Auto-Discovery Rules

List-based discovery only.

If you see unexpected discovery results, re-evaluate the auto-discovery rules.

When NNMi discovery finds an address hint, it uses the first matching rule to determine if a node should be created. If no rules are matched, NNMi discovery discards the hint. The ordering number for auto-discovery rules determines the order in which the auto-discovery rule configuration settings are applied.

For each auto-discovery rule, check the following settings:

• Discover Included Nodes must be enabled for auto-discovery to occur for the rule.

• Verify that the following settings are correct for the type of nodes you want discovered for the rule:

  • Discover Any SNMP Device
  • Discover Non-SNMP Devices

  Remember that only routers and switches are discovered by default and non-SNMP nodes are not discovered. Enabling these settings without considering your environment can result in NNMi discovering more nodes than intended.