SWITCHlan Trouble Tickets

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Ticket 20210618_1

Ticket Number: 20210618_1Ticket State: OPEN
Ticket Opened: 2021-06-18 13:43Ticket Closed:
Ticket Description: Interruption on the fiber route Villigen - Regensdorf - Zürich

Problem Description:

There is a problem on the fiber route Villigen - Regensdorf - Zürich. We lost our services between PSI-West and Zürich-ZHDK, as well as local access to FFHS in Regensdorf.

*** current situation: all services up using special temporary settings in order to compensate the fiber disorder ***


From 2021-06-17 15:14 until 2021-06-18 08:18
Impact: Total loss of connectivity
Service: P2P/OPN


2021-06-23 18:10
more analysis has been done to understand the unannounced cable modifications of June 17. To properly fix the problem, splicing work in a big fiber joint is needed which requires a maintenance window. In the meantime, SWITCH has improved its temporary workaround - it is now redundant.

2021-06-22 17:58
the fiber provider is planning to fix the problem tomorrow June 23

2021-06-21 09:08
fiber provider is on the way to Regensdorf for troubleshooting

2021-06-18 16:28
The fiber provider cannot enter the building today, but plans to do so on Monday morning.

2021-06-18 11:52
photos taken on-site this morning show the presence of a new fiber panel which indeed carries our fiber links

2021-06-18 10:15
fiber provider will investigate whether any manipulations were made on-site

2021-06-18 08:18
access to FFHS restored by temporary changing configurations of links to Villigen and Zürich [for yet unknown reasons, the fiber pairs from east and west have been swapped]

2021-06-17 18:23
SWITCHlan service between PSI-West and Zürich restored; FFHS remains inaccessible, however

2021-06-17 15:14
fiber route Villigen - Regensdorf - Zürich interrupted

All times are in local Swiss time CET / CEST.
For all questions about this ticket, please send mail to noc@switch.ch
or call +41 44 268 15 30.