7.2.4 Interfaces to Unmonitored Nodes
Sometimes, you need to know the status of an interface that connects to a device you do not manage directly. For example, you want to know whether the connection to an application or Internet server is up, but you might not be responsible for maintaining that server. If you do not include the server in the discovery rules, NNMi sees the interface that faces the server as unconnected.
There are two ways to monitor the status of an important interface that connects to an unmonitored node:
Discovering the unmonitored node
When you add an unmonitored node to the NNMi topology, NNMi sees the interfaces connecting the node to the rest of the topology as CONNECTED. Then NNMi can poll these interfaces according to the monitoring configuration. NNMi discovers the node as Managed. For nodes that you do not want NNMi to monitor, you will need to set the mode to Not Managed.
- Note
Each discovered node counts toward the license limit, regardless of whether NNMi is actively managing that node.
Polling the unconnected interface
You can create a node group containing the network devices that provide connectivity for undiscovered nodes. Then enable polling of unconnected interfaces for the node group.
NNMi polls all interfaces on the devices in the node group, which can add a lot of traffic for a device with many interfaces.