|Ticket Number:||20171127_1||Ticket State:||CLOSED|
|Ticket Opened:||2017-11-27 15:02||Ticket Closed:||2017-11-29 16:21|
|Ticket Description:||Scheduled Upgrade of all Optical Nodes in SWITCH backbone|
|Scheduled Starttime:||2017-11-27 15:02:00||Scheduled Endtime:||2017-12-01 18:00:00|
Problem Description:A major software upgrade of our optical equipment is planned between 27.11 and 01.12.
The upgrade is gradual, split into 3-4 days and closely monitored.
Please note that we expect no impact on any services during this upgrade and please inform us if you see any unexpected network behavior.
All network elements and management systems have been successfully upgraded.
After a small ROADM incident (Ticket 20171127_2) the upgrade procedure was halted. The issue seems to be resolved. We will proceed further with the upgrades soon.
For all questions about this ticket, please send mail to firstname.lastname@example.org
or call +41 44 268 15 30.