White Papers - Node Classification - Classifying Nodes Manually -
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Classifying Nodes Manually

There are three different ways to manually classify nodes with NerveCenter:

• Classify All Nodes Admin menu option
• Classify option on the Node List window pop-up menu
• Classify button on the SNMP page of the Node Definition window

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  Note    When NerveCenter attempts to manually classify a node, any earlier SNMP version-specific information for that node object in its database is lost. For example, if a node was marked earlier as an SNMP v3 node and as a result of a new manual classification, the node is now marked as `unknown', then the SNMP v3-related security information like, `security level', and `authentication protocol' will be lost. Also note that NerveCenter does not poll for nodes that have an SNMP version value of `unknown'.

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Classifying All Nodes

The Classify All Nodes option can be very useful when the user needs to classify all available nodes in NerveCenter database. NerveCenter classifies nodes using this option based on the highest supported SNMP version at the corresponding agents up to the `maximum classification version' specified by the user. If NerveCenter cannot determine the supported SNMP version at any particular agent, it marks the version for the corresponding node object, in its database as `unknown' and assigns the AutoClassifyFailed error status to the node.

 
  To use the Classify All nodes option:

1. Open NerveCenter Client.
2. Connect to the NerveCenter Server.
3. From the Admin menu, select Classify All Nodes.

Classifying Select Nodes

Classifying select nodes can be useful when you only want to classify a group of selected nodes from all the available nodes in NerveCenter database. Like the Classify All Nodes option, NerveCenter classifies select nodes based on the highest supported SNMP version at the corresponding agents up to the `maximum classification version' specified by the user. If NerveCenter cannot determine the supported SNMP version at any particular agent, it marks the version for the corresponding node object, in its database as `unknown' and assigns the AutoClassifyFailed error status to the node.

 
  To classify nodes using the Client's Node List window pop-up menu:

1. Open NerveCenter Client.
2. Connect to the NerveCenter Server.
3. From the Admin menu, choose Node List.
4. Select a group of nodes or node you wish to classify from the node list.

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   Note    You can either use the Shift key + Left mouse button combination or use the Shift key + Down arrow key combination to select consecutive nodes from the node list. If you need to select nonconsecutive nodes from the node list, use CTRL key + Left mouse button combination.

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5. Right-click to display the Node List window pop-up menu.
6. Select the Classify option.

Classifying a Node from the Node Definition Page

Classifying a node from the Node Definition page can be useful when you want to add a new node to NerveCenter database, and you are not sure about the SNMP version supported at the node's agent. If NerveCenter cannot determine the supported SNMP version at any particular agent, it marks the version for the corresponding node object, in its database as `unknown' and assigns the AutoClassifyFailed error status to the node.

 
  To use Classify button on the SNMP page of the Node Definition window:

1. Open NerveCenter Client.
2. Connect to the NerveCenter Server.
3. From the Admin menu, choose Node List.
4. Double-click the node from the node list you wish to classify.

   The Node Definition window displays.

5. Select the SNMP tab.
6. Click the Classify button to classify the node.