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

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

We have installed net_connect and icmp on the hub that robots report to and monitor them from there. Sometimes we are seeing alarms related to reporting robots when they are in maintenance mode.  This behavior has also been observed for alarms generated by the snmptd probe.

Environment

Release: UIM 20.4.x and 23.4.x
Component: maintenance_mode

Cause

The icmp probe was sending the alarm with a device_id that was in uppercase. Because of this nas was allowing that alarm past scrutiny even though the device is actually in a valid active maintenance schedule.

Resolution

Add the following (raw configure) to the 'setup' section of that nas probe:

upcase_dev_id = yes

Deactivate nas and verify that the port and pid are gone, then activate the nas probe.

Additional Information

This behavior has also been observed in the snmptd probe.  The same resolution applied.