nic_monitor probe alert configuration for interface

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

Started monitoring network interface status with nic_monitor MCS profile

Making the interface down with the below command on the server.

 

ifdown eth1 

 

The interface does not show the IP for the interface which is made down with above command so should reflect as down.

The interface status is showing as UP(1) in above use case 

 

Environment

DX UIM 20.4 CUx

probe: nic_monitor (mcs)

OS RHEL 9.3

 

Resolution

The nic_monitor probe uses below file to get the operational status for the interface based on OS

For linux only

private final String SYS_CLASS_NET = "/sys/class/net";
This is the file from which probe is reading data

For windows it uses powershell

private final String SYS_CLASS_DEV_OPERSTATE = "/sys/class/net/{0}/operstate";
this is status
i.setStatus(status);

 

Also ifup /ifdown are deprecated linux commands

Can check with alternative newer commands for linux 

 $ ip link set <interface> down / up 

Additional Information

sys/class in Linux