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Outbound Discarded Packets

Microsoft.SystemCenter.NetworkDevice.Interface.OutboundDiscardPerf (Rule)

Knowledge Base article:

Summary

Outbound Errors Performance Rule Collects data for reporting purposes.

Causes

Below are the details of the Object Identifier (OID) that is queried via an SNMP GET

Object

OID

Description

ifOutDiscards

.1.3.6.1.2.1.2.2.1.19

The number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted. One possible reason for discarding such a packet could be to free up buffer space.

Resolutions

Below are some basic troubleshooting steps

  1. Check the cabling to the device.

  2. Perform any vendor specific hardware tests on the device to determine if the device's hardware is functioning properly

  3. Raise the threshold on the monitor. This will allow for better "tuning" of the application to your environment. Take care no to raise the threshold too much as this could allow important events to go unnoticed.

Element properties:

TargetMicrosoft.SystemCenter.NetworkDevice.Interface
CategoryPerformanceHealth
EnabledFalse
Alert GenerateFalse
RemotableTrue

Member Modules:

ID Module Type TypeId RunAs 
DS DataSource Microsoft.SystemCenter.NetworkDevice.SnmpDeltaPerformanceProvider Default
WA1 WriteAction Microsoft.SystemCenter.CollectPerformanceData Default
WA2 WriteAction Microsoft.SystemCenter.DataWarehouse.PublishPerformanceData Default

Source Code:

<Rule ID="Microsoft.SystemCenter.NetworkDevice.Interface.OutboundDiscardPerf" Enabled="false" Target="Microsoft.SystemCenter.NetworkDevice.Interface" ConfirmDelivery="false" Remotable="true" Priority="Normal" DiscardLevel="100">

  <Category>PerformanceHealth</Category>

  <DataSources>

    <DataSource ID="DS" TypeID="Microsoft.SystemCenter.NetworkDevice.SnmpDeltaPerformanceProvider">

      <Interval>600</Interval>

      <IsWriteAction>false</IsWriteAction>

      <IP>$Target/Host/Property[Type="NetworkDevice!Microsoft.SystemCenter.NetworkDevice"]/IPAddress$</IP>

      <CommunityString>$Target/Host/Property[Type="NetworkDevice!Microsoft.SystemCenter.NetworkDevice"]/CommunityString$</CommunityString>

      <Version>$Target/Host/Property[Type="NetworkDevice!Microsoft.SystemCenter.NetworkDevice"]/Version$</Version>

      <SnmpVarBinds>

        <SnmpVarBind>

          <OID>1.3.6.1.2.1.2.2.1.19.$Target/Property[Type="Microsoft.SystemCenter.NetworkDevice.Interface"]/ifIndex$</OID>

          <Syntax>0</Syntax>

          <Value VariantType="8"/>

        </SnmpVarBind>

      </SnmpVarBinds>

      <ObjectName>Interface</ObjectName>

      <CounterName>Outbound Discard Packets</CounterName>

      <InstanceName>$Target/Property[Type="Microsoft.SystemCenter.NetworkDevice.Interface"]/ifDesc$</InstanceName>

      <Value>$data/SnmpVarBinds/SnmpVarBind[1]/Value$</Value>

      <NumSamples>1</NumSamples>

    </DataSource>

  </DataSources>

  <WriteActions>

    <WriteAction ID="WA1" TypeID="SystemCenter!Microsoft.SystemCenter.CollectPerformanceData"/>

    <WriteAction ID="WA2" TypeID="SystemCenter1!Microsoft.SystemCenter.DataWarehouse.PublishPerformanceData"/>

  </WriteActions>

</Rule>