SWITCHlan Trouble Tickets

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Ticket 20211025_1

Ticket Number: 20211025_1Ticket State: CLOSED
Ticket Opened: 2021-10-25 14:41Ticket Closed: 2021-10-25 14:41
Ticket Description: Router shutdown after temperature rise at PoP ZHAW Winterthur (24.10.2021)

Problem Description:

On Sunday night 24th October 2021 a failure with the data center cooling equipment caused our access router swiWI1 to overheat. To protect itself from overheating the router initiated an automatic shutdown. After this condition the router has to be power-cycled by hand.


From 2021-10-24 02:51 until 2021-10-24 10:32
Impact: no more redundancy
Service: network access
Sites: ZHAW


2021-10-24 10:30
Router swiWI1 back online after manual reboot (ROMMON) via OOB and serial port. All services and links restored.

2021-10-24 10:15
We asked ZHAW IT staff to power-cycle our router swiWI1.

2021-10-24 09:05
ZHAW IT staff informed us by e-mail about an issue with the data center cooling. Router swiWI1 still unreachable.

2021-10-24 02:51
swiWI1 Router's temperature ALARM sent by our monitoring. Router shutting down.

2021-10-24 00:57
swiWI1 Router's temperature WARNING sent by our monitoring

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.