SNMP Counter Monitors

A counter monitor indicates whether an attribute is operating below a specific threshold, and it can automatically raise or lower the threshold.

This page summarizes each counter monitor that has been configured in the current WebLogic Server domain.

The 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. An offset increases the threshold each time the threshold is crossed, and a modulus decreases the threshold.

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 monitor.
Monitored MBean Type	The MBean type that defines the attribute you want to monitor. Do not include the `MBean` suffix. For example, `ServerRuntime`. MBean Attribute: `SNMPCounterMonitorMBean.MonitoredMBeanType` Changes take effect after you redeploy the module or restart the server.
Monitored MBean Name	The name of the MBean instance that you want to monitor. If you leave the name undefined, WebLogic Server monitors all instances of the MBean type that you specify in Monitored MBean Type. Do not enter the full JMX object name of the MBean instance. Instead, enter only the value of the object name's `Name=name` name-value pair. To create unique MBean object names, WebLogic Server encodes several name-value pairs into each object name. One of these pairs is `Name=name`. For example: `"MedRec:Name=MedRecServer, Type=ServerRuntime"` In the previous example, specify `MedRecServer` as the name of the MBean instance. MBean Attribute: `SNMPCounterMonitorMBean.MonitoredMBeanName` Changes take effect after you redeploy the module or restart the server.
Monitored Attribute Name	The name of an MBean attribute to monitor. This attribute must be in the WebLogic Server MIB. MBean Attribute: `SNMPCounterMonitorMBean.MonitoredAttributeName` Changes take effect after you redeploy the module or restart the server.
Polling Interval	The frequency (in seconds) that WebLogic Server checks the attribute value. MBean Attribute: `SNMPCounterMonitorMBean.PollingInterval` Minimum value: `1` Maximum value: `65535` Changes take effect after you redeploy the module or restart the server.
Threshold	Specifies a value that triggers the Counter Monitor to generate a trap. The Counter Monitor generates a trap each time it polls the value and determines that the value has transitioned from below the threshold to at or above the threshold. While the value remains at or above the threshold, the Counter Monitor does not generate additional traps. If the threshold is 0, the counter monitor to generates a trap each time it polls the value, unless the value is negative. MBean Attribute: `SNMPCounterMonitorMBean.Threshold` Minimum value: `0` Changes take effect after you redeploy the module or restart the server.
Offset	An integer value to be added to the threshold value when the threshold is crossed. If Offset is `0`, a trap is generated each time the agent polls the monitored attribute and its value still exceeds or equals the value in the Threshold. If Offset is larger than `0`, the value of the offset is added to the threshold each time the threshold is crossed. For example, if you set Threshold to 1000 and Offset to 2000, when the observed attribute exceeds 1000, the Counter Monitor sends a notification and increases the threshold to 3000. When the observed attribute exceeds 3000, the Counter Monitor sends a notification and increases the threshold again to 5000. MBean Attribute: `SNMPCounterMonitorMBean.Offset` Minimum value: `0` Changes take effect after you redeploy the module or restart the server.
Modulus	An integer value to be subtracted from the threshold value when the threshold value is crossed. If Modulus is 0, a trap is generated each time the agent polls the monitored attribute and its value still exceeds or equals the threshold value. If Modulus is larger than 0, the value of the modulus is subtracted from the threshold each time the threshold is crossed. MBean Attribute: `SNMPCounterMonitorMBean.Modulus` Minimum value: `0` Changes take effect after you redeploy the module or restart the server.