SWITCHlan Trouble Tickets

Transparency is very important to us. We therefore publish all trouble tickets about issues that have an impact on our customers. We show both currently open tickets as well as all closed tickets.

Ticket 20070418_1

Ticket Number: 20070418_1Ticket State: CLOSED
Ticket Opened: 2007-04-18 13:02Ticket Closed: 2008-01-16 17:01
Ticket Description: Scheduled power interruption in Goldau
Scheduled Starttime: Scheduled Endtime:

Problem Description:

2007-04-23 02:00 - 04:30
Power interruption in Goldau station due to maintenance work of power company.
The UPS will most probably have not enough capacity to backup the whole period of interruption.

Affected:

From 2007-4-23 03:48 - 04:59
Impact:

Total Loss of connectivity:
CPF link CNAF-GRIDKA-LHCOPN-001 between Manno and Basel

no more redundancy:
Sites of east ring, in Tessin, VSnet, FHZ.
These sites remained reachable through redundant path - all traffic was rerouted automatically.


Actions:


2007-04-23 08:35
The power outage lastet from 01:30 until 04:00
The UPS was able to back up power supply until 03:48
Between 03:48 and 04:00 the DWDM equipment finally lost power and all links passing Goldau PoP went down.
At 04:00 power was back again and all our equipment and links came up automatically.


For all questions about this ticket, please send mail to noc@switch.ch
or call +41 44 268 15 30.