Managing NerveCenter
-
Managing SNMP Settings - SNMP Auto and Manual Classification Settings - When NerveCenter Classifies a Node's SNMP Version -
SNMP Auto and Manual Classification Settings
Enabling Auto-classification
When NerveCenter Classifies a Node's SNMP Version
There are two main ways that NerveCenter classifies nodes:
- On demand -- You can issue a classify command in NerveCenter Client to classify one, several, or all nodes in the database. Procedures for issuing such commands are described in Designing and Managing Behavior Models.
- Automatically -- You can set up auto-classification in NerveCenter Administrator. Then, when NerveCenter adds nodes to its database (discovered from a trap, added from a platform such as OpenView Network Node Manager, or imported from another NerveCenter), any nodes without version information are classified at the highest possible level. NerveCenter does not attempt auto-classification for nodes that you add manually in Client.
When you enable auto-classification, NerveCenter attempts auto-classification in the following instances:
- A node is added through a node file either from importutil or from the Client, and the node does not have a version or has the version "Unknown." This would happen, for example, if you were importing the node from a previous version of NerveCenter.
- A node is imported from another NerveCenter Server, and the node does not have a version or has the version "Unknown."
- A node is added from a trap, and the node's version is not v3. NerveCenter needs to verify whether these nodes are v1 or v2. If the trap indicates v3, NerveCenter does not need any further verification.
- NerveCenter is co-resident with network management platform and the platform sends nodes to NerveCenter. All nodes added from OpenView Network Node Manager are v1 by default.
NerveCenter does not attempt auto-classification for nodes that you add manually in Client.
Disabling auto-classification in Administrator prevents auto-classification for all these cases. If you choose to disable auto-classification, bear in mind that NerveCenter does not poll nodes whose SNMP version is unknown. (You can still classify nodes manually in NerveCenter Client using the available commands.)