|Ticket Number:||20191120_1||Ticket State:||CLOSED|
|Ticket Opened:||2019-11-20 13:14||Ticket Closed:||2019-11-26 16:42|
|Ticket Description:||interruption of backbone fiber between Arth-Goldau and Rodi-Fiesso|
Problem Description:The fibre link between Arth-Goldau and Rodi-Fiesso is interrupted since 08:06.
The reason is currently unknown. SBB is informed - investigation is in progress.
Network traffic has automatically switched to backup links. There is still redundancy for most of our services.
Affected:From 2019-11-20 08:06 until 2019-11-26 16:00
Impact: no impact
Sites: PSIE-CSCSBT, PSIW-CSCSRZ
Fiber link restored. We are still on the same cable, but using another fiber bundle. All optical systems are running fine.
No quick fix is possible. SBB plans to splice us onto an existing cable currently bypassing our site Rodi. The intervention is scheduled for Tuesday Nov 26.
SBB is trying to swap some services this afternoon and switch us back to the old fiber path.
In depth analysis of measurement data shows a massive increase (+50%) of span distance Goldau - Rodi, which is contrary to the providers statement to have used undamaged fibers in the same cable as before. The provider has now confirmed that indeed a new, much longer fiber route has been patched yesterday. He is currently investigating options to give us a shorter route which is acceptable for our optical system.
Troubleshooting in Goldau terminated.
fibes reconnected after SBB has done excessive troubleshooting along the cable; although fiber path is complete, our systems do not work properly.
our own measurements from Goldau show a fiber break near Erstfeld
SBB informs to have fixed the problem; our services remain down, however. We keep on investigating...
SBB has located a damaged fiber cable between Erstfeld and Göschenen. They plan to switch us to another cable, but cannot give a RFS time at this moment.
We called SBB - but there is no news so far.
SBB called and promised to investigate the problem with high priority.
SBB OMC has been informed about the problem.
All times are in local Swiss time CET / CEST.
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or call +41 44 268 15 30.