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SNMP Monitors

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WebLogic SNMP monitors poll WebLogic Server MBeans at a specified interval to check for the occurrence of conditions or the crossing of thresholds. When a monitor detects the specified condition, it sends a trap to the configured trap destinations.

This page summarizes the SNMP monitors that have been configured for the current domain.

A managed bean (MBean) is a Java bean that provides a generic management interface based on Java Management Extensions (JMX). All WebLogic resources provide MBeans and the WebLogic SNMP agent uses this JMX interface to retrieve monitoring data.

You can create the following types of SNMP monitors:

A string monitor periodically polls an attribute whose value is a string and generates a trap if the attribute value matches a string that you specify. Alternatively, you can specify that the monitor generates a trap if the attribute value does not match your string.
A gauge monitor indicates whether an attribute is operating within a specific range.
A gauge monitor periodically polls an attribute whose value is an integer or floating-point and compares the attribute value with a high and a low threshold that you define. It generates a trap if the attribute value is equal to or exceeds the high or low threshold.
A counter monitor indicates whether an attribute value is above a specific threshold.
A counter monitor periodically polls an attribute whose value is an integer and compares the attribute value with a high threshold that you define. It generates a trap if the attribute value equals or exceeds the high threshold. You can also configure an offset or modulus, which increases or decreases the threshold each time the threshold is crossed.

Creating a WebLogic SNMP monitor offloads polling of WebLogic resources from the SNMP management station to the Administration Server.

Column Display

You can show fewer or additional data points on this page by expanding Customize this table and modifying the Column Display list. Each data point displays in its own table column.

The following table lists all of the data points that you can display in columns on this page.

Name	Description
Name	The name that you specified when you created the SNMP monitor.
Type	The type of SNMP monitor.
Monitored MBean Type
Monitored MBean Name
Monitored Attribute Name
Polling Interval

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