Getting some alarms for net_connect or icmp when device in maintanance mode

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

Devices monitored by remote probes such as net_connect, icmp, or snmptd may continue to generate alarms during an active maintenance window. These alarms appear in the Operator Console and Infrastructure Manager even though a maintenance schedule is correctly configured for the robot or device. 

Environment

• Product: DX Unified Infrastructure Management (UIM)
• Versions: 20.4.x, 23.4.x (all CU levels)
• Probes Impacted: nas, maintenance_mode, net_connect, icmp, snmptd, ntservices, cdm

Cause

The nas probe fails to suppress the alarm when there is a character case mismatch between the dev_id reported by the monitoring probe and the dev_id stored in the UIM maintenance tables. For example, the icmp probe may report a device_id in uppercase, while the maintenance entry is in lowercase.

Resolution

Follow these steps to apply this a key to the nas config to handle these situations:

• Open the nas probe on the Primary Hub using Raw Configure.
• Navigate to the setup section.
• Add the following key and value:

  upcase_dev_id = yes

• Click OK to save the changes.
• Deactivate the nas probe.
• Verify that the port and PID for the nas probe are gone.
• Activate the nas probe.