Analyzing a network segment

we want to find possible network path(s) between two selected nodes in the network topology. This is required to invetigate when connectivity only between two nodes stops working, while the complete network is not down.
How can we achieve this using opennms? Any suggestions would be helpful.

Take a look at Enhanced Linkd doucmentation. This is how OpenNMS determines connections between devices. You’ll need to have SNMP polling working and a discovery protocol enabled on your devices.