26.3.2 Selecting a discovery method
Determine which of the following models to use for NNMi discovery:
Seeded discovery without auto-discovery rules. In this type of discovery, because the administrator adds only the necessary nodes to the seeds, the nodes to be discovered can be restricted. Perform only the operation described in the following subsection:
Perform the operations described in both of the following subsections:
For details about the differences between the NNMi discovery methods, see Determine Your Approach to Discovery in NNMi Help.
- Note
NNM licenses are counted based on the number of nodes being managed (nodes whose status is monitored). In contrast, NNMi licenses are counted based on the number of nodes deployed in the discovered topology (both monitored and non-monitored nodes).
Because of this difference, some users might wish reduce the number of discovered nodes. However, also including non-monitored nodes in the database offers some benefits.
Examples:
Even when you are not responsible for managing devices, you can display the service provider's access routers and connections to them.
The status-monitoring algorithm is based on the connections displayed in the database. An interface in which the device at the other end of the link is not in the database is not monitored. You can change the default status-monitoring configuration or discover that device. Which one to select depends on the part of the usage environment in which you are interested. For details, see 7.2.4 Interfaces to Unmonitored Nodes.