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Active Sessions Exceeding Average Bandwidth Limit over TCP

Microsoft.LS.2015.Monitoring.UnitMonitor.ThresholdPC.AVEdge.TCP_SESSIONS_EXCEEDING_AVG_BWLIMIT (UnitMonitor)

Knowledge Base article:

Summary

The number of active relay sessions over UDP that are exceeding bandwidth limit.

Causes

This error occurs when there is an unexpectedly high rate of traffic sent through the A/V Edge Server within a UDP session. These sessions will be throttled by the A/V Edge Server. This could be an indication of an attempt to misuse the A/V Edge Server.

Resolutions

Check that the profile of network traffic to the A/V Edge Server is in line with expected usage. A network level trace can be used to determine if there is unusual amount of traffic originating from a single source. If the situation persists then enable tracing to identify the participants in sessions exceeding the bandwidth limits to allow further troubleshooting of the cause.

Element properties:

TargetMicrosoft.LS.2015.Component.AVEdge
Parent MonitorSystem.Health.PerformanceState
CategoryPerformanceHealth
EnabledTrue
Alert GenerateTrue
Alert SeverityError
Alert PriorityNormal
Alert Auto ResolveTrue
Monitor TypeMicrosoft.LS.2015.Performance.Double.ConsecutiveThresholdMonitor
RemotableTrue
AccessibilityPublic
Alert Message
[Skype] The number of active relay sessions over UDP that are exceeding bandwidth limit.
Perf Object Name:
Perf Counter Name: {0}
Perf Counter Value: {1}
Error Threshold: 20
Warning Threshold: 10
Consecutive Samples Repeat Count: 2

Please see the 'Product Knowledge' and the 'Alert Context' tab on Alert Properties view for more information.
RunAsDefault

Source Code:

<UnitMonitor ID="Microsoft.LS.2015.Monitoring.UnitMonitor.ThresholdPC.AVEdge.TCP_SESSIONS_EXCEEDING_AVG_BWLIMIT" Accessibility="Public" Enabled="true" Target="Microsoft.LS.2015.Component.AVEdge" ParentMonitorID="Health!System.Health.PerformanceState" Remotable="true" Priority="Normal" TypeID="Microsoft.LS.2015.Performance.Double.ConsecutiveThresholdMonitor" ConfirmDelivery="false">

  <Category>PerformanceHealth</Category>

  <AlertSettings AlertMessage="Alert_The_number_of_active_relay_sessions_over_UDP_that_are_exceeding_bandwidth_limit.">

    <AlertOnState>Error</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>Error</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Data/Context/CounterName$</AlertParameter1>

      <AlertParameter2>$Data/Context/SampleValue$</AlertParameter2>

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

    <OperationalState ID="Microsoft.LS.2015.Monitoring.UnitMonitor.ThresholdPC.AVEdge.TCP_SESSIONS_EXCEEDING_AVG_BWLIMIT_OverThreshold" MonitorTypeStateID="OverThreshold" HealthState="Error"/>

    <OperationalState ID="Microsoft.LS.2015.Monitoring.UnitMonitor.ThresholdPC.AVEdge.TCP_SESSIONS_EXCEEDING_AVG_BWLIMIT_UnderThreshold" MonitorTypeStateID="UnderThreshold" HealthState="Success"/>

    <OperationalState ID="Microsoft.LS.2015.Monitoring.UnitMonitor.ThresholdPC.AVEdge.TCP_SESSIONS_EXCEEDING_AVG_BWLIMIT_UnderThresholdOverThreshold" MonitorTypeStateID="UnderThresholdOverThreshold" HealthState="Warning"/>

  </OperationalStates>

  <Configuration>

    <ComputerName>$Target/Host/Host/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</ComputerName>

    <CounterName>A/V Edge - Active Sessions Exceeding Avg Bandwidth Limit</CounterName>

    <ObjectName>LS:A/V Edge - TCP Counters</ObjectName>

    <InstanceName/>

    <AllInstances>true</AllInstances>

    <Frequency>900</Frequency>

    <WarningThreshold>10</WarningThreshold>

    <ErrorThreshold>20</ErrorThreshold>

    <NumSamples>2</NumSamples>

  </Configuration>

</UnitMonitor>