Administer > Monitor Network Health > Configure NNMi Monitoring Behavior > About Threshold Settings Provided by NNMi

About Threshold Settings Provided by NNMi

Instruct NNMi to monitor thresholds for devices throughout your network (for example, Interface Input Utilization).You can also do the following when any of these thresholds are enabled:

  • Configure incidents related to these thresholds, for more information: Concept Link IconSee Also
  • Configure custom incident attributes for these thresholds,for more information: Concept Link IconSee Also
  • There are many benefits to using these thresholds provided by NNMi:

    1. NNMi gathers Monitored Attribute data, evaluates any established thresholds to determine State values for the devices you are monitoring.

Tip If these thresholds do not meet all of your team's needs, write your own. See Configure Threshold Information for a Custom Poller Collection (your Custom Poller thresholds affect the Custom Polled Instance State, and can be configured to affect Node Status and generate associated incidents).

Available Threshold Attributes for Monitoring Configuration
NNMi Attributes available for Thresholds Relevant for: Controlled by:
Interface Group: Threshold Settings Interface Group: Baseline Settings Node Group: Threshold Settings Node Group: Baseline Settings
Order applied (low to high #): 1st Group Order #s
1 - x
2nd Group Order #s
1 - x
3rd Group Order #s
1 - x
4th Group Order #s
1 - x
    X X Fault Polling

Prerequisite for ICMP monitoring:

  1. Scroll down to the Fault Monitoring section, locate the ICMP Fault Monitoring settings. The  Enable Management Address Polling must be enabled.

Tip NNMi administrators can check network latency for a Node Group or Interface Group by adjusting the following for the management addresses associated with the specified group of nodes or interfaces:

  • ICMP polling frequency
  • ICMP echo request packet data payload size

Threshold Settings for NNM iSPI Performance for Metrics

Requires Network Node Manager iSPI Performance for Metrics Software (NNM iSPI Performance for Metrics). To populate performance data in the dashboard views or enhance NNM iSPI Performance for Metrics reports by sharing NNMi configuration settings, install the optional Network Performance Server (NPS).

NNM iSPI Performance for Metrics provides exception reports to track the frequency of threshold breaches. You can open these reports with Actions NNM iSPI PerformanceReporting - Report Menu in the incident, node, or interface views and forms.

The following thresholds apply to Nodes (see Node Settings for Monitoring):

Prerequisite for these Node Group Thresholds:

  1. Scroll down to the SNMP Performance Monitoring section.
  2. Scroll down to the Sensor Performance Monitoring group box.
  3. Select the following:

    •  Enable Node Sensor Performance Polling ( must be enabled to monitor buffer, CP, and memory).
    •  Enable Physical Sensor Performance Polling (must be enabled to monitor backplane).

Available Node Group Threshold Attributes for Monitoring Configuration
NNM iSPI Performance for Metrics Monitored Attributes available for Thresholds Relevant for: Controlled by:
Interface Group: Threshold Settings Interface Group: Baseline Settings Node Group: Threshold Settings Node Group: Baseline Settings
Order applied (low to high #): 1st Group Order #s
1 - x
2nd Group Order #s
1 - x
3rd Group Order #s
1 - x
4th Group Order #s
1 - x

Backplane Utilization

Threshold based on the percentage of backplane usage compared to the total amount of available backplane resources.

    X X Performance Polling: Physical Sensor
    X   Performance Polling: Node Sensor
    X   Performance Polling: Node Sensor
    X X Performance Polling: Node Sensor
    X X Performance Polling: Node Sensor
    X X Performance Polling: Node Sensor
    X X Performance Polling: Node Sensor
    X X Performance Polling: Node Sensor
    X X Performance Polling: Node Sensor

The Monitored attributes in the following table are available as Interface Group thresholds and Node Group thresholds. For each monitored Interface, NNMi applies any relevant Interface Group threshold configurations first. If none are available, NNMi applies any relevant Node Group threshold configurations.

The following thresholds apply to Interfaces (see Interface Settings for Monitoring):

Prerequisite for these Interface Group thresholds:

  1. Scroll down to the SNMP Performance Monitoring section, locate the LAN Performance Monitoring settings. The  Enable Interface Performance Polling must be enabled.
Available Interface Group Threshold Attributes for Monitoring Configuration
NNM iSPI Performance for Metrics Monitored Attributes available for Thresholds Relevant for: Controlled by:
Interface Group: Threshold Settings Interface Group: Baseline Settings Node Group: Threshold Settings Node Group: Baseline Settings
Order applied (low to high #): 1st Group Order #s
1 - x
2nd Group Order #s
1 - x
3rd Group Order #s
1 - x
4th Group Order #s
1 - x
X   X   Performance Polling
X   X   Performance Polling
X   X   Performance Polling
X   X   Performance Polling
X   X   Performance Polling
X X X X Performance Polling
X   X   Performance Polling
X   X   Performance Polling
X   X   Performance Polling
X X X X Performance Polling