2025-09 Public Report

Unscheduled:

• September 30th: We experienced signal degradation on the fiber stretch between Hjälta and Nysätter affecting multiple services. Optical levels are now back to normal all the services have been restored.
• September 30th: The link between Rantajärvi - Pajala went down. The fiber was damaged in a well in Pajala municipality when another cable being dug up pulled and broke this cable. The cable has been repaired and spliced.
  September 23rd: The link between Kalmar and Växjö was down. After signal optimization, link restored.
• September 22nd: An unannounced maintenance caused an outage on the fiber stretch between Umeå and Nordmaling.
• September 22nd: The link between Gällivare and Jokkmokk went down due to an unannounced maintenance.
• September 18th: The link between Borgvik and Torsby was down due to fiber problem.
• September 16th: The link between Åsen and Sveg was down due to unannounced maintenance.
• September 15th: The backbone link between Malmö - ESS was down due to a fiber issue.
• September 14th: The link to JU went down due to power maintenance on-site by JU.
• September 9th: The link between Frinnaryd and Jönköping was down after the fiber maintenance due to incorrect positioning of the RX/TX cables by the provider. Cables were correctly reconnected after identification of the issue, and the link was restored.
• September 4th: The link between Boden and Luleå went down. The issue was resolved by reseating the card.
• September 4th: The link between Uppsala - Litslena went down due to unannounced fiber maintenance carried out by provider.
• August 22nd: What started as a degradation of a few dB on the link between Övertorneå - Rantajärvi turned out to be a damaged fiber caused by road work.

Scheduled:

• September 29th: Provider performed fiber maintenance in Lund. This affected the connection to RISE Scheelevägen 17.
• September 29th: Following provider maintenance, signal degradation was observed between Hjälta and Nysätter. Optical levels are now back to normal all the services have been restored.
• September 25th: Provider performed cable maintenance on the stretch between Boden and Luleå.
• September 23rd: Provider performed fiber maintenance between Stockholm and Södertälje.
• September 23rd: Provider performed emergency fiber maintenance between Kiruna - Gällivare.
• September 22nd: Provider performed fiber maintenance in Stockholm.
• September 18th: Provider performed fiber maintenance between Kilforsen - Storfinnforsen.
• September 16th: Provider performed planned cable maintenance in Stockholm affecting the links towards Marie Cedershiöld University (ESH). 
• September 15th: SUNET performed emergency hardware maintenance to replace optical equipment in Stockholm.
• September 14th: Provider performed fiber maintenance in Gothenburg.
• September 9th: Provider performed network optimizations in Kristinehamn, which affected the connection to RISE Öståsgatan 25.
• September 8th: Provider performed a fiber maintenance in Frinnaryd that affected the fiber between Frinnaryd - Jönköping, however the link did not come back up as expected after the maintenance. A new outage ticket was created to track the issue: SUNET-2498 Link down (Jönköping - Frinnaryd).  
• September 8th: Provider performed a rerouting maintenance between Gällivare - Jokkmokk.
• September 3rd: Due to an issue with an optical component, wavelengths for DU and FUNET was re-routed to ensure their stability.
• September 1st: SUNET deployed active live monitoring units for all fiber stretches on the circuit going through Kalix.
• August 31st: Provider performed fiber maintenance that affected one of the links to DDB.