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Performance collection for : UDP_PACKETS_DROPPED_SEC

Microsoft.LS.2015.Monitoring.Rule.ReportingPC.AVEdge.UDP_PACKETS_DROPPED_SEC (Rule)

Knowledge Base article:

Summary

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

The per-second rate of packets over UDP dropped by the relay.

Causes

This error occurs when an unexpectedly high rate of UDP packets is received at the A/V Edge Server causing some packets to be discarded. This could be the result of system overload or 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. If the traffic exceeds 250 Mbps per interface then increase the receive and transmit buffer size on the associate Network Interface Cards to three times the default values. If the cause is general system overload then increase capacity of the deployed A/V Edge Server function. 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 check the network source of sessions exceeding the bandwidth limits to allow further troubleshooting of the cause.

Element properties:

TargetMicrosoft.LS.2015.Component.AVEdge
CategoryPerformanceCollection
EnabledTrue
Instance NameLS:A/V Edge - UDP Counters
Counter NameA/V Edge - Packets Dropped/sec
Frequency900
Alert GenerateFalse
RemotableTrue

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.2015.Monitoring.Rule.ReportingPC.AVEdge.UDP_PACKETS_DROPPED_SEC" Enabled="true" Target="Microsoft.LS.2015.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 - Packets Dropped/sec</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>