Designing and Managing Behavior Models - NerveCenter Support for SNMP v3 - SNMP v3 Operations Log -
Overview of NerveCenter SNMP v3 Support Signing a Log for SNMP v3 Errors Associated with Your Client

SNMP v3 Operations Log

Whenever a NerveCenter Server receives a request for an SNMP v3 operation (e.g. authorization or privacy key change request) or an error occurs while attempting to perform an SNMP v3 operation (e.g. v3 initialization fails), the NerveCenter Server logs a message to a file. This log file, named v3messages.log, resides in the NerveCenter installation log directory on the NerveCenter Server host machine. The file contains messages about SNMP v3 operations and errors resulting from requests that originate with any connected NerveCenter Clients, Administrators, and Command Line interfaces.

When an error occurs after attempting to perform an SNMP v3 operation, aside from logging the error in the log file, the NerveCenter Server notifies all connected NerveCenter Clients and Administrators in the following ways:

If you are logged on to the NerveCenter Client or Administrator that initiated the operation that caused an error condition, NerveCenter displays a dialog box with the error that is logged.
If you are logged on to some other NerveCenter Client or Administrator (one that did not initiate the error condition), you see a red icon in the status bar. When you double-click the icon, a dialog box displays the NerveCenter Server with the SNMP v3 error. If your Client or Administrator is connected to more than one Server, the dialog box lists all servers that currently have an error condition.

When your NerveCenter Client or Administrator displays a dialog box with an error condition, you can do either of the following:

Acknowledge the error condition by "signing the log." When you sign the log, NerveCenter notes this fact in the log file and changes the red icon to green for all connected Clients and Administrators.
Dismiss the dialog box without acknowledging the error condition. If you merely dismiss the dialog box, only the icon in your Client or Administrator turns green. For all other connected Clients and Administrators, the icon remains red and signals to those modules that the NerveCenter Server has some error that remains unacknowledged, or unsigned. Moreover, the Server does not indicate acknowledgment in the log file.

If the SNMP v3 operation affects a group of nodes (e.g., version change or classification failure), you will see only one instance for the group displayed in the error message dialog box. To see details for each node, you can look in the log file.

You must have administrator rights to initiate an SNMP v3 operation that can result in an error or to acknowledge a logged error condition. If you are logged on with only user rights, you can dismiss the error dialog box but not acknowledge an error condition.

Whether you acknowledge or dismiss the error, all messages remain in the v3messages.log for you to read.

For more information, refer to the following topics:

Overview of NerveCenter SNMP v3 Support	Signing a Log for SNMP v3 Errors Associated with Your Client
	29 July 2003