nsdgtw is syncing alarms to CSM. However after the ticket is closed in CSM the alarm is not getting closed in UIM.
Sample from nsdgtw log
notice the time difference.
Feb 22 04:02:17:910 [attach_socket, nsdgtw] Retrieving all closed incident tickets from NSD for date range: 02/22/2018 11:52:17 AM to 02/22/2018 12:02:17 PM
At 04:02:17 it is to looking to close alarms from 12:02:17 PM
The probe configuration for time and date format must match that of CSM.