Node Groups As Predefined View Filters

This Node Group is used by the Causal Engine. Any devices in this group receive special treatment. When a current member of this group stops responding, the Causal Engine generates a "Node Down" incident and sets the device status to Critical. For example, when a WAN Edge Device is in the shadow of another problem (and, therefore, NNMi would normally not generate an incident about that WAN edge router), NNMi generates a "Node Down" incident because the router is listed in this Important Nodes group.

This Node Group is empty by default. Consider populating this group with critical servers that run important applications and critical WAN routers.

(NNM iSPI Performance) This group automatically becomes a filter for Performance Reports (unless the group has no members). The NNMi administrator can change this default behavior.

Your NNMi administrator can configure a Node Group map to show devices that are connected to Node Group members (one-hop neighbors), but not themselves a member.

A gray halo around the map icon indicates a one-hop neighbor:

Not all one-hop neighbors are shown. Your NNMi administrator chooses a particular Node Group as the Neighbor Connections Filter. Only one-hop devices within the specified Node Group are displayed.

This Node Group is populated with a list of categories for network devices. Any devices within your management domain that match these categories are automatically included in this Node Group.

Devices in this group are automatically monitored for Node Sensor and Physical Sensor fault metrics.

(NNM iSPI Performance) This group automatically becomes a filter for Performance Reports (unless the group has no members). The NNMi administrator can change this default behavior.

(NNM iSPI NET) By default, Network Node Manager iSPI Network Engineering Toolset Software automatically uses diagnostic flows to monitor devices in this group.

This Node Group is populated with a list of categories for network devices that represent routers. Any router, switch-router, or gateway within your management domain is included in this Node Group.

This filter is used to create the Routers Node Group map that NNMi provides by default in the Topology Maps workspace.

Devices in this group are automatically monitored for Node Sensor and Physical Sensor fault metrics.

(NNM iSPI Performance) Devices in this group are automatically monitored for performance, including Node Sensor and Physical Sensor performance metrics. This group automatically becomes a filter for Performance Reports.

The NNMi administrator can change this default behavior. See Default Settings for Monitoring, Node Settings for Monitoring, and Create Node Groups Using Filters or Hostname Lists for more information.

This Node Group is populated with a list of categories for network devices that represent switches. Any switch, ATM switch, or switch-router within your management domain is included in this Node Group.

This filter is used to create the Switches Node Group map that NNMi provides by default in the Topology Maps workspace.