Performance collection for : UDP_SESSIONS_EXCEEDING_PEAK_BWLIMIT

Microsoft.LS.2013.Monitoring.Rule.ReportingPC.AVEdge.UDP_SESSIONS_EXCEEDING_PEAK_BWLIMIT (Rule)

Knowledge Base article:

Summary

This rule collects this performance counter for reporting/troubleshooting purposes for the counter: UDP_SESSIONS_EXCEEDING_PEAK_BWLIMIT

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:

Target	Microsoft.LS.2013.Component.AVEdge
Category	PerformanceCollection
Enabled	True
Instance Name	LS:A/V Edge - UDP Counters
Counter Name	A/V Edge - Active Sessions Exceeding Peak Bandwidth Limit
Frequency	900
Alert Generate	False
Remotable	True

Member Modules:

ID	Module Type	TypeId	RunAs
CollectPerfCounter	DataSource	System.Performance.OptimizedDataProvider	Default
WriteToDB	WriteAction	Microsoft.SystemCenter.CollectPerformanceData	Default
WriteToDW	WriteAction	Microsoft.SystemCenter.DataWarehouse.PublishPerformanceData	Default

Source Code:

<Rule ID="Microsoft.LS.2013.Monitoring.Rule.ReportingPC.AVEdge.UDP_SESSIONS_EXCEEDING_PEAK_BWLIMIT" Enabled="true" Target="Microsoft.LS.2013.Component.AVEdge" ConfirmDelivery="false" Remotable="true" Priority="Normal" DiscardLevel="100">

  <Category>PerformanceCollection</Category>

  <DataSources>

    <DataSource ID="CollectPerfCounter" TypeID="SystemPerf!System.Performance.OptimizedDataProvider">

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

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

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

      <InstanceName/>

      <AllInstances>true</AllInstances>

      <Frequency>900</Frequency>

      <Tolerance>5</Tolerance>

      <ToleranceType>Absolute</ToleranceType>

      <MaximumSampleSeparation>4</MaximumSampleSeparation>

    </DataSource>

  </DataSources>

  <WriteActions>

    <WriteAction ID="WriteToDB" TypeID="SC!Microsoft.SystemCenter.CollectPerformanceData"/>

    <WriteAction ID="WriteToDW" TypeID="SCDW!Microsoft.SystemCenter.DataWarehouse.PublishPerformanceData"/>

  </WriteActions>

</Rule>