OpenView Network Node Manager: Designing and Implementing an Enterprise Solution

Demand Poll to Coax Along Discovery

When NNM isn’t discovering devices fast enough to suit your needs, you need to intervene. NNM may have backed off its discovery aggressiveness, or the netmon configuration checks may be scheduled for a time later than you care to wait. Usually, you have a good idea which device has the necessary information and can direct NNM to poll the node at once. The “Poll Node” menu item, formerly called “Demand Poll,” brings up a GUI that is equivalent to the command line nmdemandpoll. It forces netmon to immediately interrogate the device for its basic configuration, interface table, routing table, and ARP cache. This information usually allows NNM to discover additional devices and topology. However, there are wrinkles ...