OpenView Network Node Manager: Designing and Implementing an Enterprise Solution

A Worldwide Computer Company

The IT department of this computer company is responsible for managing the corporate WAN. Other organizations provide site LAN management. Consequently, IT does not want NNM to discover any infrastructure and turns off autodiscovery. The backbone routers have a non-standard get community string to prevent site-based NNM systems from discovering beyond their management domain by accident.

A seedfile lists every router with a WAN connection and, at startup, NNM promptly begins drawing all the connections between these routers. There are hundreds of routers, and the Internet submap becomes quite dense. A map builder leverages his knowledge of the network to partition the map into geographies.

NNM is configured to poll ...