2026-05 Public Report

Unscheduled:

• May 21st: The link between Hedenlunda - Dövestad was down. The interruption was due to unannounced planned work by a subcontractor.
• May 19th: The link between Norrköping - Visby was down due to unannounced maintenance.
• May 16th: SUNET detected a major hardware issue on line card in a router in Stockholm. The issue was resolved after rebooting the affected module.
• May 14th: The link between Lund-Växjö experienced flapped. RFO is unknown.
• May 5th: The link between Gällivare - Jokkmokk was down due to fiber issues.

Scheduled:

• May 29th: SUNET performed emergency maintenance to inspect and clean a part of the link between Stockholm and Uppsala.
• May 28th: Provider performed a planned maintenance that affected the link between Ånge - Laforsen.
• May 27th: Provider performed planned fiber maintenance in Boden, affecting the link between Boden-Luleå.
• May 26th: Provider performed maintenance that affected the link between Furudal - Falun.
• May 25th: Provider performed fiber maintenance between Piteå - Skellefteå.
• May 25th: Provider performed fiber maintenance between Hjälta - Nysäter.
• May 21st: SUNET performed emergency maintenance to clean and replace optics in Växjö.
• May 19th: The supplier perform maintenance on the SUNET backbone link between Norrköping and Visby. Link is still down. Troubleshooting will continue in SUNET-3059.
• May 18th: Provider performed fiber maintenance in Malmö.
• May 13th: SUNET and RISE/SP performed a fiber maintenance on the connection towards SP.
• May 12th: Provider performed a fiber maintenance between Hamra - Överby.
• May 12th: SUNET performed software upgrade maintenance on router in Umeå.
• May 12th: Provider performed a fiber maintenance that affected the link between Ånge - Laforsen.
• May 7th: Provider performed a fiber maintenance in Uppsala.
• May 5th: SUNET performed emergency link maintenance to troubleshoot an issue affecting the wavelength between Jönköping -Växjö.
• May 4th: Provider performed a fiber maintenance between Stockholm - Huddinge.