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Ticket 20191219_3

Ticket Number: 20191219_3Ticket State: CLOSED
Ticket Opened: 2019-12-19 11:26Ticket Closed: 2020-01-10 16:21
Ticket Description: Scheduled DWDM link interruption between MY and SI
Scheduled Starttime: 2019-12-19 13:00:00Scheduled Endtime: 2019-12-19 14:00:00

Problem Description:

A DWDM amplifier on the link between MY (Martigny) and SI (Sion) is reporting some alarms.
It was advised by the manufacturer to power-cycle the card to see if the alarm raises any concerns. The power cycle will interrupt the link for about 2 minutes.
Given the long holidays approaching, we want make this preventive maintenance today afternoon, giving us reaction time for tomorrow, in worst case scenario, where the amplifier does not behave as expected.

All services are redundant and no service interruption is expected.


From 2019-12-19 13:00 until 2019-12-19 14:00
Impact: no more redundancy
Service: P2P/OPN
Sites: EPFL-Sion, RERO-UNIL-my2-ls2, UNIL-IUKB-ls3-si2, VSnet-vi2-my2


2020-01-10 16:21
The power cycle was done in December, the module recovered successfully and no further alarms are reported.

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.