Monitoring Your Network - Monitoring SNMP Status and Operations - SNMP v3 Operations Log -
SNMP Error Status Monitoring Nodes

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.

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:

Signing a Log for SNMP v3 Errors Associated with Your Client

Whenever an SNMP v3 operation is requested or an error occurs while attempting an SNMP v3 operation, the NerveCenter Server logs a message to a file. If you are logged in to the NerveCenter Client that initiated the request causing a logged condition, NerveCenter displays a dialog box with the error that is logged as shown in Operations Log Error in Server Dialog Box for Your Client.

Operations Log Error in Server Dialog Box for Your Client

v3oplogmessageClientb

Users with administrator rights can acknowledge a logged condition from NerveCenter Client by signing the Operations log. Signing the log causes the icon to turn green in all connected Clients/Administrators.

You can also dismiss the dialog box without acknowledging the error condition. If you are logged on with user rights rather than administrator rights, your only option is to dismiss the dialog box; you cannot sign the Operations log.

To sign the Operations log:

After viewing the message that NerveCenter displays on your screen, check the Sign the log and dismiss errors checkbox.
Select OK.
The icon in the Status Bar turns green for all Clients or Administrators connected to the designated NerveCenter Server. You can later view this message again in the Operations log. This file, named v3messages.log, resides in the NerveCenter installation log directory. The file can be viewed in a text editor or word processor.

To dismiss the Error in Server dialog box:

OK

In this case, only the icon in your Client 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.

Signing a Log for SNMP v3 Errors Associated with a Remote Client or Administrator

Whenever an error occurs while attempting an SNMP v3 operation, the NerveCenter Server logs a message to a file. If you are logged on to some remote NerveCenter Client (one that did not initiate the error condition), you see a red icon in the status bar.

To sign the Operations log:

Double-click the red icon in the Status Bar.
The Error In Server dialog box is displayed.
Check the NerveCenter Server or Servers for which you want to sign the log.
Select OK.
The icon in the Status Bar turns green for all Clients or Administrators connected to the servers you checked. At a suitable time, you can open the Operations log and view the new message. This file, named v3messages.log, resides in the NerveCenter installation log directory. The file can be viewed in a text editor or word processor.

To dismiss the Error in Server dialog box:

Double-click the red icon in the Status Bar.
The Error In Server dialog box is displayed.
Select OK without checking any of the checkboxes.
In this case, only the icon in your Client 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.

Viewing the SNMP v3 Operations Log

Whenever an SNMP v3 operation is requested or an error occurs while attempting the operation, 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 can be viewed in a text editor or word processor. As NerveCenter adds more messages to the file, the file continues to grow until you manually remove old messages.

The log entries resemble the following:

06/20/2000 09:26:29 Tue - Event ID : NC_SERVER; Category ID : 
NC_THREAD_V3OP;Error Status : AutoClassifyFail; Error while 
communicationg using SNMPv1 for 10.52.174.51 because of : 
NC_PORT_UNREACHABLE;

Fields in the Operations Log describes the fields in the log:

Fields in the Operations Log

Field	Description
Date/Time	Date and time the record was logged. The format is month/day/year, hour/minute/second, and day (for example, 12/16/2000 11:32:29 Sat).
EventID	This always NC_SERVER.
CategoryID	Name of the thread where the event occurred.
Error Status	One of several error status strings. See SNMP Error Status for a description of SNMP v3 error status messages and which ones cause polling to stop for a node.
Error Description	Details of the error or operation.

SNMP Error Status	Monitoring Nodes
	29 July 2003