocca - lato GEANT e2e ExpressRoute Uni-Roma2 - lato GEANT e2e ExpressRoute Uni-Roma2 - lato RM4 e2e LHCOPN MILANO-CERN |
| Problem type | Fault |
| Problem description | Link down |
| Problem fixer | Supplier |
| Problem start | 15/09/2025 03:21 |
| Problem end | 15/09/2025 16:40 |
| Subject | Network Services |
| History | 15/09/2025 08:06 An outage has been observed on the named services. The Operations Centre is investigating. 15/09/2025 14:23 Added affected link 15/09/2025 15:37 Geant OC has been informed that the incident was caused by fiber cut in north of Italy. Service is currently down on monitoring. No ETR provided at the moment. 15/09/2025 18:38 The break point has been identified at a distance of around 16 Kms from Milan Geant PoP provider is informed and a site team should be dispatched at any moment. No ETR has been provided yet |
| Problem fix | The reason for this outage was a fiber cut approximately 16 Kms from Milan which has now been fixed. |