...
A simple example of this is that you will likely what need to be notified when the CPU is high on a Core device, vs an Access switch in Timbuktu. This is part of the NMIS idea of relevance of information in general, not all devices are created equal, some devices deserve better alerting, people of course are created equal.
If you want to just modify and add new thresholds reach read the first section "Using the NMIS GUI to Configure Thresholds", the second section "About Threshold Controls" goes into more details about thresholds.
...
Access the NMIS Models GUI
Access the GUI by clicking on the menu "System -> System Configuration -> NMIS Models", the "NMIS Models" widget will be displayed as shown below. Now this is a BIG form, so clicking on the POP OUT button will place it in its own browser TAB/Window. This is application applicable in NMIS 8.4.8G and onwards.
NMIS 8.4 Example
...
I have selected NMIS 8.6 Common-trhesholdthreshold.nmis to edit, we now just search for the "item" we want to change the threshold for.
...
Indexed Objects like interfaces
- $ifAlias
- $Description
- $ifDescr
- $ifType
- $ifSpeed
- $ifMaxOctets
- $maxBytes
- $maxPackets
$entPhysicalDescr
Newly added indexed objects in NMIS 8.6G
$hrStorageDescr
$hrStorageType
$hrStorageUnits (disk block size)
$hrStorageSize (disk size in blocks)
$hrStorageUsed (disk used in blocks)
$hrDiskSize (disk size in bytes, hrStorageSize * hrStorageUnits)
$hrDiskUsed (disk used in bytes, hrStorageUsed * hrStorageUnits)
$hrDiskFree (disk free in bytes)
Sample Controls
The crontrols controls are little pieces of code which will be evaluated when needed, so you might want to do the following sorts of things
| Result | Control |
|---|---|
| Apply the threshold to all devices in the group "Sales" | $group eq "Sales" |
| Apply the threshold to all devices starting with the IP address 192.168 | $host =~ /192\.168/ |
| Apply the threshold to all Cisco IOS devices | $sysDescr =~ /Cisco IOS/ |
| Use this threshold if the interface speed is between 1 and 5 megabits/second | $ifSpeed <= 5000000 and $ifSpeed >= 1000000 |
| Use this threshold if the interface speed is 10 megabits | $ifSpeed == 10000000 |
| Use this threshold if the interface speed is 100 megabits | $ifSpeed == 100000000 |
| Use this threshold if the interface speed is 1 gigabits | $ifSpeed == 1000000000 |
| Use this threshold if the disk is larger than 100 gigabytes | $hrDiskSize >= 104857600000 |
Threshold Dampening in NMIS
...