Network Device: Fragments created Health Monitor

Jalasoft.Xian.SmartManagementPacks.NetworkDevices.FragmentsCreated.1.1 (AggregateMonitor)

This monitor catches Xian events that notifies when the Fragments created if has changed its state.

Knowledge Base article:

Summary

Number of created fragments is over threshold.

The number of fragments created is above the maximum threshold configured in Xian Network Manager 2012.

Causes

If the counter is at a suspect level, there might be a capacity problem, but this procedure could be required because of restrictions in the communication channel or also to reduce latency.

Resolutions

Designing an internal network is also possible in order to avoid fragmentation. For implementation purposes, it is fairly common to use 576-byte datagrams, whenever the entire path availability to handle larger packets cannot be verified.

Additional

Monitors the number of fragments created by the fragmentation process on the device.

Element properties:

TargetJalasoft.Xian.Common.Types.Standard.Snmp.Rfc1213.JsXNetworkDeviceSnmpInterfaceElementContainer
Parent MonitorSystem.Health.PerformanceState
AlgorithmWorstOf
CategoryStateCollection
EnabledTrue
Alert GenerateTrue
Alert SeverityMatchMonitorHealth
Alert PriorityLow
Alert Auto ResolveTrue
RemotableTrue
AccessibilityPublic
Alert Message
Fragments created Alert
{0}

Source Code:

<AggregateMonitor ID="Jalasoft.Xian.SmartManagementPacks.NetworkDevices.FragmentsCreated.1.1" Accessibility="Public" Enabled="true" Target="Standard_Snmp_Rfc1213!Jalasoft.Xian.Common.Types.Standard.Snmp.Rfc1213.JsXNetworkDeviceSnmpInterfaceElementContainer" ParentMonitorID="SystemHealth!System.Health.PerformanceState" Remotable="true" Priority="Normal">
<Category>StateCollection</Category>
<AlertSettings AlertMessage="FragmentsCreated_AlertMessage">
<AlertOnState>Warning</AlertOnState>
<AutoResolve>true</AutoResolve>
<AlertPriority>Low</AlertPriority>
<AlertSeverity>MatchMonitorHealth</AlertSeverity>
<AlertParameters>
<AlertParameter1>$Data/Context/Params/Param[3]$</AlertParameter1>
</AlertParameters>
</AlertSettings>
<Algorithm>WorstOf</Algorithm>
</AggregateMonitor>