Network disturbance between Enköping, Järfälla and Uppsala - Resolved

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Timezone: CEST
Incident start: 2018-05-16 09:36
Incident description: Network Disruption on many Wavelengths
Current estimated time of repair/resolution(ETR):

Affected Users: Enterprise Segment confirmed, investigating Private segment
Affected Services: WLS
Affected geographical area: Enköping, Järfälla and Uppsala

Impact: Unprotected services down
Magnitude: High
Cause of disturbance: Fibre break
Current progress report:

2018-05-16 09:36 – Alarms received by IP-Only NOC.
2018-05-16 09:45 – Third linde engaged for troubleshooting.
2018-05-16 09:55 – IP-Only technician dispatched to site. Additional external technician ordered.
2018-05-16 10:00 – IP-Only technician en route.
2018-05-16 10:15 – Working to expediate externally ordered technician.
2018-05-16 10:30 – Technician on site measuring fibre cut. Fault located.
2018-05-16 11:00 – Several cables are cut. Excavator on site. Currently assembling a splicing team, No ETA yet.
2018-05-16 11:30 – Fibre team dispatched. The initial estimation is that the work will require digging team to excavate the cable for new fibre wells to be placed on each side of the break. The excavation is estimated to take 4 hours before splicing can begin. The fibre break is closely located next to a well trafficked road which may delay the repair work. No Estimate time or repair is yet available.
2018-05-16 12:00 – Materials collected and head technician is heading out. The normally two most time-consuming tasks of getting a digger and closing off roads is already done, which is very beneficial for the work ahead. An ETR of 2018-05-17 04:00. More precise estimates will follow as work commences.
2018-05-16 12:30 – Technicians on route.
2018-05-16 12:50 – Head technician arrived on site 12:31. Excavation work has begun.
2018-05-16 13:30 – Excavation work continues.
2018-05-16 14:30 – Excavation work continues.
2018-05-16 15:30 – Excavation work continues.
2018-05-16 17:00 – Excavation work continues. On one side of the fibre break the technicians are installing fibre well and duct to be able to start splicing earlier.
2018-05-16 18:00 – Excavation work and preparation for splicing continues.
2018-05-16 19:00 – Excavation is soon to be completed, due to space restrictions and a large difference in surface level the excavation had to be deeper then first anticipated for the well to be at the correct depth. The splicing is estimated to begin around 23:00 CEST
2018-05-16 20:00 – Preparation for splicing is underway.
2018-05-16 21:00 – Preparation for splicing is underway.
2018-05-16 23:00 – Splicing in progress.
2018-05-17 00:01 – First splice completed, repair team moving to second splice location.
2018-05-18 01:38 – Splicing of active fibers is completed, all services should be restored but the technicians are not hands off yet so minor disturbances may still occur for another 30 minutes. If you are experiencing problems still please call us right away. We will update you as soon as the technicians are hands off.
2018-05-18 02:19 – Technicians are now hands off.

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End customers are kindly referred to their individual service providers.

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