OpenView Network Node Manager: Designing and Implementing an Enterprise Solution

Conducting Directed Discovery

Occasionally, a researcher will visit you and say, “I need an NNM view of the network from A to B showing all the devices between them.” The standard maps your NNM shop has do not provide such a network view, perhaps because it spans an area larger than a single management domain, or because the user wants to see devices that are normally not discovered. Therefore, the researcher cannot use a standard NNM system, and you will have to visit your test lab’s NNM system and build the map from scratch.

Begin with an empty seedfile and disable the discovery filter. Manually add the A and B devices and allow NNM to discover the local topology. Use your understanding of the network topology and carefully manage subnets ...