Monitors the level of buffer allocation failures on the network device
The monitor indicates the number of memory buffer allocation failures on this device. This monitor has two possible states:
Healthy: The number of allocation errors is below the threshold.
Error: The number of allocation errors exceeds the threshold.
The following options can be configured on this monitor:
Option | Definition | Default |
Interval | Amount of time in seconds between checks of the device status | 240 seconds |
Number of retries | Number of attempts in each monitoring interval before the interval's sample is discarded | 3 |
Number of samples | Number of consecutive samples before the monitor changes state | 3 |
Timeout | Amount of time in milliseconds to wait for a response from the device before the sample times out and a new attempt is made to sample the value | 3,500 milliseconds |
Threshold | Number of buffer allocation failures | 0 |
This monitor enters an error state when the number of memory buffer allocation failures exceeds the configured threshold. The default is 0.
Use the Health Explorer to check the details for the state change on the State Change Events tab for the monitor. This data shows the calculated performance counter value that caused the health state change. Consult the device manufacturer's documentation for more information on the problem and troubleshooting procedures.
Target | System.NetworkManagement.A3Com_Performance_Memory | ||
Parent Monitor | System.NetworkManagement.Memory.MemoryException | ||
Category | PerformanceHealth | ||
Enabled | True | ||
Alert Generate | True | ||
Alert Severity | MatchMonitorHealth | ||
Alert Priority | Normal | ||
Alert Auto Resolve | True | ||
Monitor Type | System.NetworkManagement.ComputedThresholdMonitorType | ||
Remotable | True | ||
Accessibility | Public | ||
Alert Message |
| ||
RunAs | Default |
<UnitMonitor ID="System.NetworkManagement.A3Com.Memory.BufferAllocationFailures" Accessibility="Public" Enabled="true" Target="NetworkLibrary!System.NetworkManagement.A3Com_Performance_Memory" ParentMonitorID="System.NetworkManagement.Memory.MemoryException" Remotable="true" Priority="Normal" TypeID="System.NetworkManagement.ComputedThresholdMonitorType" ConfirmDelivery="false">
<Category>PerformanceHealth</Category>
<AlertSettings AlertMessage="System.NetworkManagement.Generic.Memory.BufferAllocationFailures.AlertMessage">
<AlertOnState>Error</AlertOnState>
<AutoResolve>true</AutoResolve>
<AlertPriority>Normal</AlertPriority>
<AlertSeverity>MatchMonitorHealth</AlertSeverity>
<AlertParameters>
<AlertParameter1>$Target/Host/Property[Type="System!System.Entity"]/DisplayName$</AlertParameter1>
<AlertParameter2>$Data/Context/Value$</AlertParameter2>
</AlertParameters>
</AlertSettings>
<OperationalStates>
<OperationalState ID="OverThreshold" MonitorTypeStateID="MTSThresholdError" HealthState="Error"/>
<OperationalState ID="UnderThreshold" MonitorTypeStateID="MTSThresholdSuccess" HealthState="Success"/>
</OperationalStates>
<Configuration>
<Interval>300</Interval>
<NoOfRetries>3</NoOfRetries>
<NumberOfSamples>3</NumberOfSamples>
<Timeout>3500</Timeout>
<SnmpVarBinds>
<SnmpVarBind>
<OID>.1.3.6.1.4.1.43.45.1.6.1.2.1.1.6.$Target/Property[Type="NetworkLibrary!System.NetworkManagement.LogicalDevice"]/Index$</OID>
<Syntax>0</Syntax>
<Value VariantType="3"/>
</SnmpVarBind>
<SnmpVarBind>
<OID>.1.3.6.1.4.1.43.45.1.6.1.2.1.1.7.$Target/Property[Type="NetworkLibrary!System.NetworkManagement.LogicalDevice"]/Index$</OID>
<Syntax>0</Syntax>
<Value VariantType="3"/>
</SnmpVarBind>
</SnmpVarBinds>
<ComputedPerformanceValue>
<Summation>
<NumericValue>
<Delta>
<NumericValue>
<XPathQuery Type="Double">SnmpVarBinds/SnmpVarBind[OID=".1.3.6.1.4.1.43.45.1.6.1.2.1.1.6.$Target/Property[Type="NetworkLibrary!System.NetworkManagement.LogicalDevice"]/Index$"]/Value</XPathQuery>
</NumericValue>
</Delta>
</NumericValue>
<NumericValue>
<Delta>
<NumericValue>
<XPathQuery Type="Double">SnmpVarBinds/SnmpVarBind[OID=".1.3.6.1.4.1.43.45.1.6.1.2.1.1.7.$Target/Property[Type="NetworkLibrary!System.NetworkManagement.LogicalDevice"]/Index$"]/Value</XPathQuery>
</NumericValue>
</Delta>
</NumericValue>
</Summation>
</ComputedPerformanceValue>
<Threshold>0</Threshold>
<ObjectName>Memory</ObjectName>
<CounterName>Change in Buffer Allocation Failures</CounterName>
</Configuration>
</UnitMonitor>